Author Topic: Checking FET's and IGBT's  (Read 8853 times)

Offline gox

  • Full Member
  • ***
  • Posts: 198
  • BHP: 6
Checking FET's and IGBT's
« on: March 07, 2009, 08:10:18 pm »
How can i check for dead fets and igbt's with multimeter?

Tnx

E30 2.7 - VEMS,KKK K27.2,Schrick,1bar

Offline MWfire

  • Hero Member
  • *****
  • Posts: 721
  • BHP: 35
Re: Checking FET's and IGBT's
« Reply #1 on: March 07, 2009, 09:10:07 pm »
Measure resistance between drain and source(2. and 3. pin). If fet is good, than resistance is high(more than 1Mohm).

Offline gox

  • Full Member
  • ***
  • Posts: 198
  • BHP: 6
Re: Checking FET's and IGBT's
« Reply #2 on: March 07, 2009, 09:36:58 pm »
Tnx ;) i`ll chek it up and replace the dead ones

Does this counts for IGBT's too?
« Last Edit: March 07, 2009, 09:42:35 pm by BMW 325i »
E30 2.7 - VEMS,KKK K27.2,Schrick,1bar

Offline MWfire

  • Hero Member
  • *****
  • Posts: 721
  • BHP: 35
Re: Checking FET's and IGBT's
« Reply #3 on: March 07, 2009, 10:18:58 pm »
yes.

Offline z0tya

  • Sr. Member
  • ****
  • Posts: 252
  • BHP: 11
Re: Checking FET's and IGBT's
« Reply #4 on: March 20, 2009, 09:08:03 pm »
Can I test the output pin of igbt with dvm or led with serial resistor?

Offline rob@vems.co.uk

  • Hero Member
  • *****
  • Posts: 3115
  • BHP: 49
    • VEMS Forum
Re: Checking FET's and IGBT's
« Reply #5 on: March 20, 2009, 09:21:20 pm »
I use an LED driven from the +5V supply into the IGBT.