Re: Solid State - progress.

To: Tesla List <tesla-at-poodle.pupman-dot-com>
Subject: Re: Solid State - progress.
From: Alan Sharp <100624.504-at-CompuServe.COM>
Date: 12 Jun 96 20:37:03 EDT

Paul

>My plan is to use the output of my push-pull transformer to drive 
>a tuned (150Khz) L-C filter tied to ground. This L-C circuit will then drive
>the 
>primary of my tesla coil magnifier style.

>With the secondary under a load the L will limit the current.
>With no load the Q of the L-C circuit will go high and drive 
>the primary voltage through the roof.

Paul could you explain this a bit more fully - I'm using the output
of my push pull transformer to drive my coil as a magnifier.

toroid
C
O
I
L
l
l
-l
 secondary lll primary--- FETs---PWM
-l
l
Ground

Where does your LC circuit go?

I've been looking at Rob's suggestion for using Schottky
diodes in series with the FET. 10A diodes are cheap,
have a low forward voltage and can handle 200A peak
currents. The low reverse voltage 30-45v doesn't matter
if FET and schottky are in // with a reversed fast
rectifier. Presumably the amount of snubbing can then
be safely reduced.

Alan Sharp UK