high speed gate drive for mosfets

From: exxos (exxos_at_home.co.uk)
Date: 10/28/04 

Date: Thu, 28 Oct 2004 22:47:41 +0100

Hi all,

Has anyone got any idea for high speed switching for power mosfets ? a
typical mosfet has like 3,000pf gate capacitance and my driver can just
about cope with 1mhz, but 2mhz my drive wave appears like a sawtooth wave,
so the mosfets never really hit fully on or so, so they heat up like hell...
Theres some small info on using a class C and class E design though I dont
have any experiance in these, I think the class c design is for ham radio
users driving up into the 10mhz range...

If anyone can suggest something to look into then this would help me out...

thanks,
chris

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