[Amps] Source wanted for HV switch-mode power supply

[Paul Decker]

The addition of a control loop would be helpful with the output filter 
capacitors, since it will compensate dynamically for the 120Hz ripple on the 
output, thus reducing the capacitance requirements on the output side. 


>> Agreed.   The feedback likely isn't required, and since the output is at 200Khz, square wave, less output capacitance is required than a conventional 60/50 Hz design.  Simply increas the output capacitence, or even use a small PI output filter.   Actually, the PI output filter for W9QQ's design was mentioned in a follow on correction to the original article. 



Paul Decker (KG7HF) 


----- Original Message ----- 
From: "Alex Eban" <alexeban at gmail.com> 
To: "Paul Decker" <kg7hf at comcast.net>, "KD7QAE" <KD7QAE at ARRL.NET> 
Cc: amps at contesting.com 
Sent: Thursday, May 21, 2009 5:11:51 AM GMT -05:00 US/Canada Eastern 
Subject: RE: [Amps] Source wanted for HV switch-mode power supply 

The addition of a control loop would be helpful with the output filter 
capacitors, since it will compensate dynamically for the 120Hz ripple on the 
output, thus reducing the capacitance requirements on the output side. 
Ale        4Z5KS