Using Stepper Motors as Generators (Rectifiers, KBP 307 IC, & Alternatives)
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- Опубліковано 5 жов 2024
- Stepper motors are great for their efficiency and high voltage produced with low torque. It is not always intuitive for the non-electrically-inclined to produce something a current that is more usable. In this video, I detail the workings of stepper motors, why they make better generators than brushed or BLDC motors, and how you can easily create a rectifying circuit using either 1N4007 diodes or the KPB-307 IC.
Product Links:
1N4007 Diode:
amzn.to/3YhkRRE
www.aliexpress...
KPB-307:
amzn.to/3HwEK1m
www.aliexpress...
Stepper motors I like to use:
amzn.to/3BuEM6a
My free STL files available on Thingiverse:
www.thingivers...
#generator #steppermotor #windmill #turbine #rectification #rectifier #fullbridgerectifier #arduino #voltage #current #engineering #diy #electricalengineering #kbp307 #1n4007 #1n4001 #diode #circuit #circuitdesign
CORRECTIONS (I will edit this as needed):
- The diode I hold at 2:14 is a 1N4007, not 4001. Both codes are diodes that work exactly the same, but with different maximum voltages and currents.
- When I said "Usually they're touching" at 4:58, I meant that usually the two wires that make a coil pair are adjacent.
Damn I just hope that your channel blows up in the near future. Your content is high quality. :) keep the videos coming
That's very nice of you to say, thank you :) It definitely has been blowing up recently and I could not be more grateful.
Homie you are an OUTSTANDING educator! I am extremely impressed with this video and am looking forward to checking out the rest of your channel. I legitimately want to hang out with you lol, you seem like an awesome person. Thanks for sharing your knowledge.
Thank you for always explaining the stuff everyone already assumes we know!
Man, I'm so happy I found this channel! Educational, easy to follow, and entertaining! What more could you wish for? Keep up the great work!
So sweet of you to say, I really appreciate that. Thank you. :)
Great video! I honestly have never seen anyone explain “bridge rectifiers” so simple. As I was unaware there were half and full bridge rectifiers.
Question for ya: with half bridge rectifiers only utilizing half the AC, is the unused power given off as heat or is it basically just non existent to the circuit?
Dude, excellent. I learned a lot about a lot, and that's saying a lot. Depth and clarity beyond belief.
Hey, thanks! I'm glad it was helpful. :)
it is also possible to use some types of mosfets or transistors or hexfets as diodes, in some cases you can just directly connect 2 leads together, but in general you need some kind of refference voltage which can be a capacitor charged by a normal diode rectifier. the main interesting things about this is that when doing that essentially the mosfet or such isn't a actual diode but opens and closes based on the voltage, and polarity this means you can rectify the voltage with almost no voltage drop or energy loss compared even to schotky diodes.
did forget how examply it worked and with which speciffic components but I originally discovered this working when I designed my own custom type of high voltage transistor which was kind of how I thought a fet would work based on their name, it essentially used static atraction and repeling to work did actually work pretty well.
but also found out I could use them as a diode by setting a certain refference voltage in a capacitor this wan the voltage could go only one direction.
this also translated to work with some kind of mosfet or such but it was long ago so I don't remember exactly anymore what I used for the normal mosfet or such also since back then many parts I used where things taken out of old broken devices. and my custom transistor/mosfet for very high voltage was made from antistatic packaging aluminium foil and tape.
Damn why didn't I find this channel sooner. explained so well that even I understood it 👍
Stumbled across one of your videos and I’ve binge watched quite a few tonight. Lol. Great content. I built a motion sensor rat trap last year using an arduino and some plywood. We had an issue when they tore down a neighbors house. Worked out perfectly. Love this type of content. Thanks
Love to hear it! Thanks!!
This video helped a lot. Been looking for a simple explanation on these topics for ages. Thankyou sir!
Thanks for making this video, that IC is a great short cut! Well Done :)
Do you have a link where we can order up your PCB for the backpack? Thanks for the great content!! Very helpful!
What are you doing with the DC power you're generating with them? What voltage does it produce? I've always been intrigued by the idea of using steppers as generators but never looked much into it. Thanks for the inspiration to dig deeper.
Of course! My plan is to charge 18650 cells, which I will then use to charge my phone. Balcony-sized windmills are blessed if they generate even a few watts. Mine typically produce close to 15v at peak, but is closer to 5v during standard use.
@@christophersfactory So do you just use a variable input voltage converter to get it to the LiPo charging level? I have a bunch of these cheap amazon converters, but I don't know if I should trust them, and also how stable they are with wildly variable input voltage like this.
@@ObsessiveEngineering A good question, I suppose you could hook up a dummy load and a hand-crank and just see how they handle the wildly variable voltage. Personally, I often just use the 7905 linear voltage regulators. Even though they're trash as far as efficiency, it's a small price to pay in exchange for not having your house burn down from exploding batteries 🤣
@@christophersfactory could you do a video on harnessing the power to charge batteries?
Roughly how much current can you expect from a NEMA17?
Absolutely wonderful video. I have a 42D212D Anaheim Automation stepper I would love to make into a generator. I know nothing about electronics but want to try and see if I can get it working. Thanks for posting!
The reason stepper motors are good generators it's because the have a low KV rating. So it's takes a reasonable rpm to get usable voltage out of them. Normal brushless DC motors like the ones used for drones need thousands of rpm before you get a few volts from them.
Thanks for making this video bro much appreciated and great to see a brilliant mind like you taking the time to show us these as we all know how long the acquisition of information takes to be able to do this ❤❤❤❤❤❤❤ and I'm guessing you just learn learn learn 😊
Thank´s, I learned something very useful. great explained.
Could you provide some information on how many watts could a fullbridge rectifier of yours operate maximum?
Also what is the rating of that small chip rectifier?
If you were to make 3 phases, could you connect the discharge of the 3 phases at the end?
Thanks in advance, your video is very informative and thoughtful.
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Interesting idea my friend 🙂
That's it, I'm hooked, you're awesome :)
❤❤❤
Really Good Video Christopher. With this project, how many watts is your DC output? What would one need to produce 800 Watts DC with a parameter of 11-100 VDC, 10A MAX?
the best thing with a bipolar stepper motor is being able to add the rectified voltages together if needed
Good job. Well presented. I get stuck on what type and size capacitor to use for my circuit. Also where to buy as Amazon is expensive. Cheers J
How do circuit boards work? I’ve never understood that green stuff with the little solder connections. Do you have a video explaining when to use them and how to choose? Thanks for these great videos!!!
This would be really helpful to me as well!
I'll thrown in some notes about printed circuit boards (PCBs). These aren't items that are "chosen", rather they are designed by the person creating the electronic circuit specifically for that circuit. Are you familiar with schematics? Do you know how to read a basic schematic? These skills come in handy. Usually, the designer has an idea. S/He makes a list of the components needed, like for example diodes and capacitors, like in this video. Now the designer sketches out how these components are connected, plus how anything that is external to the circuit is connected to it. This sketch is the schematic. The next step is to build the circuit to see if it works (sometimes it does, sometimes it doesn't). To build the circuit, the design can use a breadboard and jumper wires, or s/he can freeform it, like Chris did in his video. Here, the design might have to make changes to make the circuit work, or work better. Once the circuit has been thoroughly tested, and the design is happy, the next step is to create the PCB. If this is a one-off circuit, the designer might choose to use a protoboard, and not a PCB. If the PCB is wanted/needed then the designer goes to his/her computer and gets a CAD (Computer Aided Design) app, like KiCAD. There are options, from open source aps that are free to use, commercial free to use with restrictions, or crazy expensive apps. Once the design has the app s/he captures the schematic into the app. Once that is done, the designer creates the PCB by providing dimensions (size) and other parameters. The software then creates the PCB, but the connections are usually messed up. The next step is to order those connections so that they look nice and don't criss-cross. This is called the routing process. Most CAD apps can do this automatically by simply selecting a command from the menu, but won't always choose the best routing, so it is recommended that in the future when you feel comfortable designing PCBs. For now, just let the software do it. Once that it done, there might be other tasks you might want to perform (too long to present here). Finally, you generate something called Gerber files. These are the files that are sent to the machinery that will manufacture the PCB. Once these files are generated, they are sent to the company that will manufacture the PCB for you. In his video, Chris mentions jlcpcb. This is one of many. I've used this company. The company usually manufacturers a set number of PCBs, maybe 3, 5 or 10. They will not produce just one. Some will charge more, some less. You upload (or transfer) the Gerber files to the manufacturer, pay up, and provide shipping information and in 2 to 4 weeks (varies) you'll have your very own, designed PCBs!
This is exactly what I am looking for. Thank u. So you make One rectifier for each coil? Can't you have just one for all the coils?
Novice question...Why couldn't you operate a stepper as a motor or a generator simply by switching electronic control function? Thanks
thank I going try to make some small wind turbin using some old nema23 motor do you think it will be worth to use some step up converter so the output voltage will be above 14v so I can then plug into a MPPT charge to charge a battery
That was good.. thank you 🙂
Just found your channel.. great material, keep it coming!
hi I'm am after some knowledge and experience when creating generators. I would like to make a wind powered generator for my project at university and need something that will spin quiet freely with little resistance but produce enough to charge a phone or even a power bank. your video was greatly useful to help my understanding of this but I'm still not sure on what to use. Any help would be greatly appreciated.
So each coil has 2 corresponding wires. One positive and one negative. Would you hook up both positives from each coil to the rectifier, and both negatives to the negative part of the rectifier? Or would you need two rectifiers?
You will need two rectifiers :) Because the coils are offset from each other. If they're connected to the same rectifier, their voltages will always cancel out.
@@christophersfactory thank you!
hello, im building a wind turbine, in your opinion, whats the best motor to use as a generator
Awesome thank you for all of the information
What kind of motor should I use for a gravity battery? I was thinking for a bldc or stepper motor but I’m unsure. Which one in your opinion will be more efficient?
Do stepper motors make better generators than regular brushless motors? I tried making a phone charger out of a 12V cooler fan (which I'm almost sure it had a brushless motor inside). The idea was to rotate the motor using my excercise bike for when the power goes out and my phone is low on battery. But I built the prototype and barely got 4V out of it. I needed at least 8 to have a stable 5V by using a 7805 regulator.
Lovely! Well done.
I had to reduce the playback speed to 75% to keep you from sounding like a fast-talking circus barker.
Try watching this video at 75% and see if you agree.
You also inspired an idea for recording such a presentation - a 20 x 24 inch picture of an audience with the camera poking through the center point of the audience image. It could be as simple as an image of a single person's head with the camera poking through 'between the eyes.'
After you watch the video, see if you can guess what inspired me.
Like your stuff, will check out one or two others shortly
Well, I think it was perfect as I sped it up to 1.25% to watch it and it was just right. I do have an electronics background. So good range.
great explanations
Can I put brake to control wind turbine if we are using big stepper motor
Is the shaft hard to rotate ?
from Belgium: I learned a few things but set the speed to 75% :-)
Can you not just Take the Center Pair of the wires and connect them, so the coils generate in series, and then only need one FBR?
Another great video! 😊
Thank you for sharing.
Where do you get your boards made?
I use JLCPCB, but they don't sponsor me yet so I don't recommend them ;)
Jokes aside, apart from the long shipping times, they're awesome. It's usually, like, $2 + $2 shipping for 2 layer boards up to 80x80cm I think? They're pretty good.
Fun fact, you can hack a hard drive stepper motor without a chipset via using 3 pieces of tape on the disks, you can run a brush wire on top of the disk and it will spin if you taped it correctly.
Thank yoooou!!!! :D
this is great, thanks
Of course, glad it helped :)
FULL BRIDGE RECTIFIER!!!
Don't use the cheap geared stepper... the gears will wear really fast and, the center of the windings are still connected to each other after cutting the red wire.
👍🏼
Hello sir