This one’s not mine, okay? I’ve used the IRS drivers for my brushless controllers without isolation and they seem to work well up to 50A, but for some reason it just makes me more comfortable having an optical barrier in the circuit. Caio May 31, at 5: Shane Colton July 9, at One important thing that would reduce ground noise much in your layout would be to tie the low side FET sources together very closely instead of doing this to the high side FET drains, a less critical point.
The previous design was based on a bit MSPF What I was thinking of doing sometime is modify my firmware to make a dual brushed motor control mode – that would make for a very versatile controller. MA March 26, at 2: Click for full resolution image.
Shane Colton August 25, at Shane Colton April 22, at 1: Hi Shane, I got some question on this circuit. If the brushes get vaporized, I’ll probably switch to sensored brushless, for which I already have a pretty good solution.
Shane Colton: Victor
For now, here’s the full schematic:. Oh, and I was wondering if you had any current sensing as I didn’t notice anything that looked like that? irf3s107
I’m kind of new at this thing. Hi Caio, Thanks for the kind words. Idfs3107 I forget, I want to thank you for posting your brushless controller’s source code a month or so ago – very cool and also very generous of you, Shane! Kevin April 18, at 3: I’ve just entered this universe, even studying electrical engineering, and I’ve started my own board with a gate driver, the HIP, that’s the only thing I had available I haven’t looked at it for a couple weeks now, but I think it’s the version that runs on the 32 bit MCU, right?
IRFS3107-7P MOSFET N-CH 75V 240A D2PAK-7 5pcs
I’ve only tested on the bench supply, but it was able to drive about 25A before alligator clips started melting. I was wondering how further testing went and also if you had a bill of 77 you can post.
I borrowed it for the photo. If anything, I would have expected the FETs to take the heat in that case.
I hope you’ve been able to figure out the issue and get your gate driver working! It would be a very small present compared to all the cool info you share! Kevin April 22, at 6: BTW, I think you could have pulled off making this controller without any isolation and maybe also faster switching speeds thus less switching losses and less parts count.
Hopefully, it will just work and I can plop two of them into the snow scooter to run at 18V-ish. If it survives some more abuse testing, I’ll post the design files so you can try it out yourself.
IRFS 3107-7 reel
Hi Shane, I really like your motor driver. I ask because I have my own controller designed around a 8 bit PIC 18Fand was thinking of having some fun with some of irfx3107 tastier code tidbits from your code.
Well, I made my PCB, with all the gate resistors, reverse diodes coupled with the Mosfets, pull-down resistors attached to gate-source pins, but I’m facing a heating problem in the HIP: Anonymous April 14, at 7: Shane Colton January 24, at 5: Posted by Shane Colton at
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