Start-up circuit for a shunt regulator

Details Start-up circuit for a shunt regulator Start-up circuit for a shunt regulator

2011-06-28

2011-06-28

Sterrett, Jeffrey L (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S274000, C323S901000

Reexamination Certificate

active

07969127

ABSTRACT:
A method and circuit for controlling the start-up of a shunt regulator that uses an error amplifier for normal operation in a linear range of a target value output voltage set by a reference voltage upon circuit start-up clamps the output voltage to a first level value below the target value, next applies regenerative positive feedback independent of the error amplifier to force the output voltage through a range where adverse conditions can occur to a second level value below the target value, and then releases the positive feedback near the target value where the error amplifier assumes control of the regulation.

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patent: 6707280 (2004-03-01), Liu et al.
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