High voltage generating circuit preserving charge pumping...

Details High voltage generating circuit preserving charge pumping... High voltage generating circuit preserving charge pumping...

2007-11-13

2007-11-13

Lam, Tuan T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S537000

Reexamination Certificate

active

11103647

ABSTRACT:
A high voltage generating circuit is disclosed. In the high voltage generating circuit a boost node is precharged and boosted by a plurality of pump circuits and then discharged to an output terminal. Where a voltage apparent at the boost node is smaller than a power supply voltage, the voltage apparent at the boost node is elevated to the power supply voltage. Where the voltage apparent at the boost node is larger than the power supply voltage, a current path is prevented from forming between the boost node and the power supply voltage so as to maintain the voltage apparent at the boost node.

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patent: 10208489 (1998-08-01), None
patent: 000026486 (2000-05-01), None
patent: 1020030002813 (2003-01-01), None

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