comment on my pcb design !

[andy55]

Hi group,

I'm slowly converging towards a prototype for an IRMCK201 based AC servodrive. see:
http://www.cnczone.com/forums/showth...3&page=6&pp=15

If anyone has lots of experience designing pcbs and especially power electronics, I'd appreciate some feedback.

Are 100mils traces wide enough for peak currents of up to 16 A ?

What clearance would be recommended for peak voltages of up to 200 VDC ?

anything else that needs to be considered ?

TIA

[JRoque]

Hello Andy, I don't have lots of experience but I don't think that trace is wide enough to carry 16A. Here's a calculator to help you figure it out: http://www.desmith.com/NMdS/Electronics/TraceWidth.html
As you can see, your PCB should be 2oz copper thickness and traces about 300 mills with 60 mills of clearance. Personally, when in dealing with that kind of power, I've opted for a jumper wire instead.

JR

[andy55]

Thanks for the link!, the 16A was peak of a sinewave current so RMS is closer to 11A, which would indicate around 180mils traces, that's hopefully doable on my board.