Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2006-12-29

2008-12-16

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C363S059000, C363S060000

Reexamination Certificate

active

07466189

ABSTRACT:
The present invention provides a charge pump circuit capable of achieving desired boosting operation even when a high-side switch for precharge or a low-side switch for driving output is constructed by a low-withstand-voltage transistor. The high level of a drive input signal for driving a high-side switch for precharge and a low-side switch for driving output in response to a clock signal is set to the level of a boosted output voltage. The low level of the drive input signal is set to the level of an input voltage, not ground potential.

REFERENCES:
patent: 6960955 (2005-11-01), Nonaka
patent: 7005912 (2006-02-01), Nonaka
patent: 7072193 (2006-07-01), Lin
patent: 7148740 (2006-12-01), Kobayashi et al.
patent: 2005-57860 (2005-03-01), None

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