This is awesome, thank you. Now I will watch your video how to modify this controller. Your videos are really great, I really enjoy learning from you. Thank you.
Excelente trabajo de enseñanza! Muy adecuado para los que somos consumidores de estos equipos y, la mayoría de las veces nos movemos a ciegas. Muchas gracias!
Хороший и подробный обзор регулятора. Думаю, что при испытании мотора нужно давать нагрузку на вал двигателя и нагрузка должна быть переменной. Тогда мы увидим более полную картину свойств регулятора.
Super cool. Thanks for the demo and testing, Just bought 2 of these in ollna dofr Eur 12.95. Not too bad. For PWM control of a stryropor foam cutting knife with Ni-Cr thick round knife and a 150 mm straight knife to cut 120 mm EPS high pressure floor isolation foam.
Hi Sir, thats a very detailed video 👍 and helps me getting closer to a propper solution. I try to power two hooverboard motors, each 250W. Is it possible to use such controllers in leck of hall sensors and control them with a thumbthrottle? 😅 May it is stupid...thx
Hi! Do you know of any cheapish PWM controllers that could handle ~60-65V input (12Vx5 Pb batteries) and around ~30A continuous current ? The ones i've found on aliexpress and the likes only go up to ~55V from the spec sheet.
Hello this was so informative. I think I have burnt mine. Now I can not control the speed motor starts directly. Could you please guid me with the troubleshooting what should I look first.
Does this PWM controller offer forward and reverse motor direction ? Does the pot control both directions ? If the pot is at 12 o'clock does it play forward 100% ?
Hi, I made this video to answer your first question and demonstrated it. the speed of motor is controlled to 100% of duty cycle. Here I have modified so it can be controlled using arduino with PWM ua-cam.com/video/ipFxYQkB5uw/v-deo.html
Hi I'm using 10A speed controller with 3s Lithium ion batteries and motor is RS550 PF ,when i increase the speed the controller gets hot especially the motor wire connectors do you know why would that be? Thank you
@@robojax hi thanks for the update, Also I used thick wire but still getting hot where the pwm speed controller terminal, I'm using rs550pf motor for a rechargeable fan ,do you think if the fan blade propeller is heavy? And will the effects the overheating issue? Also what if I use 550 motor ?
hey, could this be used as a soft starter? im loooking to limit the inrush current on a motor, it should be turned on by a switch on the 12volts line, so the pot stays on the max speed i guess
Hello. very good your material. I have a problem, actually it's a question, not really a problem. I want to use this module to dim the headlights of a car. But using, in a car, the ground from the car's power source (battery) is the same as the ground of the load, i.e. the bulbs. This means that between the 2 ground connection screws, of the source and the load, we have continuity. Is it ok to use it like this?
Theoretically it should not work because the MOSFET(source-to-gate) voltage will be reduced and it should not turn ON. But I don't know internal configuration of this module and it might work.
Hi Mr Shamshiri. I have 10A version of this module, it works fine But the Schottky diode heats as the ampere raise above 2A! I dismount it and add a huge heatsink to it and I connect it again via 3 wire to PCB because 10A will blow it up definitely! but you use them without any change in your tutorials! what you think? my module has any difficulty or the diode is faulty? (chekar konim? :)
Hi I am not sure if the diode is faulty, one quick solution would be to put two diodes in parallel meaning anode to a doe and cathodes to cathode and this way the current stress on the diode is reduced to half.
@@robojax thanks for your quick answer. actually when the motor has heavy load the diode starts to heat up. I don't know why. the diode is for making a way for suppressing kickback voltage of motors inductive coils. when I hinder the motor to rotate maybe it increases the kickback effect?! after all, thanks for your advise 🙏
Why did the schottky diode get so hot at the 12V 20A test? I presumed that there would be very little flyback diode current with a resistive test load. Was the test load inductive to simulate a motor? (....... Would the heat come from about 0.2V X 20A X2?, but at some fraction of the PWM cycle?). Thanks for your clear explanations, the videos are excellent.
Sir, YOUR test at time 10:00 in your video, perhaps you could be kind enough to say why the flyback diode got so hot at 20A. I thought it would only be active with an inductive load. Your reply is very much appreciated, Thank You.
Sorry for very stupid question, but is it CURRENT OUTPUT REGULATOR? And can I use it to charge a battery with 40a bms (charge 20a) using 100a power supply connected to this?
Hi I like your video. What will you recommend me if I want to run a 60 volt 15 amp motor continuously? I want also to reverse the direction of the motion. Thank you
The rpm of a DC motor cannot effectively well controlled by just adjusting the input voltage or current, as this will have more impact on the torque of the motor than on the rpm. A direct connection of a DC motor will have it work at its peak power, so in order to lower the speed we need to lower the average supplied power over a certain period of time, and that is basically what the PWM does: it modulates a continuous DC signal (lets say 12V) into a series of pulses with a certain duration (depending on how high the percentage of the peak power we want to supply to the motor). A duty cycle of 50% will mean that despite you actually supplying the nominal voltage to the motor, you will only do so 50% of the time, and as such, the motor will only provide 50% of its power. Answering your question: a direct connection to the battery is the equivalent of having the PWM set up to a duty cycle of 100%. Disregarding any losses of the control circuitry, the maximum speed a PWM can drive a motor is that motor's nominal max speed pm.
When adjusting speed on a 12v 1A cooling fan there seems to be spots on the pot where output goes to zero say on a couple portions of the sweep of the pot.
May the wiring is loose or connection is bad. Yes it is possible that you might got a bad potentiometer. Here is a hack where you control this motor driver using Arduino board ua-cam.com/video/ipFxYQkB5uw/v-deo.html
Thanks for the testing. I would be interested in knowing why it couldn't handle what it says it can. Where is the faulty design or component? Would it be a simple change or is \the whole design inadequate....other than just not enough cooling.
this is made in China by someone who doesn't know even to name this product or give it a model. Then 100s of other people reproduced it and no documentation. If you are know the components, you can easily draw the circuit but not worth it.
I want to power / control an automobile heater motor. I need power supply and motor to share common ground. On your controller does the input power and output share common ground?
when i went home from work, planning to check it but forgot. Today I added images on the resources page for this module. the link is in description but here for you robojax.com/learn/arduino/?vid=robojax_PWM-20A and I've shown in image that + positive line is common.
@Robojax - Would it be possible to replace the potentiometer with something else to add a remote controlled regulation ? Like IR remote controlled potentiometer or something like? I would really much appreciate if you could help me out with some info 🙏🙏
check the link in description or search for the key word "hack" I have another video on how to use control this. learn how to Search for a Particular video in a channel here ua-cam.com/video/OhkUceBWcHs/v-deo.html
I have since bought 12v dc 0.18a brushless 2 wire fan. I bought a pwm controller to vary the speed but the fan did not even turn with the potentiometer in either position. Struggling to get any info even from suppliers. Can you advise what type of controller I need for this type of fan? Thankyou. Great videos.
if it has 2 wires, it should work. something is wrong. Check the resistance between the two wires using Ammeter or ohmmeter. you should get something less than 10Ω. if you get higher resistance, then it is bad. Test is and let me know
There is no resistance just an open cicuit. The fan runs on my bench p.s.u and I am able to vary the speed also by this method. The pwm I bought varies another older fan but not the new one . Do you think that I need to control it with another method?
Lm317 regulator max voltage difference is 40v, so here it is set to about 7v (for the 555) so max input voltage is 47v. Maybe they used the Lm317HV which has a 60V in-out so it can be driven up to 67v.
You need to know the voltage. Otherwise how can you power it up? You need to find the current (ampere),from voltage using the powers (watt) here is formula P=V*A. Or A=P÷V. Yes this can dim it if it is within the range of this module
Hi, the speed controller on my little mig welder died, the motor is 24vdc, could this board work ok with the power being cut on an off every time the feed trigger being pulled, hope you can help, thanks k
@@robojax hi, thanks, so if i had the potentiometer set to just say, number 3 i could cut the power in and out, and it would turn the motor at that speed, great ill give it a go, And hello from Ireland :)
Yes it will dim it. The flicker depends on camera and how it records and the PWM frequency this module uses. so I don't have both information. you would have to try and see.
Great video I would like to run a 12vdc gear motor off a joystick and be able to independently change the speeds of forward and reverse. Is this possible? If so could you point me to a video or diagrams? Thank you
I have shown that this can control motor in one direction. To pick a motor driver, beside the voltage, the current or power is need to be known. Search channel as I have tones of videos on motor driver and using Arduino.
Ahmed, I want to run a RC car with this that will carry around 10-15 kg weight around, so for 4wd (4 Wheels with total 4 DC motors) so what do you suggest, I need 5amp current for each motor, so is there a way I can attach all 4 motor wires (but I see only 2 sockets for motors + and - on this pwm module) how can I achieve that ? How many max motors can this 20amp pwm module allow me to connect and run at once ? Pls assist Ahmed, thanks for your efforts
Hi, I came so many time on this comment and did not understood it. so here I am replying now. if you connect 2 or motor motors, you would connect them in parallel to have the same voltage. you can also connect them in series. but keep in mind that they all will run together. in terms of current, I have shown how much this module can handle and I don't remember it. when you connect 4 motors, the total current is divided by 4. so each motor get 1/4 of the current. I hope I've explained it.
Hi thank you for your video. Could you please help me understand why some PWM controllers cause extra noise in the motor? I have tried 3 different PWM controllers for a DC fan motor and 2 of them cause some kind of noise when operating at lower duty cycle. Thanks
Hi, each motor has a threshold pwm value which can start running. when it is below that value it will start making noise. the noise is from turning ON and OFF. you can find it experimentally and always set that value as zero value.
I believe If you get the same module, it should work for days. I don't know . test it in a safe environment before putting it into practical use for safety reason.
I am reading your comment after 8 hours. you should not have waited. Always check description of each video. you will be surprised. or should have searched my channel. I've made video for that.
Hi, im using the same controller to drive a dc motor, my question is can i change the potentiometer for a 5v hall effect foot pedal? Am i right in thinking the input voltage to the Potentiometer is 5v? then Earth and signal out? So a 3 wire 5v hall effect foot pedal should be able to control the output of the controller the same as the pot? Thanks alot, and great video.
hi, I am not sure about the Hall effect pedal you are using. But hall effect should be a "Switch" meaning it just Turns ON or OFF it doesn't got through difference values between 5V and 0V. It it does, then it should work fine.
Thanks for the great tutorial, what if we want to drive a motor in both directions (control the direction). I have watched your XY-1250 and these controllers can be controlled via arduino, can we somehow use 2 of these controllers to control a DC motor in two directions? Because normal BTS7960 drivers wont hold >10A motor for few seconds.
You are welcome. The best thank you for me is to subscribe to my channel. BTA7960 can run motor greater than 20A here ua-cam.com/video/PUL5DZ9TA2o/v-deo.html Here is another module ua-cam.com/video/UzCmynbpAIk/v-deo.html
I have the same question. For a 90V 3.5A DC Motor. You can implement an H Bridge with 2 relays but normal ones can handle up to 30V DC, so I accidentally burned them... Using solid relays may be an option but is much more expensive. I wonder if connecting 2 drivers to the same motor is possible (with diodes?)
What is the size of the pot ... I bought the same pwm potentio b100k ... But the pot didn't work ... I used 24volt input so the voltage couldn't be adjusted ... It only reads 24volt the output, please help me mr.. Thanks :D
I have explained it that this is controlling the motor using PWM. in PWM the voltage stays the same. it does not change. it is the fast turning ON and OFF of the voltage called duty cycle that causes the motor to speed up or slow down. So the voltage should be the same as input or a little lower like 0.5 to 1V lower.
Hi, i tried to use it with 24volt 250watt motor with two 12 volt 9 amp baterries( 24 volt total) but the Fuse went off immediately. what should i do? how can i make it work.?
Not directly. RC receiver has PWM signal. but if you modify this module, it is possible.. the 555 has output, and if you disconnect the output of the 555 from the input of MOSFET and connect the output of your receiver, it might work. You would have to see the circuit of this module. I did not pay attention to the circuit for modification purpose.
this is PWM (pulse width modulation) controller NOT a voltage regulator. You need a CC or constant current regulator that can control current. #robojax_constant_current
hello sir!!!!!!!!!!! does this module boost voltage? i have 12-24 V dc motor. but my supply is 12v only(9ah battery). can i run motor at 24 v with this module?
I have that kind of module i used it on my hho generator but the mosfet and the schottyy its getting hot when reaching 4amp. With 12vdc and with higher current (10A) the volage is also going drop into 10vdc.. Can i parallel using 2 pwm module in paralell the input and output. For better performance??
Please tell me what should be the supply adaptor rating which i want to connect to the circuit ...........if i want to regulate 3 ,12 v 500mA dc fan..... please reply...??🙁
Hi, the supply is mentioned in the title "10-60V" . But this is very powerful like 40 times of what you need. (for one fan) you may get this ua-cam.com/video/inUOVV0LnoQ/v-deo.html which is much cheaper. Make sure it has heat sink.
exactly what are you trying to do? the car ignition coil needs 12V and electronic switch. When the switch goes OFF, it generates 12kV to 24kV (12000V to 24000V). this device just controls the PWM of 12V.
@@robojax hi thanks for the reply. I was planning on using it so I could create hv sparks . Would this not work for that ? Because iv already ordered it lol
Do you know if the voltage across the POT matches the supply voltage ? I am looking into using a 0-10v input signal for one of these for linear control with PID
I do not think the voltage across the pot is supposed to match supply voltage, those small potentiometers(100k?) Would burn up if hooked up to a 240 watt power source
@@robojax Good video thanks. Do you have a schematic of this PWM Driver. I want not to control it by 50KOhm Poti, i want to controll duty--cycle PWM out by analog Signal 0-10V. Is it possible to manipulate the board to use it with 0-10V controll signal instead the potentiometer. Regards Peter from Germany.
Hi, excellent video, with a well done analysis. would you like to raise this scheme? it seems to be very simple and very functional and the best, it works. I would like to try to assemble one of these. Thank you.
@@robojax Thanks for the answer. I live in Brazil, everything here has exorbitant prices, these values you entered are not practiced here, we pay 4 to 5 times more expensive, and I have all the components for the controller assembly. Looking through the photos, I managed to raise the scheme. I would like to confirm that everything is correct, and component values are missing.
to know the amount of current, I presented the test results with 100% duty cycle of PWM. when duty cycle is 0%, it is so low, we can neglect it. so what the video to get the answer.
Please watch the video without escaping. You have not watched the video fully. I have explained them all. Also please look under the video in the description. I have provided all the datasheets for components which I have explained in video.
Can you make a video about arduino mega connect with a keypad and lcd, by the value entered by the keypad it runs a motor driver (MD10C) that is connected to a brushless DC motor (BLDC)
Hello, your question show that you have not even watched 3 minutes of the video. I have shown every details of this module. So please watch to get the answer.
@@robojax you're wrong.I did whatch it again with too many ads.but I didn't find any thing about diffrence or comparison between pwm motor controller and buck converter.am not expert in electronics but it should be some diffrence between them.so tell me when exactlydid you say about it?
Could I have 10 of these units in parallel, fed a single voltage stablised PWM from an Arduino, supplying 24v( maybe 36v) to a 24v truck starter motor,for an electric motorcycle project,200 amp motor controller is £250
if all of them are controlled by same Arduino, and the same power supply. it should work. yes. Make sure to test each separately to see if the output voltage of them are the same. if voltage are not the same, then you will waste energy. good luck
Hell, all the questions have been answered in the video. Even the title says the voltage and current. I have spent so much time prepared this so all your questions answered. if you want to control it with other devices such as Arduino, I have a lot a hack for this. the link is in the description.
Dear brother I want install one pwm on my car hho unit 12V 20 A running time 24 hrs ampian temp 40 C please advise best way I am in India if it successful looking for 100 unit thanks Simon
you should get higher current rating like 30A to be safe specially running 24h/day and at 40°C. I have got another video but that is for 60A ua-cam.com/video/a6LLbJtnPPA/v-deo.html eBay would your best starting point. Do not start 100 units. Test first 2 or 3 types devices for at least 2 days and then come to conclusion. All ratings on eBay is based on manufacturer rating which requires adequate cooling.
sorry I did not understand. Where? or which? I assume it has nothing to do with this module. if your question is "where" , then eBay, AliExpress or Amazon. if which then it is big question. it depends on how much you want to spend. perhap from $50 kit to $50,000
@@robojax thank you for reply, yes the question is not related to that video. But I want to know what are the parameters or criteria I should consider when I need to buy an oscilloscope.
Tôi đã sử dụng google dịch và nó không có nghĩa gì cả. Nó nói "điên 220v". Bây giờ sử dụng các từ đơn giản để google có thể dịch nó. Tôi sẽ phát lại. Nhưng 2000mAh thì "mah" là dung lượng pin chứ không phải động cơ. Hãy làm cho nó rõ ràng để tôi hiểu. Nhưng tôi có thể nói với bạn điều này, tôi đã giải thích mọi thứ mô-đun này làm. Nếu bạn xem cẩn thận và không bỏ qua, bạn sẽ nhận được câu trả lời của mình. cảm ơn. Ahmad hình thành Canada.
Hi, Why would you? If you try to make it, it would cost you more. they sell it very cheap like this. If you need it then do google search for the module, get high resolution images and draw the diagram.
I presented the current and it works with 10V to 60V. 500W is not a clear number. you need much more information to get exact capacity of the motor. Search online with result from this video and your motor and you will find out.
Hello, thanks for sharing your reviews on these. I have a 60a version of this with a knob. I'm trying to find a way to use a 5vdc PWM signal from my computer to control this module instead of the knob. Thanks if you have any insight.
नमस्कार श्री मान् आपका यह विडियो तथा आपका समझाने का तरीका बहुत ही अच्छा लगा, मुझे 24 वोल्ट 20 एम्पियर डीसी मोटर का कंट्रोलर की जरूरत है,क्या यह सही है तो कैसे कहाँ मिलेगी व किमत भी बताएं, मेरा वाट्स ऐप नं 9887026936 है धन्यवाद
This is awesome, thank you. Now I will watch your video how to modify this controller. Your videos are really great, I really enjoy learning from you. Thank you.
You are welcome!
Excelente trabajo de enseñanza! Muy adecuado para los que somos consumidores de estos equipos y, la mayoría de las veces nos movemos a ciegas. Muchas gracias!
Perfect explanation with a very smooth voice.
Хороший и подробный обзор регулятора. Думаю, что при испытании мотора нужно давать нагрузку на вал двигателя и нагрузка должна быть переменной. Тогда мы увидим более полную картину свойств регулятора.
Спасибо. Ты прав .
Super cool. Thanks for the demo and testing, Just bought 2 of these in ollna dofr Eur 12.95. Not too bad. For PWM control of a stryropor foam cutting knife with Ni-Cr thick round knife and a 150 mm straight knife to cut 120 mm EPS high pressure floor isolation foam.
You are welcome. Thank you for sharing the experience.
Hi Sir, thats a very detailed video 👍 and helps me getting closer to a propper solution. I try to power two hooverboard motors, each 250W. Is it possible to use such controllers in leck of hall sensors and control them with a thumbthrottle? 😅 May it is stupid...thx
Hi! Do you know of any cheapish PWM controllers that could handle ~60-65V input (12Vx5 Pb batteries) and around ~30A continuous current ?
The ones i've found on aliexpress and the likes only go up to ~55V from the spec sheet.
Little 555 still going strong I see 🙃
Thanks for details 🎉❤❤
Hello this was so informative. I think I have burnt mine. Now I can not control the speed motor starts directly. Could you please guid me with the troubleshooting what should I look first.
I have made a hack video to control the speed via external source. you can learn from it here ua-cam.com/video/ipFxYQkB5uw/v-deo.html
Does this PWM controller offer forward and reverse motor direction ? Does the pot control both directions ?
If the pot is at 12 o'clock does it play forward 100% ?
Hi, I made this video to answer your first question and demonstrated it. the speed of motor is controlled to 100% of duty cycle. Here I have modified so it can be controlled using arduino with PWM ua-cam.com/video/ipFxYQkB5uw/v-deo.html
Use 6 point switch on module output it's simple for forward and reverse
Hi I'm using 10A speed controller with 3s Lithium ion batteries and motor is RS550 PF ,when i increase the speed the controller gets hot especially the motor wire connectors do you know why would that be?
Thank you
Hi, heated wires means the current is very high. Use thicker wires.
@@robojax hi thanks for the update,
Also I used thick wire but still getting hot where the pwm speed controller terminal,
I'm using rs550pf motor for a rechargeable fan ,do you think if the fan blade propeller is heavy?
And will the effects the overheating issue?
Also what if I use 550 motor ?
Nice video and very good test and explnation im ordering 2 right now.
Thank you.
hey, could this be used as a soft starter? im loooking to limit the inrush current on a motor, it should be turned on by a switch on the 12volts line, so the pot stays on the max speed i guess
i have the same situation. I think it will work as a soft starter in our case.
Hello. very good your material. I have a problem, actually it's a question, not really a problem. I want to use this module to dim the headlights of a car. But using, in a car, the ground from the car's power source (battery) is the same as the ground of the load, i.e. the bulbs. This means that between the 2 ground connection screws, of the source and the load, we have continuity. Is it ok to use it like this?
Yes.
very nice video can i use these motor drivers with a remote control
Can I series two of this type to make a 120V pwm motor speed controller? Thank you.
Theoretically it should not work because the MOSFET(source-to-gate) voltage will be reduced and it should not turn ON. But I don't know internal configuration of this module and it might work.
@@robojax thank you.
you are welcome.
Hi , can i use this on reciver and use it as electronic speed controller for rc project ? Both ways?
Hi, yes it can be controlled. The module is for one way control.
Hi Mr Shamshiri. I have 10A version of this module, it works fine But the Schottky diode heats as the ampere raise above 2A! I dismount it and add a huge heatsink to it and I connect it again via 3 wire to PCB because 10A will blow it up definitely! but you use them without any change in your tutorials! what you think? my module has any difficulty or the diode is faulty? (chekar konim? :)
Hi
I am not sure if the diode is faulty, one quick solution would be to put two diodes in parallel meaning anode to a doe and cathodes to cathode and this way the current stress on the diode is reduced to half.
@@robojax thanks for your quick answer. actually when the motor has heavy load the diode starts to heat up. I don't know why. the diode is for making a way for suppressing kickback voltage of motors inductive coils. when I hinder the motor to rotate maybe it increases the kickback effect?! after all, thanks for your advise 🙏
Many thanks good video ..heybi need the diagram and resistor values asap if u have pics of those
Can this controller be useful for a Little dc motor of even less than 1Amp along the usage of appropriate motor like you are using ? Pls
It can control any motor bellow the rating.
Sir kindly advice me what should i use for my 12volts 60 watts air pump for my diy solar sir
I have shown the current. if you don't know how to calculate the current then use this tool eepower.com/tools/dc-circuit-power-calculator/
this controller is good for my electric scooter? plz tell me { nice video}
no one can reply to vague questions like this. I belie scoter can go back and forward. if that is the case, this is rotating only one way.
Hello/6-60v 30A pwm Can it be used for pyrography?/Does it give 10.15 amps without getting tired?can it heat the wire with high current?
please answer my question
Hello, If I have tested it, then you should see it in the video. if you are talking about another module, I don't know how it would handle the power.
Why did the schottky diode get so hot at the 12V 20A test? I presumed that there would be very little flyback diode current with a resistive test load.
Was the test load inductive to simulate a motor? (....... Would the heat come from about 0.2V X 20A X2?, but at some fraction of the PWM cycle?).
Thanks for your clear explanations, the videos are excellent.
either you exceed the 20A current or one of the pins of diode is not soldered properly.
Sir, YOUR test at time 10:00 in your video, perhaps you could be kind enough to say why the flyback diode got so hot at 20A. I thought it would only be active with an inductive load. Your reply is very much appreciated, Thank You.
I just watched the video. But still my previous comment is valid.
Thanks. Perhaps ‘Chinese 20A’ should be considered a maximum of 10A or less? Your tests in the video were very informative.
Sorry for very stupid question, but is it CURRENT OUTPUT REGULATOR? And can I use it to charge a battery with 40a bms (charge 20a) using 100a power supply connected to this?
Hi, no you can't use it. it will kill your battery. Please see my channel on chargers and battery youTube.com/@wattHour
Hi I like your video. What will you recommend me if I want to run a 60 volt 15 amp motor continuously? I want also to reverse the direction of the motion. Thank you
May be this ua-cam.com/video/UzCmynbpAIk/v-deo.html
Sir will the motor maximum speed increase when we use PWM controller or the speed will be same if the motor is connected directly to the battery
The rpm of a DC motor cannot effectively well controlled by just adjusting the input voltage or current, as this will have more impact on the torque of the motor than on the rpm.
A direct connection of a DC motor will have it work at its peak power, so in order to lower the speed we need to lower the average supplied power over a certain period of time, and that is basically what the PWM does: it modulates a continuous DC signal (lets say 12V) into a series of pulses with a certain duration (depending on how high the percentage of the peak power we want to supply to the motor).
A duty cycle of 50% will mean that despite you actually supplying the nominal voltage to the motor, you will only do so 50% of the time, and as such, the motor will only provide 50% of its power.
Answering your question: a direct connection to the battery is the equivalent of having the PWM set up to a duty cycle of 100%. Disregarding any losses of the control circuitry, the maximum speed a PWM can drive a motor is that motor's nominal max speed
pm.
When adjusting speed on a 12v 1A cooling fan there seems to be spots on the pot where output goes to zero say on a couple portions of the sweep of the pot.
May the wiring is loose or connection is bad. Yes it is possible that you might got a bad potentiometer. Here is a hack where you control this motor driver using Arduino board ua-cam.com/video/ipFxYQkB5uw/v-deo.html
Thanks for the testing. I would be interested in knowing why it couldn't handle what it says it can. Where is the faulty design or component? Would it be a simple change or is \the whole design inadequate....other than just not enough cooling.
this is made in China by someone who doesn't know even to name this product or give it a model. Then 100s of other people reproduced it and no documentation. If you are know the components, you can easily draw the circuit but not worth it.
@@robojax plz tell me components name with its value extremely needed
I want to power / control an automobile heater motor. I need power supply and motor to share common ground. On your controller does the input power and output share common ground?
when i went home from work, planning to check it but forgot. Today I added images on the resources page for this module. the link is in description but here for you robojax.com/learn/arduino/?vid=robojax_PWM-20A and I've shown in image that + positive line is common.
@Robojax - Would it be possible to replace the potentiometer with something else to add a remote controlled regulation ? Like IR remote controlled potentiometer or something like? I would really much appreciate if you could help me out with some info 🙏🙏
check the link in description or search for the key word "hack" I have another video on how to use control this. learn how to Search for a Particular video in a channel here ua-cam.com/video/OhkUceBWcHs/v-deo.html
It should be obvious since the original model name of the device is 20A-19S. I think the 19S just indicates the 19 sec time limit at 20A.
I have since bought 12v dc 0.18a brushless 2 wire fan. I bought a pwm controller to vary the speed but the fan did not even turn with the potentiometer in either position. Struggling to get any info even from suppliers. Can you advise what type of controller I need for this type of fan? Thankyou. Great videos.
if it has 2 wires, it should work. something is wrong. Check the resistance between the two wires using Ammeter or ohmmeter. you should get something less than 10Ω. if you get higher resistance, then it is bad. Test is and let me know
There is no resistance just an open cicuit. The fan runs on my bench p.s.u and I am able to vary the speed also by this method. The pwm I bought varies another older fan but not the new one . Do you think that I need to control it with another method?
This is the fan amzn.to/2YJDRcT
This is the pwm amzn.to/2CKw6Kr
Also if I unplug the pot the fan runs at full speed. The pot is 100k. When I plug it back in the fan does nothing with pot turned in either position
Great. Can i add fan for this pwm and use it for utv kid car 12 volt, current 20 - 30 ampe ?
I tested this to answer those questions. if your motor is within the voltage and current shown in the video and it has 2 wires. yes.
Lm317 regulator max voltage difference is 40v, so here it is set to about 7v (for the 555) so max input voltage is 47v. Maybe they used the Lm317HV which has a 60V in-out so it can be driven up to 67v.
bro, please replay, i have 44watt dc led, can i dim that led with it? i dont know the led is 12v or 3v or 24v. but i know it gives output of 43watt.
You need to know the voltage. Otherwise how can you power it up? You need to find the current (ampere),from voltage using the powers (watt) here is formula P=V*A. Or A=P÷V. Yes this can dim it if it is within the range of this module
Hi, the speed controller on my little mig welder died, the motor is 24vdc, could this board work ok with the power being cut on an off every time the feed trigger being pulled, hope you can help, thanks k
Hi, it should work. all devices should be turned ON and OFF.
@@robojax hi, thanks, so if i had the potentiometer set to just say, number 3 i could cut the power in and out, and it would turn the motor at that speed, great ill give it a go,
And hello from Ireland :)
i've got the same module and the both mosfets are ypi7575 and the regulator is lm317t.
Thank you for sharing.
Wil they work for till 50, 60V of dc motor
Can I use it for dimming 12v led stripes ? Will it have camera flicker?
Yes it will dim it. The flicker depends on camera and how it records and the PWM frequency this module uses. so I don't have both information. you would have to try and see.
Great video
I would like to run a 12vdc gear motor off a joystick and be able to independently change the speeds of forward and reverse. Is this possible? If so could you point me to a video or diagrams? Thank you
I have shown that this can control motor in one direction. To pick a motor driver, beside the voltage, the current or power is need to be known. Search channel as I have tones of videos on motor driver and using Arduino.
@@robojax I will do that thank you!
Ahmed, I want to run a RC car with this that will carry around 10-15 kg weight around, so for 4wd (4 Wheels with total 4 DC motors) so what do you suggest, I need 5amp current for each motor, so is there a way I can attach all 4 motor wires (but I see only 2 sockets for motors + and - on this pwm module) how can I achieve that ? How many max motors can this 20amp pwm module allow me to connect and run at once ? Pls assist Ahmed, thanks for your efforts
Hi, I came so many time on this comment and did not understood it. so here I am replying now. if you connect 2 or motor motors, you would connect them in parallel to have the same voltage. you can also connect them in series. but keep in mind that they all will run together. in terms of current, I have shown how much this module can handle and I don't remember it. when you connect 4 motors, the total current is divided by 4. so each motor get 1/4 of the current. I hope I've explained it.
Hello sir, I had a ESC controller for bike, Can I used this controller ? Thank you sir
If your motor has two wires , then yes
Hi thank you for your video. Could you please help me understand why some PWM controllers cause extra noise in the motor?
I have tried 3 different PWM controllers for a DC fan motor and 2 of them cause some kind of noise when operating at lower duty cycle.
Thanks
Hi, each motor has a threshold pwm value which can start running. when it is below that value it will start making noise. the noise is from turning ON and OFF. you can find it experimentally and always set that value as zero value.
How long can I have it running 12v and 10 I liked your explanation
I believe If you get the same module, it should work for days. I don't know . test it in a safe environment before putting it into practical use for safety reason.
would the PWM be hotter or cooler if you set it at a lower speed?
this not about hot or cool. PWM makes devices work efficiency. may be I did not understand your question.
can we use arduino pins instead of potentiometer to control speed of motor wirelessly
I am reading your comment after 8 hours. you should not have waited. Always check description of each video. you will be surprised. or should have searched my channel. I've made video for that.
Hi, im using the same controller to drive a dc motor, my question is can i change the potentiometer for a 5v hall effect foot pedal?
Am i right in thinking the input voltage to the Potentiometer is 5v? then Earth and signal out? So a 3 wire 5v hall effect foot pedal should be able to control the output of the controller the same as the pot?
Thanks alot, and great video.
hi, I am not sure about the Hall effect pedal you are using. But hall effect should be a "Switch" meaning it just Turns ON or OFF it doesn't got through difference values between 5V and 0V. It it does, then it should work fine.
Plz I want to help me
I have two same this module but output voltage same input voltage no change when I turn potentiometer
Can u tell me what problem
Thanks for the great tutorial, what if we want to drive a motor in both directions (control the direction). I have watched your XY-1250 and these controllers can be controlled via arduino, can we somehow use 2 of these controllers to control a DC motor in two directions? Because normal BTS7960 drivers wont hold >10A motor for few seconds.
You are welcome. The best thank you for me is to subscribe to my channel.
BTA7960 can run motor greater than 20A here ua-cam.com/video/PUL5DZ9TA2o/v-deo.html
Here is another module ua-cam.com/video/UzCmynbpAIk/v-deo.html
@@robojax Thanks alot robojax.
I have the same question. For a 90V 3.5A DC Motor. You can implement an H Bridge with 2 relays but normal ones can handle up to 30V DC, so I accidentally burned them... Using solid relays may be an option but is much more expensive.
I wonder if connecting 2 drivers to the same motor is possible (with diodes?)
What is the size of the pot ... I bought the same pwm potentio b100k ... But the pot didn't work ... I used 24volt input so the voltage couldn't be adjusted ... It only reads 24volt the output, please help me mr.. Thanks :D
I have explained it that this is controlling the motor using PWM. in PWM the voltage stays the same. it does not change. it is the fast turning ON and OFF of the voltage called duty cycle that causes the motor to speed up or slow down. So the voltage should be the same as input or a little lower like 0.5 to 1V lower.
Sir, can i use this module in my kids ebike it has 18v dc motor and can i connect throttle with its potentiometer will it work?
it can work with up to 60V motor. If the motor needs less than 20A, then you can use this.
Hi, i tried to use it with 24volt 250watt motor with two 12 volt 9 amp baterries( 24 volt total) but the Fuse went off immediately. what should i do? how can i make it work.?
You must have connected the wiring incorrectly. 250W ÷ 24V = 10.4A. This 10.4A is nothing for this module.
Could I drive one of those from an RC receiver output instead of the variable resistor?
Not directly. RC receiver has PWM signal. but if you modify this module, it is possible.. the 555 has output, and if you disconnect the output of the 555 from the input of MOSFET and connect the output of your receiver, it might work. You would have to see the circuit of this module. I did not pay attention to the circuit for modification purpose.
@@robojax Thank you.
can we connect 3 or 4 controller device with load in one variable resistor
learn from this video ua-cam.com/video/ipFxYQkB5uw/v-deo.html
The circuit change output voltage or not?
Can i use for limit baterry charge max current without change the voltage?
this is PWM (pulse width modulation) controller NOT a voltage regulator. You need a CC or constant current regulator that can control current. #robojax_constant_current
At the end you tested 36 volts, but you said nothing about it... I was thinking about using this with a 36v Led. would that be possible?
Yes. As you can see the title, you can use up to 60V.
excelente y perfecta explicacion aunque no hablo inglés tentendi muchas gracias.
You are welcome. I am glad you understood.
I want to buy DC motor speed controller, Please share the link where i can buy it, i shall be very thankful to you
please check the description of video. I added the link.
hello sir!!!!!!!!!!! does this module boost voltage? i have 12-24 V dc motor. but my supply is 12v only(9ah battery). can i run motor at 24 v with this module?
Hello, no it does not. but if you connect 24V at input you can control 24V motor with this.
@@robojax thanks for your valueable reply sir
you are welcome.
I have that kind of module i used it on my hho generator but the mosfet and the schottyy its getting hot when reaching 4amp. With 12vdc and with higher current (10A) the volage is also going drop into 10vdc.. Can i parallel using 2 pwm module in paralell the input and output. For better performance??
if both moth have exact voltage, yes you can connect them in parallel.
@@robojax thank you so much
you are welcome.
Please tell me what should be the supply adaptor rating which i want to connect to the circuit ...........if i want to regulate 3 ,12 v 500mA dc fan..... please reply...??🙁
Hi, the supply is mentioned in the title "10-60V" . But this is very powerful like 40 times of what you need. (for one fan) you may get this ua-cam.com/video/inUOVV0LnoQ/v-deo.html which is much cheaper. Make sure it has heat sink.
Can I use this as a driver for a 12v car ignition coil ? If so would I need to add a resistor? If so what size and where ? Many thanks
exactly what are you trying to do? the car ignition coil needs 12V and electronic switch. When the switch goes OFF, it generates 12kV to 24kV (12000V to 24000V). this device just controls the PWM of 12V.
@@robojax hi thanks for the reply. I was planning on using it so I could create hv sparks . Would this not work for that ? Because iv already ordered it lol
Also it's not for use in a car it's for experiments .
Yes it would but it is very high current and will be very dangerous and I advise against using it for that purpose.
Sir can I put ecycle throttle on it instead potentiometer?? Sir please reply
what is a throttle? it is a variable resistor(pot) then yes. please send me the link to the throttle product page so I look at it.
It's very convincing and thanks for sharing
You are welcome. I have another video on how to control this using Arduino ua-cam.com/video/ipFxYQkB5uw/v-deo.html
What will happen if the input is 29 amps.. do you have any suggestion for speed controller with this range?
Perhaps you mean what happens if you connect a load that needs 30A? It will heat up and if not cooled with fan, it will die.
29 amp.... 220v ❤
Do you know if the voltage across the POT matches the supply voltage ? I am looking into using a 0-10v input signal for one of these for linear control with PID
I have not looked into reading any internal values.
I do not think the voltage across the pot is supposed to match supply voltage, those small potentiometers(100k?) Would burn up if hooked up to a 240 watt power source
@@robojax Good video thanks. Do you have a schematic of this PWM Driver. I want not to control it by 50KOhm Poti, i want to controll duty--cycle PWM out by analog Signal 0-10V. Is it possible to manipulate the board to use it with 0-10V controll signal instead the potentiometer. Regards Peter from Germany.
Hi, excellent video, with a well done analysis. would you like to raise this scheme? it seems to be very simple and very functional and the best, it works. I would like to try to assemble one of these. Thank you.
Hi, not worth making it as it is very cheap. if you build it yourself, it would cost you 2 or 3 times more.
@@robojax Thanks for the answer. I live in Brazil, everything here has exorbitant prices, these values you entered are not practiced here, we pay 4 to 5 times more expensive, and I have all the components for the controller assembly. Looking through the photos, I managed to raise the scheme. I would like to confirm that everything is correct, and component values are missing.
Apakah ada rangkaian untuk motor 90 volt dc 10 ampere???
Hello, can we control the speed of pmdc motor rated for 12volt, 120w used to run sewing machine...
if the motor is DC, then use this module. Or get another speed controller. if it is AC, then AC speed controller are also available.
how many amps the motor draws with vs. without pwm at low rpm (start and stop)?
to know the amount of current, I presented the test results with 100% duty cycle of PWM. when duty cycle is 0%, it is so low, we can neglect it. so what the video to get the answer.
Any idea which mosfets are being used in this board?
Please watch the video without escaping. You have not watched the video fully. I have explained them all. Also please look under the video in the description. I have provided all the datasheets for components which I have explained in video.
Can you make a video about arduino mega connect with a keypad and lcd, by the value entered by the keypad it runs a motor driver (MD10C) that is connected to a brushless DC motor (BLDC)
I am not sure if I can do it as I am very busy and have tones of other items to be done.
It would be very interesting
Hola tengo una pregunta de cuantos amperios es la fuente de poder que tiene que mover los motores de 12v o mas
Hole depende del motor algunos motores necesitan 0.1A, algunos necesitan 1A o 10A. Cuando compre un motor, asegúrese de comprender este valor.
Can I connect 210-220v in 20A DC 10-60V PWM Motor Speed Controller from input power
this module doesn't care about the input or your converter. just DC from 10V to 60V is fine.
Thank you
What is the maximum input for this module?
can i give 110VDC input
the input is the same as the output. I mentioned and it is in the title of video.
@@robojax Help me,
I have a 110vdc supply, how can I make this module capable of receiving 110vdc?
Very good. Thank you.
Welcome!
Hello
What about directions?
You didn't talk about direction?
I tested and shown and when connecting the wires I mentioned how to determine the direction
With due regards I need the cicuit diagram of the above 20 amp pwm motor speed controller
no schematic for this. you would have to see the components and draw it yourself.
Can I use this madule as a step down converter?
Hello, your question show that you have not even watched 3 minutes of the video. I have shown every details of this module. So please watch to get the answer.
@@robojax you're wrong.I did whatch it again with too many ads.but I didn't find any thing about diffrence or comparison between pwm motor controller and buck converter.am not expert in electronics but it should be some diffrence between them.so tell me when exactlydid you say about it?
Can one use this for a Ryobi 18v 200w BLDC motor?
The title says "DC Motor". Brushless motors need 3 wires to work. This is 2 wire for the motor.
hi all. if you conect in input voltage 6 volt. can give a power for a 775 motor??
Have you purchased and have it in hand? Test it. The rest I have tested the input minimum, if not then in the title I said 10v is minimum
ok thanks
Could I have 10 of these units in parallel, fed a single voltage stablised PWM from an Arduino, supplying 24v( maybe 36v) to a 24v truck starter motor,for an electric motorcycle project,200 amp motor controller is £250
if all of them are controlled by same Arduino, and the same power supply. it should work. yes. Make sure to test each separately to see if the output voltage of them are the same. if voltage are not the same, then you will waste energy. good luck
Can I use this pwm board 24 volt 250 watt ebike motor
Hell, all the questions have been answered in the video. Even the title says the voltage and current. I have spent so much time prepared this so all your questions answered. if you want to control it with other devices such as Arduino, I have a lot a hack for this. the link is in the description.
You didn’t reply?
Hi plz respond fast , extremely needed .
Can you tell me resistors and capacitors value ? Plz reply fast
I don’t know why you need it but capacitors values are Not readable . It is so cheat that if you try to build or repair it it will cost more.
Dear brother I want install one pwm on my car hho unit 12V 20 A running time 24 hrs ampian temp 40 C please advise best way I am in India if it successful looking for 100 unit thanks Simon
you should get higher current rating like 30A to be safe specially running 24h/day and at 40°C. I have got another video but that is for 60A ua-cam.com/video/a6LLbJtnPPA/v-deo.html eBay would your best starting point. Do not start 100 units. Test first 2 or 3 types devices for at least 2 days and then come to conclusion. All ratings on eBay is based on manufacturer rating which requires adequate cooling.
Can use it like buck converter?
NO. the output is always whatever the input is. The speed is controlled using PWM which does not change the voltage but rather the duty cycle.
Where oscilloscope I can buy to start with ? Thank you
sorry I did not understand. Where? or which? I assume it has nothing to do with this module. if your question is "where" , then eBay, AliExpress or Amazon. if which then it is big question. it depends on how much you want to spend. perhap from $50 kit to $50,000
@@robojax thank you for reply, yes the question is not related to that video. But I want to know what are the parameters or criteria I should consider when I need to buy an oscilloscope.
because this modules works and if you want it only for this purpose, then get cheapest oscilloscope it will do it.
@@robojax any recommendations?
good review
Thank you.
Bô điêu toc nay chay pin 2000mah đc hk ad and minh co thê nôi điên 220v vô đc hk
Tôi đã sử dụng google dịch và nó không có nghĩa gì cả. Nó nói "điên 220v". Bây giờ sử dụng các từ đơn giản để google có thể dịch nó. Tôi sẽ phát lại. Nhưng 2000mAh thì "mah" là dung lượng pin chứ không phải động cơ. Hãy làm cho nó rõ ràng để tôi hiểu. Nhưng tôi có thể nói với bạn điều này, tôi đã giải thích mọi thứ mô-đun này làm. Nếu bạn xem cẩn thận và không bỏ qua, bạn sẽ nhận được câu trả lời của mình. cảm ơn. Ahmad hình thành Canada.
Can I use for 24v 250w motor
I have the same question
Hi! I would need the electronic scheme! Tanks you!
Hi, Why would you? If you try to make it, it would cost you more. they sell it very cheap like this. If you need it then do google search for the module, get high resolution images and draw the diagram.
very descriptive video
Good to hear that. Thanks. For anything good you see from others, ALWAYS say "Thank you" like I did to you.
❤
Can we use it with arduino to control pwm.
Yes you can if you know how. I will look at it. Just add it to my "to do " list.
I have same question,, and still not get answerd..
Can you hook 500w motor to this?
I presented the current and it works with 10V to 60V. 500W is not a clear number. you need much more information to get exact capacity of the motor. Search online with result from this video and your motor and you will find out.
@@robojax that motor works on 12v so current is around 40A.
But i need to slow down rpm.
So will it fry pwm controller on 50% ?
Nice sir
thank you.
hi sir i am run haverboad motor how to hall sencer connect plz reply
Hi, can’t be just explained in simple text
Hello, thanks for sharing your reviews on these. I have a 60a version of this with a knob. I'm trying to find a way to use a 5vdc PWM signal from my computer to control this module instead of the knob. Thanks if you have any insight.
here I have it ua-cam.com/video/k13iTmvPtUU/v-deo.html and more like this for smaller modules
नमस्कार श्री मान् आपका यह विडियो तथा आपका समझाने का तरीका बहुत ही अच्छा लगा, मुझे 24 वोल्ट 20 एम्पियर डीसी मोटर का कंट्रोलर की जरूरत है,क्या यह सही है तो कैसे कहाँ मिलेगी व किमत भी बताएं,
मेरा वाट्स ऐप नं 9887026936 है
धन्यवाद
Bro,kalau pakai thorttle gas bisa gk.?
ini untuk mengendalikan motor DC. Jika kontrol throttle adalah motor DC, maka ya ini dapat digunakan.
Thank you Bro,saya sudah beli produk pwm seperti itu.
sy pen nyoba potensiometer nya di ganti pake throttle ebike bisa g ya xixixi