|[AMRadio] PW Supply|
John Coleman ARS WA5BXO
wa5bxo2006 at pctechref.com
Sat Dec 2 20:41:14 EST 2006
It may be the only path to ground for the power supply and measuring the
voltage across it may be the way to measure current from the power supply.
A 10 ohm resistor with 1 volt measure across it represents 100ma current.
This is common practice for the way I measure power supply current.
BTW I found this really neat site with some good info on power supplies
Hats off to Tony, I0JX
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Jack Schmidling
Sent: Saturday, December 02, 2006 7:12 PM
To: Discussion of AM Radio in the Amateur Service
Subject: [AMRadio] PW Supply
I am having some quality time with my new supply and have lots of
questions about things I do not understand.
First one is, this is a choke input with a pair of 4mf's across the
output of the choke and a monster 100k bleeder.
What bothers me is that there is a 10 ohm, many watt resistor between
the negative side of the caps and ground.
What is this for?
PHOTO OF THE WEEK: http://schmidling.com/pow.htm
Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver http://schmidling.com
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