Re: Problem Using a DC Power Supply

On Sun, 10 Jun 2007 02:09:48 -0700, frank_logic@xxxxxxxxx wrote:

I have the following Power Supply http://www.globalspecialties.com/1302b.html

I can adjust the voltage by rotating the knob but I can't seem to do
the same for the current. When I rotate the knob, the current stays at
zero Ampere. Is the unit broken or am I doing something wrong here?

Frank

the current meter only shows what is being drawn from the supply...
you can vary the volts but if nothing is drawing any curernt, then it
will show 0... put a car side-light bulb across the terminals and vary
the voltage - the resistance of the bulb is constant so the current
goes up and down proportional to the voltage - you might like to
google "ohm's law" and "kirchoff's law" coz they will explain
everything everyone has said here.
.

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