[Amps] Step-start Calculation Problem:

[Phil Clements]

Subject: Re: [Amps] Step-start Calculation Problem:



> There is another factor which must be considered: The amount of
> capacitance at the output of the full wave rectifier.  The
> transformer/rectifier will try to charge it to full voltage in the
> first half-cycle and that will cause the greatest part of the inrush
> current.

So true, Bill.
A step-start device is not just to keep the transformer from going 
"thunk" when powered up.
It also protects the diodes and any other current sensitive components 
in the circuit. 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