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Drain wave form Doubt

Posted by: mohan.n2293@gm… on

Hi All,

I have designed a power supply with stack fet configuration,but when i measure the drain current wave from using scope i saw a different waveform ,please see the attached waveform and tell me weather it is correct or any part in power supply need to tune to get perfect waveform.

Files
Drain_WF.png (391.86 KB)

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Submitted by Easy Peasy on 01/19/2018

Without seeing your actual circuit - it is impossible to comment.

Submitted by mohan.n2293@gm… on 01/19/2018

Hi Easy Peasy,

Please find my schematic.
i had measured the drain current by removing drain pin and prepared loop using wire and tested using DC clamp meter .

첨부 파일 파일 크기
Sheet2.pdf (61.32 KB) 61.32 KB
Submitted by Easy Peasy on 01/20/2018

your current waveform looks odd, what are you powering the circuit from?

Submitted by Easy Peasy on 01/20/2018

try using 2 x 1.0 ohm res in parallel in the source to measure the current from ...