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RE: [Amps] Re: Step-start calculation

To: "'jeff millar'" <wa1hco@adelphia.net>
Subject: RE: [Amps] Re: Step-start calculation
From: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Sat, 20 Nov 2004 15:00:20 -0500
List-post: <mailto:amps@contesting.com>

> Thanks for the numbers, its educational. The program assumes mains 
> resistance of zero.  Since you know the value, it adds to primary 
> winding resistance.
> 
> Results at 240V in, 2.2M RL, parallel 2 x 93 uFd= 186 uFD
>     Vout = 4435V
>     Ipk turnon = 70A
> 
> Loading the output (knowing what you like to run)
>     RL = 2K   Vout = 4050 to 3985V (65V ripple)
>     RL=1.5K  Vout = 3960 to 3878V (82V ripple)
> That's a nice supply. 

Problem is the rectifier is a Full Wave Doubler - not a Full Wave 
Bridge.  Effective capacitance is 93/2 = 46.5 uF.  

73, 

   ... Joe, K4IK 
 

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