Voltage generation circuit

Details Voltage generation circuit Voltage generation circuit

Filed on

2006-02-28

Date issued

2006-02-28

Examiner

Laxton, Gary L (Department: 2838)

Patent Class

Electricity: power supply or regulation systems

SubClass

Self-regulating

SubSubClass

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

Other Related Categories

C327S540000, C365S226000

Type

Reexamination Certificate

Status

active

Patent number

07005838

Description

ABSTRACT:
A differential amplifier is used to determine the level of an output voltage of a charge pump circuit, and is operated in the voltage follower mode with a reference voltage being an input thereto for charging a capacitance element with a resultant output voltage of the amplifier circuit. Subsequently, a voltage to be compared that corresponds to the output voltage of the charge pump circuit is compared with the voltage stored in the capacitance element to generate an output signal by the differential amplifier. According to this output signal of the differential amplifier, the charge pump operation of the charge pump circuit is selectively activated. A power supply circuit is provided which stably generates an internal voltage at a desired voltage level.

REFERENCES:
patent: 4707667 (1987-11-01), Bertsch
patent: 6184726 (2001-02-01), Haeberli et al.
patent: 6333864 (2001-12-01), Nishimura et al.
patent: 6737906 (2004-05-01), Senda et al.
patent: 58-135487 (1983-08-01), None
patent: 60-142610 (1985-07-01), None
patent: 60-198915 (1985-10-01), None
patent: 62-261205 (1987-11-01), None
patent: 5-129848 (1993-05-01), None
patent: 6-125228 (1994-05-01), None
patent: 11-330874 (1999-11-01), None

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