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Power Supply Cookbook, 2nd Edition
book

Power Supply Cookbook, 2nd Edition

by Marty Brown
June 2001
Intermediate to advanced content levelIntermediate to advanced
280 pages
10h 38m
English
Newnes
Content preview from Power Supply Cookbook, 2nd Edition
part in the isolated feedback design and they must be accommodated in the part
value calculations. Optoisolators, for instance the C
trr
, can vary over a range of
300 percent, which may necessitate a potentiometer to be added to the circuit.
Some optoisolators are sorted by their manufacturers to a narrower C
trr
range,
but it is rare and not liked by them. The voltage reference should also be a
temperature-compensated variety, such as provided in the TL431.
The issue of output accuracy from unit to unit usually requires that the ref-
erence used be trimmed to two percent variation or less, and the resistors within
the resistor voltage divider be one ...
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Publisher Resources

ISBN: 9780750673297