Charge pumping circuit with decreased current consumption

Details Charge pumping circuit with decreased current consumption Charge pumping circuit with decreased current consumption

2008-06-10

2010-12-07

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, C363S059000, C363S060000

Reexamination Certificate

active

07847620

ABSTRACT:
A charge pumping circuit consumes less current by reducing the number of charge pumps operating simultaneously. The charge pumping circuit includes a voltage sensor that detects a level of a high voltage and outputs a control signal based on the detection result. An oscillator provides an oscillating clock signal in response to the control signal of the voltage sensor, and the oscillator sequentially outputs the clock signal as a plurality of clock signals having shifted phases A plurality of high-voltage pumps are disposed in a plurality of regions to pump the high voltage in response to the clock signals and a different phase is designated for each region.

REFERENCES:
patent: 6490220 (2002-12-01), Merritt et al.
patent: 2002/0033731 (2002-03-01), Lee et al.
patent: 2002/0101277 (2002-08-01), Choi
patent: 2006/0220728 (2006-10-01), Chun
patent: 2006/0244514 (2006-11-01), Lee et al.
patent: 1020070036605 (2007-04-01), None
patent: 1020070101911 (2007-10-01), None
Wikipedia—Latch (electronic) http://en.wikipedia.org/wiki/Latch—(electronics).

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