Recent content by HacknMod

It's a custom designed BLDC controller.

Is there any reason why the circuit below wouldn't work?

Above is a motor controller with 3oz copper. The maximum amount of current the motor will draw is 25A which enters the PCB through a connector, then through a fuse, and then is distributed to the rest of the board. The fuse is surface mount and (as you can see in the attached image) has...

Thanks for the input Hardym and Jeremy! The isense is going to the brain board where it's being inputted into the MC33033. I copied this from Jeremy's schematic. See an image of my the MC33033's configuration on my brain board here: http://i.imgur.com/Tb1nD.png - Will this work? Would it be...

Nice story, but can you give comments or suggestions to the files I've posted?

I would be greatly appreciated if someone could answer my BLDC Brawn Board questions. Thanks! Joe

I would be greatly appreciated if someone could answer the questions in my post above. Thanks!

Bump :) Mod Edit: We don't typically "bump" on this board. Please don't make it a habit. Threads carry themselves or not.

I'm using Eagle 6.1.0 - Maybe you're using an older version? I believe I have fully implemented this, but let me know if this is not the case. I think you're just saying I don't need the isolated dc-dc converter? I've spec'd these caps with an ESR of .047 ohms. I think they will work? Do...

I've modified Jeremy's original schematic and taken into account the work done by HardyM previously in this thread. I'm nearly done with the PCB and I'm going to have it fabbed next week. Discussion and eagle files can be viewed here.

I modified an existing BLDC design posted previously on E.S. by Jeremy Harris. I had a few questions regarding the layout that I was hoping someone could answer: 1. Currently, all layers are 3oz copper and my layer stackup is: - Top: VCC_BATTERY, connection from mosfet driver to...

I'm building a self-balancing unicycle and I'm strapping batteries to the outside of the vehicle (in a polycarbinate case). When the vehicle falls over, the only thing protecting the large LiPo's on the side (8Ahr, 6s) is 1/8" polycarbinate and some sort of cushioning material between the...

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I'm building a self balancing unicycle which uses 9v and less than an amp for it's "brain" circuitry. However, I also have a 50v supply which is supplying power to a brushless motor at about 30A. The grounds of the two power supplies need to be connected (of course), but I'm worried about noise...

I have two 6s LiPo packs running in series and I have their balance connectors attached to a PCB (see diagram below). The PCB reads the voltage of each cell in the LiPo pack through the balance connectors. I'm about 99% certain that little to no current actually runs through the balance...