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Ask ADUM4136 DESAT fault under ringing condition

Question asked by wei2.liu@ge.com on Mar 16, 2017
Latest reply on Apr 7, 2017 by wei2.liu@ge.com

Dear  Sir / Madam :

I use ACPL-36JT in my Gate drive board design to drive IGBT model; there is DESAT fault problem on switch ringing.

For example: 

my High voltage is 270V;

when switching, The switcher collector Pin can go to -10V; then ACPL-36 make a fake DESAT fault.

 

Could you tested ADUM4136 under this ringing condition?

If there is no fake DESAT fault; I'll replace gate drive chip with ADUM4136.

 

Thanks

Wei Liu

Electrical Design Engineer

GE Aviation Systems

 

T +1 937 204 1357

wei2.liu@ge.com

 

111 River Park Drive

Dayton, OH 45409

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