Power supply circuit

Details Power supply circuit Power supply circuit

1997-04-10

1999-03-16

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

323283, 323284, 323315, G05F 110, G05F 140

Patent

active

058835016

ABSTRACT:
A power supply circuit provided with an operation control circuit to control the operation of an oscillator, a comparator, and a reference voltage generator by generating a pump enable signal. During normal operation, the operation control circuit generates an active pump enable signal to run the power supply circuit and generate a voltage according to a reference voltage from the reference voltage generator, while during standby, the operation control circuit generates an inactive pump enable signal in response to an internal clock signal from a CPU to make the power supply circuit operate intermittently, whereby the power consumed during standby can be reduced and the time for return to the operating state can be shortened.

REFERENCES:
patent: 4344121 (1982-08-01), Weber
patent: 4420700 (1983-12-01), Fay et al.
patent: 5161097 (1992-11-01), Ikeda
patent: 5481221 (1996-01-01), Gariboldi et al.
patent: 5554925 (1996-09-01), Shibata
patent: 5598095 (1997-01-01), Schnaittes

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