[Amps] overvoltage

[Dr. William J. Schmidt, II]

Transorbs.  Tell me which MOSFET and I'll tell you which transorb to use.

Sincerely,

Dr. William J. Schmidt, II  K9HZ
Trustee of the North American QRO - Central Division Club - K9ZC

Email: bill at wjschmidt.com
WebPage: www.wjschmidt.com

"If computers get too powerful, we can organize them into a committee; that 
will do them in."  -- Bradley's Bromide


----- Original Message ----- 
From: "Borislav Trifonov" <bdt at shaw.ca>
To: <amps at contesting.com>
Sent: Sunday, June 05, 2005 7:39 PM
Subject: [Amps] overvoltage


> How do I overvoltage protect a MOSFET?  I tried those gas discharge
> arrestors, but they don't cut off fast enough after they ignite.  MOVs
> are too slow, and avalanche diodes can't take much dissipation.  I'm
> using the MOSFETs to switch AC signals, and inductive loads make voltage
> spikes, so occasionally it fries a MOSFET.
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