Analog multiplier in the feedback loop of a switching regulator

Details Analog multiplier in the feedback loop of a switching regulator Analog multiplier in the feedback loop of a switching regulator

1990-06-29

1991-10-08

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323281, G05F 1575

Patent

active

050557670

ABSTRACT:
An analog multiplier feedforward technique for use in the feedback loop of a switching regulator circuit is provided. The analog multiplier eliminates the necessity for the output of the error amplifier to the regulator circuit to change voltage when regulator input voltage changes, and makes "loop" gain independent of input voltage.

REFERENCES:
patent: 4247789 (1981-01-01), Cate et al.
patent: 4301497 (1981-11-01), Johari
patent: 4651265 (1987-03-01), Stacey et al.
patent: 4731722 (1988-03-01), Conroy
patent: 4837495 (1989-06-01), Zansky
patent: 4940929 (1990-07-01), Williams
Data Sheet, Unitrode UC1854/2854/3854 High Power Factor Preregulator, Nov. 1989.
Data Sheet, LM194/LM394 Supermatch Pair, National Semiconductor Corp., 1982, Linear Databook, pp. 12-14.

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