Hello sir, I connect my SIG pin (IRF520) and GND pin (IRF520) to the D8 and GND of my arduino uno(supplied by 9V battery). The LED light doesnt light up. But if I connect the SIG pin (IRF520) to 5V(arduino), LED lighted up and dc motor (load) rotates. May I know what is my mistake?
Hello, when you connect signal pin to 5V it means "turn ON the load" so yes it should start the motor rotating. Connect signal pin to Digital pin so you can turn ON ( or HIGH) and OFF (or LOW) to control motor.
Thanks for the test. Unfortunately the IRF520 is not the best choice for the job. To see this, you have to look in the data sheet, item "Drain-Source On-State Resistance". Here you find the on-resistance of 0.27Ohm -but @10V. For 5V or even 3.3V there is no R_DS_on specified at all. With 3.3V V_GS it could bei completely switched off and still in spec. Please compare it e.g. with IRF3708. There the datasheet guarantees 29mOhm @V_GS of 2.8V and I_D 7.5A So this will run even with 3.3V logic. With 4.5V V_GS you get 13.5mOhm @I_D of 12A. So if you redo your experiment with the IRF3709 you will get a voltage drop of about 0.12V an a power loss of about 1W @9A. Much better.
@@@robojax : Yes, I unfortunately bought this "MOSFET button" without reading the data sheet previously. They were advertised to be 3.3V logic compatible. But this is not true and did not work with an ESP8266 reliably in my application. So finally (too late) I read the data sheet and replaced The IRF520 by an IRF3708 which works a treat.
i need to make switch on battery changer its like 10 amps can go higher to say 14 may be still not fully tested but good estimate i bet this unit is to small ? any suggestions
resistor is used to protect the MOSFET. When input is not connected, the resistor keeps the gate at 0V and blocking any noise or oscillation . Read the answer here electronics.stackexchange.com/questions/68748/question-about-mosfet-gate-resistor
Dear Robojax, Thank you for your reply. The MOSFET resistor makes excellent sense. Unfortunately, while the linked page shows the resistor, I could not see one in the video. That is, there seems to be a disconnect, to my eyes, between the video and the linked page. This is possibly only me, and I just may not see that a resistor is really present. In any case, thank you for posting.
Is anyone else having a problem where the mosfet won’t turn off? I’m using 12v and the mosfet only goes from a slightly reduced power on my motor and full power
Thanks, just ordered few pieces. Planning to use it with raspberry pi pico to control electromagnet on gate, should act as access control system. Currently on my protoype I have 2N7000 (made mistake in choosing) and its missing reverse diode (still need to figure out where it should be placed, is it between transistor and GND of magnet or between GPIO and transistor).
Thank you for your videos! I'm a subscriber now and when I can I watch your daily's. I understand how much work it is to make a good video like yours - that is why I don't edit mine! ha ha ha You are very good teacher! Tony
Sir delay is 10 ,MOSFET will operate or not this switching speed,but you give 2000 delay,sir I will give delay is 10 it will be operated or not or It will be switched or not, suppose MOSFET will be fail to operate to delay 10 , which model will be drive to operate this delay
@@robojax Sorry, I used a wrong term. "Fake" is no correct. What I want to say, is that this board is not specific for arduino board (or nodemcu). The problem is the mosfet. In this case wee need a "logic level" mosfet, like a IRL540, not IRF... The best, is to have this board with an IRL540 installed. Logic level mosfet can "all open channel" with "only" 5V form arduino. Apologize.
No problem. When I want to introduce a product, I have to follow what the name says on eBay or AliExpress even if the name doesn't make sense. If I don't do it, people will not find the video. so the I say "Arduino", because many people think it is "made for arduino" or even the title has the word "button" I don' t know why the use the word "button" but I put it so people can find it. thanks
So if I use this IRF520 unit, I dont need to use a relay to switch on off a motor ??? I am still struggling with Motor 12C DC 360PA, it draws so much current, power supply stop working, and I use voltage regulator which get too hot. Please advice any solution to drive the Motor 360PA / B 12 V DC ? Thanks !
Yes, relay can’t control speed. This however turns on and off. Pay attention this turns On in one direction. You gotta watch my video on actuators to see how it is controlled or push and pulled.
Schematic diagram have Vin1 Vin2, GND In1, GND IN2, GND 2, module not have this. Have: Vin, V+, V- VCC, GND, You made the video in the beating of the game.
See the module here www.fingerpointengg.com/wp-content/uploads/2018/03/0-24V_Top_Mosfet_Button_IRF520_MOS_Driver_Module_for_arduino_Compatible_with_UNO_MEGA_2560_1087028331.jpg and see schematic here robojax.com/learn/arduino/?vid=robojax-IRF520-MOSFET
Hi Robojax, thanks for the great explaination video. I would like to ask if the external power supply for this IRF 520 module is isolated from the arduino? If my 12v and 280mA DC motor doesn't have a diode, will it damage my arduino?
Hi, I always explain all features and nothing is left . If this has that feature then I should behave explained it. I don’t remember if this item as isolated.
I have two mosfet switches controlling 12v solenoids and I have them going on and off at 20 ms so it is fast But after a few second the Arduino crashes, if don't have all the components close to the Arduino then it is ok but as I need them close it crashes so its so sort of electric interference Is there anything I can do
Howdy I /am thinking of use this module for a crankshaft sensor. It uses three wires, a 13volt supply a signal wire and a ground. How would the signal wire be attached to this module. Would it be connected to the positive or negative terminal.
Hello, The signal needs to be from zero to 10V. So it should be connected to +. In our case I used 5V output from Microcontroller (Arduino). I have explained it in the video and shown the datasheet. So watch the video again so you can safely use it.
It is all about power. You can reduce voltage and boot current and vice versa. But you can’t get free power. Input 10w , you can’t get 11w or even 10w, you will get 9.8w or so.
there is no speed limiting elements on the module. I am not sure what speed you are looking for. I have provided the datasheet of IRF520. Have a look at it.
Actually I want to use this module in boost converter... In boost converter drain is connected to diode and inductor.. here which terminal should I consider as drain and source.
Can you please explain, the red and black load wires connects to load, where are the other red and black wires connected to ?, I mean the two on the screw connector block ?
hello robojax , i want to ask. can i use the mosfet to control the charging process of three stack battery ? im currently want to do project on control or switch the distribution of battery using mosfet . please response me
You can do it with mosfet but not with this module. This is just switch. It is either OFF or ON. so you can't control current with this. I belive you need linear control. This can have only PWM.
it depends of the current. I have provided the link to the datasheet. Find out the cooler current and voltage and make sure it it within the range of this IRF mosfet.
Pretty good video explaining almost everthing. The only thing I couldn't understand as a layman is what was the power supply. Am I to assume that the power supply is coming from the 5v out of the Arduino because it sure didn't look like it was. That part needs better clarity because you never see what power suppy that red wire is running to.
Hi i'm trying to do a shock system i bought arduino this mosfet module and a 2*9v 2w transformers i'm using Vcc signal as 12v for mosfet module and using this load polar for the transformers but i cant take any signal from transformers can you help me?
you can't connect directly from transformer to MOSFET. Transformer has AC and mosfet needs DC. here we talk about load like light or motor or another device.
no you can't . on the high side, the Gate voltage needs be higher the source pin. when you have load of 12V on the source, then gate needs 12V+GSv, if GSv=5V, then you need 12V+5V=17V. for that reason you need gate driver chip which will take care of this for you.
Yes it would. I have mentioned in the video the Drain-Source (the two main pin of the MOSFET) will have about 27m Ohm which will have less than 0.05V drop.
You are not driving the gate with 10 volts, so all those datasheet numbers you mentioned are irrelevant (and wrong by an order of magnitude) I think? The max you can get out of this when driven by 3.3v to 5v is 1 to 2 amps only - and probably making a lot of heat.
so you are saying we don't have enough voltage at the gate? if so then lower voltage at the gate means lower current and lower current means less heat. Am I missing something?
@@robojax "enough" depends on your application, but for an IRF520, TTL (5v or 3.3v) is not enough to turn it fully on. Heat comes from resistance, not current, as far as I know - I didn't see a datasheet that listed that, but you can infer (from the max current, because V=IR) that it's 5 to 10 times higher resistance at TTL levels than it is at 10 volts (the test value used on the datasheet). Some other guy mentioned that he had to swap the IRF520 for an irf3708 (which is designed for 5v signals) to get his project working. Do you have a test meter, and something that can use 6 amps? If yes, it would be a fun test. See how much current the 6amp thing draws when the arduino switches that on, then, disconnect the arduino and use the device source to turn the FET on and check again (and, I guess, see how hot it gets when you do that - my guess is it will be heaps hotter at 1 amp (semi on) than at 6 amps (fully on))
I have provided the link to the page here details and code it bit.ly/rjx-667 and ther I have the datasheet and schematic. at 4:08 I have mentioned resistance of DS (drain-source) and on datasheet page 3 fig.3 the DS current goes to 4A at 5V GS voltage. I might make another video on this module as I have now better equipment. to get 6A you will need 5.5V. On the same page it show that the DS resistance Fig. 4 depends on the junction temperature. So if you keep it cool it wastes very less from mΩ to Ω.
@@robojax in tutorial just control on/off only. let say i want to control on/off along with speed motor control, can i put the code for one pin only as : digitalWrite(control, !digitalRead(control); anaologWrite(control, motorspeed); variation of motor speed will use another code separately (not mention here). I just ask can use different instruction of code for one pin only as above code. thank you
Hello friend. Your information is very valuable. I am using similar circuit to drive a 1 watt LED from ATTiny85 and A MOSFET but somehow the Mosfet is not getting triggered by the 5V PWM signal from the ATTiny85... Where can I be going wrong??
Hello, I am glad you found it valuable. If you've got the 5V version of Attiny85, it should work. Unless your module has different roisters at the gate or wiring is incorrect. I suggest test it with UNO making sure it work then try it with other board.
@@robojax I first tested with UNO and migrated to ATTiny85 just as it is with the PWM from the ATTiny85 to the Gate pin...... the LED +ve to 5V directly...... and the LED -ve to Source pin...... and the Drain to -ve. A 10k resistor between Gate and Source. It worked with UNO but fails to work with ATTiny85...
Robojax, Thank you for your video. I have a quick question for you. In your code / arduino, you connect to pin 8....and in turn, you send power from the power supply to the load if pin 8 is HIGH, and disconnect power if pin 8 is LOW. My question is...does this device allow for variable voltage across your load using PWM from arduino (say pin 3 instead)? Take the following example, if you provide 20V as your input power...and you PWM the MOSFET SIG, can you provide variable voltage to your load based off the PWM 256-count from arduino if connected to say, pin 3? Meaning, 20V/256-count = 0.078V resolution? If this is not possible to do with this device, do you have any component suggestions that would allow me to do just this? Thank you so much.
Hello, Arduino Uno only ouptputs HIGH=5V or LOW=0V. When you send PWM, it outputs 5V and 0V waveform what has only 5V for high and 0V for low. For that purpose you will need Digital to Analog Converter.
@@robojax Robojax. Perhaps I didn't ask you properly. When speaking about the arduino's digital pins, I understand they can be set to LOW (0V) and HIGH (5V). But I also know that the digital pins 3,5,6,10, and 11 on arduino uno can be set to PWM, meaning you can pulse 5V on / off for different duration / duty cycles. My question is, do you have suggestions in how PWM can be used to vary the power from power supply to an attached motor using the MOSFET? I am not sure how a "Digital to Analog Converter" would fix this. Thanks for the help!
Thank you. I don't have it. Pleases send it and I will make video for free (for now). I can be contacted via my website robojax.com on the contact page.
Yes, of course, Vcc is always the supply pin. But here we just switch on the MOSFET with the voltage difference between SIG and GND and we don't have to supply the power to some logic level circuit. What power supply are you referring to? I don't see the Vcc on your schematics. Vcc is *not* Vin. Did you check with the ohmmeter if Vcc is connected to something?
Post your schematic in this website snag.gy/ once you did, you will have a unique URL (web address), please past the address of you schematic image here( reply to this msg) and I will help you.
The MOSFET will get hot if it is acting as a resistive load because the gate voltage isn't high enough to turn it fully on. Are you applying 5V to the gate?
the mosfet IRF520 has rise time of 30ns (33MHz) and fall time of 20ns (50MHz) and the "turn on delay" and "turn off delay" is very low. This should work.
Thanks for this very useful demo. One question though. Am I to understand that the pin labeled as "Vcc" between the "SIGNAL" pin and "GND" pin (to be connected to Arduino) is not used at all? Is that pin connected to anything at all? If not, then why is it there? Thanks for the response... Please keep up the good work!
Yes. VCC is not connected. You can use it IF and ONLY IF your motor is very small and needs less than 200mA and voltage is of motor is 5V, then you can connect the VCC to supply voltage to the motor. The whole purpose of this module is to control a powerful motor with Arduino and Arduino does not have that kind of power.
Hi, I want to use the pin signal as input to the Arduino. How can I do that? Basically I want to input 24v to the mosfet and check with Arduino if it is getting the signal or no
the "S" or signal pin it INPUT and not output. If you want to check the "Signal" pin with arduino, then you need to know how to read voltage. I have another video that explains something else, but it has full details of voltage divider that you can use for this purpose. ua-cam.com/video/FaoKzi7tgME/v-deo.html
When driving an inductive load like a motor you should have a reverse biased diode across load to prevent large spikes across MOSFET when turning OFF.
Thank you for letting me know. Absolutely essential. I completely missed that. May be I should remove this video and correct and upload it again.
I am surprised the board did not include the diode!
I have updated the schematic in the page where coded is downloaded which shows diode is needed when inductive load is connected.
@ @@robojax : The MOSFET survived because of the intrinsic body diode. Please refer AN-1005 of IR and in the datasheet the item "avalanche".
See 1:49
What's the minimum voltage you have to supply to VIN and GND? I tried using two AA batteries and it didn't seem to work.
Is it possible to drive igbt using this module?
Depends on the IGBT but yes generally you could.
GAY😈😈😈😈
Mosfat varebal suplay with rdino
Push incrish and dircress
can I use this one with arduino : TK11A60D
Hello sir, I connect my SIG pin (IRF520) and GND pin (IRF520) to the D8 and GND of my arduino uno(supplied by 9V battery). The LED light doesnt light up. But if I connect the SIG pin (IRF520) to 5V(arduino), LED lighted up and dc motor (load) rotates. May I know what is my mistake?
Hello, when you connect signal pin to 5V it means "turn ON the load" so yes it should start the motor rotating. Connect signal pin to Digital pin so you can turn ON ( or HIGH) and OFF (or LOW) to control motor.
Thanks for the test. Unfortunately the IRF520 is not the best choice for the job. To see this, you have to look in the data sheet, item "Drain-Source On-State Resistance". Here you find the on-resistance of 0.27Ohm -but @10V. For 5V or even 3.3V there is no R_DS_on specified at all. With 3.3V V_GS it could bei completely switched off and still in spec. Please compare it e.g. with IRF3708. There the datasheet guarantees 29mOhm @V_GS of 2.8V and I_D 7.5A So this will run even with 3.3V logic. With 4.5V V_GS you get 13.5mOhm @I_D of 12A. So if you redo your experiment with the IRF3709 you will get a voltage drop of about 0.12V an a power loss of about 1W @9A. Much better.
You are welcome. This is sold like this and I had not choice to select the MOSFET.
@@@robojax : Yes, I unfortunately bought this "MOSFET button" without reading the data sheet previously. They were advertised to be 3.3V logic compatible. But this is not true and did not work with an ESP8266 reliably in my application. So finally (too late) I read the data sheet and replaced The IRF520 by an IRF3708 which works a treat.
My friend , what should i use for more high load , my project needs 12v 6amp load to be controlled with PWM from Arduino. Which MOFSET/Module I use
Just search my channel for PWM and you will find them
Thank you for a well done explanation of this MOSFET Switch. I now understand how it works and I can begin building my IO Extender around it.
You are welcome. I am pleased hearing that. Good luck with your projects.
Thank you, very useful.
You are welcome!
i need to make switch on battery changer its like 10 amps can go higher to say 14 may be still not fully tested but good estimate i bet this unit is to small ? any suggestions
if you attach heat sink, it will be enough. I have shown the datasheet mentioning the rated current.
Can I connect 9w dc led bulb with this module and giving 230v supply
this module is just electronic swatch for DC. it will not reduce the voltage. so NO.
In your linked page you use a 1K resistor between GND and SIG-why?
resistor is used to protect the MOSFET. When input is not connected, the resistor keeps the gate at 0V and blocking any noise or oscillation . Read the answer here electronics.stackexchange.com/questions/68748/question-about-mosfet-gate-resistor
Dear Robojax,
Thank you for your reply.
The MOSFET resistor makes excellent sense.
Unfortunately, while the linked page shows the resistor, I could not see one in the video. That is, there seems to be a disconnect, to my eyes, between the video and the linked page. This is possibly only me, and I just may not see that a resistor is really present.
In any case, thank you for posting.
You are welcome.
Is anyone else having a problem where the mosfet won’t turn off? I’m using 12v and the mosfet only goes from a slightly reduced power on my motor and full power
Can I control with analogic comand and have proportional output?
"analogic" command?
very good
YOU TUBE - Robotizado con CD 4017 , NE 555 Pilotos Andre
Thanks, just ordered few pieces. Planning to use it with raspberry pi pico to control electromagnet on gate, should act as access control system.
Currently on my protoype I have 2N7000 (made mistake in choosing) and its missing reverse diode (still need to figure out where it should be placed, is it between transistor and GND of magnet or between GPIO and transistor).
Thank you for your videos! I'm a subscriber now and when I can I watch your daily's.
I understand how much work it is to make a good video like yours - that is why I don't edit mine! ha ha ha
You are very good teacher!
Tony
You are welcome. Please to hear that. You are welcome to my channel.
Sir delay is 10 ,MOSFET will operate or not this switching speed,but you give 2000 delay,sir I will give delay is 10 it will be operated or not or It will be switched or not, suppose MOSFET will be fail to operate to delay 10 , which model will be drive to operate this delay
if the delay is important to you, I have provided the datasheet. look at and see the switching time of gate in the datasheet.
@@robojax kk
Can this mosfet combine using touch sensor tp223? To be relay
as I explained it, module just needs HIGH or LOW so you can connecting anything that output HIGH or LOW to it .
Great.. thx u..
Thanks for the great informational video this is way easier than building my own MOSFET
You are welcome.
Nice motor! Where did you get that Monster Motor? Thanks for your efforts in making these videos. I subscribed!
You are welcome. Got the motor from Princes Auto (Oshawa, Canada) www.princessauto.com/en/
thank you so much for the video. Its the only video on you tube that explain that module by the way. Thanks again.
You are welcome. I am please to hear that.
This is a fake board for Arduino. Need a IRL LOGIC LEVEL MOSFET not IRF...
who determines fake and real? It works and test showed that.
@@robojax Sorry, I used a wrong term. "Fake" is no correct. What I want to say, is that this board is not specific for arduino board (or nodemcu). The problem is the mosfet. In this case wee need a "logic level" mosfet, like a IRL540, not IRF... The best, is to have this board with an IRL540 installed. Logic level mosfet can "all open channel" with "only" 5V form arduino. Apologize.
No problem. When I want to introduce a product, I have to follow what the name says on eBay or AliExpress even if the name doesn't make sense. If I don't do it, people will not find the video. so the I say "Arduino", because many people think it is "made for arduino" or even the title has the word "button" I don' t know why the use the word "button" but I put it so people can find it. thanks
@@robojax Good, Italian, Chinese.
So if I use this IRF520 unit, I dont need to use a relay to switch on off a motor ??? I am still struggling with Motor 12C DC 360PA, it draws so much current, power supply stop working, and I use voltage regulator which get too hot. Please advice any solution to drive the Motor 360PA / B 12 V DC ? Thanks !
Yes, relay can’t control speed. This however turns on and off. Pay attention this turns On in one direction. You gotta watch my video on actuators to see how it is controlled or push and pulled.
Schematic diagram have Vin1 Vin2, GND In1, GND IN2, GND 2, module not have this. Have: Vin, V+, V- VCC, GND, You made the video in the beating of the game.
See the module here www.fingerpointengg.com/wp-content/uploads/2018/03/0-24V_Top_Mosfet_Button_IRF520_MOS_Driver_Module_for_arduino_Compatible_with_UNO_MEGA_2560_1087028331.jpg and see schematic here robojax.com/learn/arduino/?vid=robojax-IRF520-MOSFET
Hi Robojax, thanks for the great explaination video. I would like to ask if the external power supply for this IRF 520 module is isolated from the arduino? If my 12v and 280mA DC motor doesn't have a diode, will it damage my arduino?
Hi, I always explain all features and nothing is left . If this has that feature then I should behave explained it. I don’t remember if this item as isolated.
I have two mosfet switches controlling 12v solenoids and I have them going on and off at 20 ms so it is fast But after a few second the Arduino crashes, if don't have all the components close to the Arduino then it is ok but as I need them close it crashes so its so sort of electric interference
Is there anything I can do
it seems when the solenoid is connected, the voltage to Arduino drops below 5V and it turns off.
Thank you. Does it will work if I connect a constant current source of 350mA in Vin to drive high power leds?
I have tested different amount of current load. I believe it was more than 5000mA.
Howdy I /am thinking of use this module for a crankshaft sensor. It uses three wires, a 13volt supply a signal wire and a ground. How would the signal wire be attached to this module. Would it be connected to the positive or negative terminal.
Hello, The signal needs to be from zero to 10V. So it should be connected to +. In our case I used 5V output from Microcontroller (Arduino). I have explained it in the video and shown the datasheet. So watch the video again so you can safely use it.
Hi!, what's the module maximum frequency?:))
Hi, you made me go to the description and look at video. it has been explained and demonstrated. please watch. I have to watch to give you answer.
Hi, can these Mosfets control A.C. 240 volts ?
NO. the title says DC load.
@@robojax Do you know anything about Triacs ?
If parrell 2 itf520 would you double out put current with less heat?
Yes it would.
if I use power supply 2.5 AMP, can this unit boost power up to 3 Amp ?
It is all about power. You can reduce voltage and boot current and vice versa. But you can’t get free power. Input 10w , you can’t get 11w or even 10w, you will get 9.8w or so.
Im so newbie for this, may i know the value of the supply for this mosfet module ?
I just looked at the video and shown the datasheet and said what is pier supply voltage
This module can be used for high-speed switching of strobe led?
there is no speed limiting elements on the module. I am not sure what speed you are looking for. I have provided the datasheet of IRF520. Have a look at it.
Actually I want to use this module in boost converter... In boost converter drain is connected to diode and inductor.. here which terminal should I consider as drain and source.
If you want to use it as MOSFET, yes you can. Thank you for keep watching the ads and not skipping them. it will help me a lot.
Can you please explain, the red and black load wires connects to load, where are the other red and black wires connected to ?, I mean the two on the screw connector block ?
I have shown full schematic and every bit has been explained. Or see the page where code is you will see more details.
hello robojax , i want to ask. can i use the mosfet to control the charging process of three stack battery ? im currently want to do project on control or switch the distribution of battery using mosfet . please response me
You can do it with mosfet but not with this module. This is just switch. It is either OFF or ON. so you can't control current with this. I belive you need linear control. This can have only PWM.
Hello. Where can i find that dc load? I need one to test nimh batteries. Thank you.
Hello, you can see electronic loads here amzn.to/3n8XxTp
Test trên mach3
I want to control one cooler (on/off). IRF520 is a good solution?
it depends of the current. I have provided the link to the datasheet. Find out the cooler current and voltage and make sure it it within the range of this IRF mosfet.
Hello, Signal pin should connected with PWM input, VCC should connect 5v, right? I see the demo no VCC connected ?
Hi, follow the link to he page where I have the code. You will find the schematic diagram.
Pretty good video explaining almost everthing. The only thing I couldn't understand as a layman is what was the power supply. Am I to assume that the power supply is coming from the 5v out of the Arduino because it sure didn't look like it was. That part needs better clarity because you never see what power suppy that red wire is running to.
that is your power for the motor or load.
if you missed the matter of voltage, then please watch again.
Hi i'm trying to do a shock system i bought arduino this mosfet module and a 2*9v 2w transformers i'm using Vcc signal as 12v for mosfet module and using this load polar for the transformers but i cant take any signal from transformers can you help me?
you can't connect directly from transformer to MOSFET. Transformer has AC and mosfet needs DC. here we talk about load like light or motor or another device.
Which mosfet to use to be good for consumers up to 10A?
I don't remember something to just work with 10A, but ZN44 can work up to 30A www.vishay.com/docs/91291/91291.pdf
Can we use this as HIGH SIDE SWITCH ?? please reply
no you can't . on the high side, the Gate voltage needs be higher the source pin. when you have load of 12V on the source, then gate needs 12V+GSv, if GSv=5V, then you need 12V+5V=17V. for that reason you need gate driver chip which will take care of this for you.
@@robojax Thanks for the reply... do you have any such video on that topic in your channel... Kindly send me the link
no I don't, however it is on my list and I will publish it. stay tuned and subscribe to be informed.
@@robojax waiting
Hello!
Can you control RGB Leds strip with 3 of these MOSFETs?
PS. Great Video, Kind Regards from Poland ^^
yes you can. I have shown how much current this can handle. If your LEDs don't exceed the maximum current, yes you can use. Ahmad from Canada.
How many times this MOSFET will be on off in one second and one minute?
look at dalay() inside the loop() I have explained it.
Sir i know you give the delay (2000),but i will give the delay (100) ,tell me tha mosfet will operate this switching speed or not?
will this device output the same voltage as supplied to it? For example, if I supply 12v should I expect it to output 12v?
Yes it would. I have mentioned in the video the Drain-Source (the two main pin of the MOSFET) will have about 27m Ohm which will have less than 0.05V drop.
I will remember this video. You inspiring me 🙏
Glad hearing that. I hope you've subscribed as your subscription help my channel grow. Thanks
You are not driving the gate with 10 volts, so all those datasheet numbers you mentioned are irrelevant (and wrong by an order of magnitude) I think? The max you can get out of this when driven by 3.3v to 5v is 1 to 2 amps only - and probably making a lot of heat.
so you are saying we don't have enough voltage at the gate? if so then lower voltage at the gate means lower current and lower current means less heat. Am I missing something?
@@robojax "enough" depends on your application, but for an IRF520, TTL (5v or 3.3v) is not enough to turn it fully on. Heat comes from resistance, not current, as far as I know - I didn't see a datasheet that listed that, but you can infer (from the max current, because V=IR) that it's 5 to 10 times higher resistance at TTL levels than it is at 10 volts (the test value used on the datasheet). Some other guy mentioned that he had to swap the IRF520 for an irf3708 (which is designed for 5v signals) to get his project working. Do you have a test meter, and something that can use 6 amps? If yes, it would be a fun test. See how much current the 6amp thing draws when the arduino switches that on, then, disconnect the arduino and use the device source to turn the FET on and check again (and, I guess, see how hot it gets when you do that - my guess is it will be heaps hotter at 1 amp (semi on) than at 6 amps (fully on))
I have provided the link to the page here details and code it bit.ly/rjx-667 and ther I have the datasheet and schematic. at 4:08 I have mentioned resistance of DS (drain-source) and on datasheet page 3 fig.3 the DS current goes to 4A at 5V GS voltage. I might make another video on this module as I have now better equipment. to get 6A you will need 5.5V. On the same page it show that the DS resistance Fig. 4 depends on the junction temperature. So if you keep it cool it wastes very less from mΩ to Ω.
is there other way to change direction on coding with out change polarity of motor?
you will need different hardware. Search for motor in my channel . Here is how to find Specific UA-cam Video in a channel bit.ly/findUA-camVideo
@@robojax in tutorial just control on/off only. let say i want to control on/off along with speed motor control, can i put the code for one pin only as :
digitalWrite(control, !digitalRead(control);
anaologWrite(control, motorspeed);
variation of motor speed will use another code separately (not mention here).
I just ask can use different instruction of code for one pin only as above code. thank you
Hello friend. Your information is very valuable.
I am using similar circuit to drive a 1 watt LED from ATTiny85 and A MOSFET but somehow the Mosfet is not getting triggered by the 5V PWM signal from the ATTiny85... Where can I be going wrong??
Hello, I am glad you found it valuable. If you've got the 5V version of Attiny85, it should work. Unless your module has different roisters at the gate or wiring is incorrect. I suggest test it with UNO making sure it work then try it with other board.
@@robojax I first tested with UNO and migrated to ATTiny85 just as it is with the PWM from the ATTiny85 to the Gate pin...... the LED +ve to 5V directly...... and the LED -ve to Source pin...... and the Drain to -ve. A 10k resistor between Gate and Source.
It worked with UNO but fails to work with ATTiny85...
Great explanation, can I use a IRF520 with arduino as a two way switch?
Thank you. What this can be used as DC switch. But not two way. The current can enter one way and enters the other way.
Robojax,
Thank you for your video. I have a quick question for you. In your code / arduino, you connect to pin 8....and in turn, you send power from the power supply to the load if pin 8 is HIGH, and disconnect power if pin 8 is LOW. My question is...does this device allow for variable voltage across your load using PWM from arduino (say pin 3 instead)?
Take the following example, if you provide 20V as your input power...and you PWM the MOSFET SIG, can you provide variable voltage to your load based off the PWM 256-count from arduino if connected to say, pin 3? Meaning, 20V/256-count = 0.078V resolution?
If this is not possible to do with this device, do you have any component suggestions that would allow me to do just this? Thank you so much.
Hello, Arduino Uno only ouptputs HIGH=5V or LOW=0V. When you send PWM, it outputs 5V and 0V waveform what has only 5V for high and 0V for low. For that purpose you will need Digital to Analog Converter.
@@robojax Robojax. Perhaps I didn't ask you properly. When speaking about the arduino's digital pins, I understand they can be set to LOW (0V) and HIGH (5V). But I also know that the digital pins 3,5,6,10, and 11 on arduino uno can be set to PWM, meaning you can pulse 5V on / off for different duration / duty cycles.
My question is, do you have suggestions in how PWM can be used to vary the power from power supply to an attached motor using the MOSFET? I am not sure how a "Digital to Analog Converter" would fix this. Thanks for the help!
I have that module rebranded as velleman
this is brand-less. Everyone is making in their homes.
Your videos are great. Could you do a video on the GTGM02 relay board?
Thank you. I don't have it. Pleases send it and I will make video for free (for now). I can be contacted via my website robojax.com on the contact page.
i saw a lot of your tutoral, thank you for explaining. where did you get the electronic load you are using?
You are welcome. The electronic load is sold on eBay and AliExpress and I have got video on that ua-cam.com/video/-kI7OtTHd18/v-deo.html
can i use this for a solenoid valve? how to wire this on a solenoid valve?
Yes you can. Your solenoid is a load. I have shown how to connect load. Don't forge the diode to protect the mosfet.
Where does that Vcc pin lead? The one that is between SIG and GND.
that is VCC. VCC always refers to the power supply. Check the schematic I have drawn in the page where code is.
Yes, of course, Vcc is always the supply pin. But here we just switch on the MOSFET with the voltage difference between SIG and GND and we don't have to supply the power to some logic level circuit. What power supply are you referring to? I don't see the Vcc on your schematics. Vcc is *not* Vin. Did you check with the ohmmeter if Vcc is connected to something?
i dont have module i designed the module but the mosfet is getting heated up
can you suggest the reason.
Post your schematic in this website snag.gy/ once you did, you will have a unique URL (web address), please past the address of you schematic image here( reply to this msg) and I will help you.
The MOSFET will get hot if it is acting as a resistive load because the gate voltage isn't high enough to turn it fully on. Are you applying 5V to the gate?
Hey man can you suggest me mosfets that I can use at 1 MHz?
the mosfet IRF520 has rise time of 30ns (33MHz) and fall time of 20ns (50MHz) and the "turn on delay" and "turn off delay" is very low. This should work.
Nuhun
sawangsulna.
Supparsss
amigo muy bueno tu explicacion .. quisiera saber de cuanto es el voltaje de entrada del modulo mosfet??
De nada. He explicado el voltaje de entrada a las 01:57 y luego a las 07:11
thanks u r best
Most welcome
Too many ads.
I have a course on Udemy were you can learn all this without ad. here UA-cam puts ad because it is free to you.
is that module can be used for PWM?
Yes it can. I will make video on that.
@@robojax thank you very much!👍
You are welcome. Ahmad from Canada
Where is this video with pwm @robojax
Thank you Very much.
You are welcome.
which software is this
The code is written in Arduino IDE from Arduino.cc and the schematic is done using EAGLE both are free software.
@@robojax thanks
gj bro
good review
Thank you
Thanks for this very useful demo. One question though. Am I to understand that the pin labeled as "Vcc" between the "SIGNAL" pin and "GND" pin (to be connected to Arduino) is not used at all? Is that pin connected to anything at all? If not, then why is it there? Thanks for the response... Please keep up the good work!
Yes. VCC is not connected. You can use it IF and ONLY IF your motor is very small and needs less than 200mA and voltage is of motor is 5V, then you can connect the VCC to supply voltage to the motor. The whole purpose of this module is to control a powerful motor with Arduino and Arduino does not have that kind of power.
Hi, I want to use the pin signal as input to the Arduino. How can I do that?
Basically I want to input 24v to the mosfet and check with Arduino if it is getting the signal or no
the "S" or signal pin it INPUT and not output. If you want to check the "Signal" pin with arduino, then you need to know how to read voltage. I have another video that explains something else, but it has full details of voltage divider that you can use for this purpose. ua-cam.com/video/FaoKzi7tgME/v-deo.html
i tried but i don't receive any voltage