« previous next »
Pages: [1]

Author Topic: IRF640N as INJFET anyone?  (Read 8837 times)

Offline PeepPaadam

  • Sr. Member
  • ****
  • Posts: 250
  • BHP: 8
IRF640N as INJFET anyone?
« on: March 03, 2009, 06:48:28 pm »
Here in Wiki someone claims to use those with great success but there's no details how to exactly use them. Here's the link: http://www.vems.hu/wiki/index.php?page=MembersPage%2FGergelyLezsak%2FFlyBack

Do you have to have power-flyback/30V transinet diode etc still in place or not?

IRF640N's are cheap and they would be very easy to use.
Logged

Offline MWfire

  • Hero Member
  • *****
  • Posts: 721
  • BHP: 35
Re: IRF640N as INJFET anyone?
« Reply #1 on: March 03, 2009, 08:46:31 pm »
I did 6cars with irf640n without any problem.
I allway use flyback.
Logged

Offline GintsK

  • Hero Member
  • *****
  • Posts: 1257
  • BHP: 50
Re: IRF640N as INJFET anyone?
« Reply #2 on: March 03, 2009, 11:18:10 pm »
Low-Z also?
What voltage flyback?
Logged

Offline MWfire

  • Hero Member
  • *****
  • Posts: 721
  • BHP: 35
Re: IRF640N as INJFET anyone?
« Reply #3 on: March 03, 2009, 11:57:49 pm »
Quote from: GintsK on March 03, 2009, 11:18:10 pm
Low-Z also?
What voltage flyback?
yes, two cars with lpg(0.9ohm, 4A for open, 1A for staying open). 0.4V when pwm is activate, 30V when injector must close.
Logged

Offline PeepPaadam

  • Sr. Member
  • ****
  • Posts: 250
  • BHP: 8
Re: IRF640N as INJFET anyone?
« Reply #4 on: March 04, 2009, 12:43:00 am »
Could you be more specific? Do you use just the 30v diode on the flyback lead and no add-on board power-flyback with Low-Z?
Logged

Offline MWfire

  • Hero Member
  • *****
  • Posts: 721
  • BHP: 35
Re: IRF640N as INJFET anyone?
« Reply #5 on: March 04, 2009, 01:00:15 am »
Logged
Pages: [1]
« previous next »