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SCR power supply (fwd)
From: bmack[SMTP:bmack-at-FRONTIERNET-dot-net]
Sent: Tuesday, January 20, 1998 9:29 PM
To: Tesla List
Subject: Re: SCR power supply (fwd)
Nice thought, but SCR's are way too slow for an RF application.
>
> ---------- Forwarded message ----------
> Date: Sat, 17 Jan 98 22:25:48 PST
> From: Al Syme <asyme-at-idcomm-dot-com>
> To: Tesla list <tesla-at-pupman-dot-com>
> Subject: SCR power supply
>
> To All
> A while back I ran across a book on induction furnaces. In the book was a
> short discussion on using SCR's in a circut like a multivibrator to
> provide power for an induction furnace. The book was vague about the
actual
> circuitry involved but it did allude to a circuit that (1) provided back
> EMF to shut off the SCR and (2) provide a trigger pulse to fire the SCR
for
> the oppsite polarity. I don't know what the upper frequency limit for tis
> type of circut is, but I'm thinking that it may be a way of generating
> power at high enough frequency to make it cost effictive for us coilers
on
> a budget. If any of you have run across this application, any information
> would be helpful.....Thanx Al Syme KG0QJ
>