Integrated low voltage regulator for high capacitive loads

Details Integrated low voltage regulator for high capacitive loads Integrated low voltage regulator for high capacitive loads

1998-03-27

1999-03-30

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Self-regulating

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

323315, 323316, G05F 326

Patent

active

058893954

ABSTRACT:
An improved, high performance differential voltage regulator for high capacitance loads using a transistor-capacitor that will, while operating with voltages below 5 volts, have wide bandwidth, high current, and loop stability over a to a wide range of output capacitive loads.
The regulator achieves this through first and second control loops coupled to a first one of a pair of differential transistors 2. The first of said control loops sends the output of the regulator to the gate of the first one of the differential transistors while the second of said control loops comprises a control transistor coupled to a transistor-capacitor and to a current mirror transistor controlled by the second differential transistor such that the output voltage may be compared to a reference voltage driving the first differential transistor to generate a differential current and provide differential voltage drives , via a current mirror, to the gate of the output transistor to provide an output capable of driving the gate of the output transistor from ground to voltage thereby providing wide bandwidth, high current, and loop stability to the circuit.

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