Still looking for a Tripp Lite PR-25 (or similar) DC power supply schematic
"Paul P" wrote in
message ...
There are a couple of smoked resistors on the regulator board. I can not
trust the ohm meter reading so I wanted to verify its value. I am trying
to avoid De-engineering the board. Now once the resistors are replace
there may be something else that smoked the resistors too.
Paul.
Paul -
Where are these resistors .. the typical linear supply has low ohm
equalizing resistors across the NPN pass transistors .. and only a few in
the regulation circuit off the LM723 pins .. for example a 1 K is usually
used from pin 4 to the voltage adjustment potentiometer.
gb
|