Re: PIRANHA-III Power control? (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 17 Dec 2006 20:43:54 -0700
From: Terrell Fritz <terrellfone@xxxxxxxxxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: PIRANHA-III  Power control? (fwd)

Hi,

At 05:16 PM 12/17/2006, you wrote:
>From: BRIAN FOLEY <ka1bbg@xxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: PIRANHA-III  Power control? (fwd)
>
>Hi, a small inductance on the control input can help a lot with peak
>current, and with a bit of design work can be made to limit the input
>current to a value wanted. cul brian f.

The PIRANHA will automatically limit most of the current to the 40 to 50 
amp level.  The input current and voltage look like this with a varaic.

http://drsstc.com/~piranha/PIRANHA/PIRANHA-3/PIRANHA-III-002.gif

(current is 5X)

All look into the "alternistors" thing....  Seems the same as SG's 
"snubberless" Triacs.  The DK# Q8040K7-ND at 800V 40A $8.56 seems nice ;-)

Even the cheap router control might be fine "as is" in this case.  But it 
would be cool to have a cheap, light weight, high power, non-varaic 
controller that would do "everything".  A modification to the router 
control might be very easy...

Cheers,

         Terry