Monday, April 23, 2012

Re: [HamBrewers] 30 volt 29 amp PS

 

Fantastic idea. Now how can one manipulate the last smps in series for the 3.8V extra??

73ees,
Pat

--- On Mon, 4/23/12, Aravind Balasubramanian (VU2ABS) <vu2abs@gmail.com> wrote:

From: Aravind Balasubramanian (VU2ABS) <vu2abs@gmail.com>
Subject: Re: [HamBrewers] 30 volt 29 amp PS
To: HamBrewers@yahoogroups.com
Cc: "Sandeep Lohia" <sandeeplohia12@gmail.com>
Date: Monday, April 23, 2012, 12:58 PM



Sandeep. Whats done here is all the 5 v (which usually have atleast 30A op) outputs are connected in series.

Except the bottom most ps all other ps's mains earth pin is left floating. perhaps a small 5 w resistor load is also connected across each 5v / 12v output for kick starting

On 4/23/2012 12:33 PM, Sandeep Lohia wrote:
 
It good idea to isolate earthing, but not complete information is given there, one needs to short green & black wire otherwise it won't kick start. LOL.
One can also play with TL494 feedback with a variable preset. As to change 12V to 13~
EMI filter is another one!!!!!



VU3SXT 73...........



On 22 April 2012 17:24, padmanabhan cattamanchi <PEPINDIA@yahoo.com> wrote:
 
An interesting link for Furono Amps


http://w5jgv.com/tower_of_power/index.htm


73,s
Paddy
vu2pep




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