Constant voltage circuit and method of controlling ouput...

Details Constant voltage circuit and method of controlling ouput... Constant voltage circuit and method of controlling ouput...

2007-05-22

2010-10-26

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S280000

Reexamination Certificate

active

07821242

ABSTRACT:
A constant voltage circuit for converting an input voltage input from an input terminal, converting the input voltage to a predetermined constant voltage, and outputting the converted voltage from an output terminal is disclosed that includes an output transistor for outputting a current corresponding to a control signal from the input terminal to the output terminal, a control circuit part for controlling operation of the output transistor so that a proportional voltage proportional to the voltage output from the output terminal is equal to a reference voltage, and a pseudo-load current control circuit part for supplying a pseudo-load current from the output terminal when detecting that the output transistor is switched off according to a voltage difference between the input voltage and a voltage of a gate of the output transistor.

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patent: 2003-5848 (2003-01-01), None

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