[Amps] Step-start Calculation Problem:

[Radio WC6W]

On Sat, 20 Nov 2004 09:31:21 -0600 "Phil Clements" <philk5pc at tyler.net>
writes:
> 
> Subject: Re: [Amps] Step-start Calculation Problem:
> 

<snip>

> Observing the H.V. meter upon power-up will tell us 
> when the correct delay has been applied for any given set of P.S. 
> components.
> 
> (((73)))
> Phil, K5PC
> 

Hi Phil & the Step Start Set,
   I've been using a SS circuit that is controlled by the output voltage,
connected through a suitable divider, to a TL431 which drives the SS
relay.   Using this method,  the circuit "knows" when a suitable delay
has elapsed.

  The TL431 may drive up to a 100 mA relay coil directly.   An ancillary
PNP transistor can increase this capability as necessary.

73 & Good morning,
   Marv  WC6W





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