Help for brushless dc card

Thread Starter


Joined Oct 20, 2010
Hi all,

First thanks for your previous helpfull advices :) .

340V and 15V power supply work fine.

Now , third step in order to use my brushless milling machine, - I hope of course .....

I'd like to get advices from experienced members about the following draft; in fact , i got the initial drawing and replaced components.....

Surely mistakes,of course.....

A question about powering hall sensors:

In MC33035 datasheet, pin 8 ouput is 6,2 reference voltage for these items.

I added 5V power supply with 7805 for hall sensors ,and also for a power on led on casing, is this a good idea?

Second question:

What power needed for IGBT resistors, 1/2 ,1 or more watt? is for MC33035 , MC33039 , FOD3120 and MEA1509SC

Schematic is the draft made with Kicad.

Numérisation0003-modif-1FINAL.jpg is the initial drawing.

Thanks a lot as usual.