Re: MOT Voltage Doubler

To: tesla-at-pupman-dot-com
Subject: Re: MOT Voltage Doubler
From: Jim Lux <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
Date: Mon, 21 Sep 1998 18:15:16 -0600
Approved: terryf-at-verinet-dot-com

Tesla List wrote:
> 
> Original Poster: Mike Nolley <mnolley-at-mail.slc.edu>
> 
>         It doesn't double the current-- no.. but it does double the
voltage.  In
> the first half cycle the source charges the capacitor through the diode
> (correct me if I'm wrong) and in the second half cycle the capacitor
> discharges in conjunction with the source current, effectively doubling the
> voltage.  I'm not sure why this doesn't produce a pulsed effect-- perhaps
> someone could enlighten me (us?) about the finer points?
>                 -MIke

Your explanation of the functioning is correct, and yes, it DOES produce
a pulsed effect. Your microwave oven actualy cooks with a 50% duty cycle
(at best). However, cooking food is a pretty non-critical RF
application, and the thermal time constant is much, much longer than a
half cycle, so as far as the food is concerned, the heating is
continuous.