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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
(B.31)
The phase boost is proportional to the separation of the zero-pole pair in the
error amplifier, but that is of secondary nature since the error amplifier’s pole
and zero were placed to compensate the worst case zero and pole in the control-
to-output characteristics. The actual location of the zero caused by the ESR,
which amounts to the choice of a vendor and part number, will affect the amount
of excess phase the supply will exhibit. So the designer may have to relocate the
compensating pole if there is any possibility that the excess phase will fall to less
that 30 degrees (-330 degree lag).
B.4.4 2-Pole–2-Zero Compensation
This compensation is ...
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Publisher Resources

ISBN: 9780750673297