Jump to content


Photo

connecting powerful IGBTs in-series


  • Please log in to reply
2 replies to this topic

#1 Igneous

Igneous

    Intermediate Member

  • Full Member
  • PipPipPip
  • 13 posts

Posted 05 September 2003 - 02:27 PM

Has anyone an experience of connecting powerful IGBTs in-series to use them @ higher voltage than rated one??? (for example 400A 1200V). There are big problems with voltage drop distribution in transient modes caused by non-simultaneous turn-on and -off times... What can u advice me?

#2 marke

marke

    Posting Freak

  • Moderator
  • PipPipPipPipPipPip
  • 2,651 posts
  • Gender:Male
  • Location:Christchurch, New Zealand

Posted 05 September 2003 - 08:42 PM

Hello Igneous

A large part of the secret is in the design of snubber circuits across each switching device that will reduce transient voltages due to differential switching times.

Best regards,
Mark.

#3 vst1

vst1

  • Members
  • Pip
  • 1 posts

Posted 24 March 2006 - 08:17 AM

do you mean to say using 1200v igbt to control 2400v dc link? then i have seen drives in which high voltage devices used in series (4 igbt in series.)do you need more info?




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users