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How to solve output error issues in ADuM4223

Question asked by Webber.Tsai on Aug 17, 2016
Latest reply on Aug 24, 2016 by RSchnell

HI

I am using ADuM4223ARWZ in Full bridge dc-dc converter for one of my application.

When ADUM4223 Via input PWM pulses (100ns), observed VOA output waveform.

I found  ADuM4223 VOA output waveform is not equal to VIA waveform, The VOA output waveform is high, lasted 1uS

as shown in snapshot.

refer the circuit schematic attached

This happens actually when i am loading my converter.

Kindly help to solve the above issues.

VDD

CH1=VOA

CH2=VIA

CH3=VIB

CH4= MOSFET Current

 

 

Circuit

Attachments

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