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Demystifying Switched Capacitor Circuits
book

Demystifying Switched Capacitor Circuits

by Mingliang (Michael) Liu
June 2006
Intermediate to advanced content levelIntermediate to advanced
336 pages
10h 24m
English
Newnes
Content preview from Demystifying Switched Capacitor Circuits
Demystifying Switched-Capacitor Circuits
232
conversion effi ciency of this charge-pump topology drops abruptly when the number
of power stages exceeds fi ve.
This performance limitation due to the body effect can be alleviated by using a
cross-coupled voltage doubler, which is the topic of Section 6.3, to boost the ampli-
tude of the clock voltage that is used to drive the fi nal power stage via C
5
[8]. Alter-
natively, this problematic NMOS charge transfer switch and the output NMOS diodes
can be substituted by their PMOS counterparts to compensate the body effect [10].
The reference offers a detailed description of the circuitry.
Furthermore, it ...
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Publisher Resources

ISBN: 9780750679077