Low power switching supply circuits and methods

Details Low power switching supply circuits and methods Low power switching supply circuits and methods

1994-06-08

1995-10-03

Stephan, Steven L.

Electricity: power supply or regulation systems

Output level responsive

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

323280, 363 21, 363 97, G05F 1565

Patent

active

054555035

ABSTRACT:
Switching power supplies for low power circuits. Power supplies described and disclosed herein comprise a linear regulator for regulating an input power to this power supply, a flyback regulator with three modes of output control comprising indirect sense feedforward, feedback, and override control. Indirect sense feedforward responds to changes in input voltage. The feedback responds to changes in output voltage with use of both of these wide variations in input voltage and output load can be tolerated. The override control takes over during abnormal conditions such as startup and short circuit. Switching power supplies described herein have high efficiencies and provide efficient power management, especially in low power budget applications.

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Electronics & Wireless World, vol. 95, No. 1641, Jul. 1989, Surrey GB, pp. 651-654, Nattra et al., `10W Flyback Converter` * the whole document*.

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