Internal voltage generation circuit for generating stable...

Details Internal voltage generation circuit for generating stable... Internal voltage generation circuit for generating stable...

2007-07-10

2010-11-16

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S537000, C327S538000, C327S543000

Reexamination Certificate

active

07834680

ABSTRACT:
There is provided an internal voltage generation circuit generating an internal voltage used for a semiconductor memory device. The internal voltage generation circuit includes a current mirror type internal voltage detector generating a comparison voltage and comparing the comparison voltage with a reference voltage to output the comparison result as a detection signal, and a charge pump outputting the internal voltage and controlling the level of the internal voltage by the detection signal. The current mirror type internal voltage detector generates a comparison voltage whose level is determined in accordance with the output of the current mirror having a variable current source in which current varies in accordance the output internal voltage.

REFERENCES:
patent: 5744998 (1998-04-01), Ito et al.
patent: 5859560 (1999-01-01), Matthews
patent: 5936443 (1999-08-01), Yasuda et al.
patent: 6005434 (1999-12-01), Tsukikawa et al.
patent: 6201437 (2001-03-01), Kono et al.
patent: 6297624 (2001-10-01), Mitsui et al.
patent: 6927620 (2005-08-01), Senda
patent: 7224208 (2007-05-01), Matsushita
patent: 2002/0053943 (2002-05-01), Yamasaki et al.
patent: 2005/0237104 (2005-10-01), Chou
patent: 1020040095891 (2004-11-01), None
patent: 1020050012002 (2005-01-01), None
patent: 10-0818105 (2008-03-01), None

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