Four-phase dual pumping circuit

Details Four-phase dual pumping circuit Four-phase dual pumping circuit

2005-10-04

2005-10-04

Cunningham, Terry D. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S537000, C363S060000

Reexamination Certificate

active

06952129

ABSTRACT:
A four-phase dual pumping circuit has a number of stages according to the required output voltage based on an input voltage. Each stage has a first pumping unit and a second pumping unit that are mirror and identical to each other and electrically coupled to each other. The dual pumping circuit is controlled by four-phase clocks which are made from one pair of out of phase clocks. The transistors of the dual pumping circuit have special substrate connection to minimize body effects. The four-phase dual pumping circuit uses NMOSFETS for negative pumping and PMOSFETS for positive pumping.

REFERENCES:
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patent: 5644534 (1997-07-01), Soejima
patent: 5982223 (1999-11-01), Park et al.
patent: 6130574 (2000-10-01), Bloch et al.
patent: 6359501 (2002-03-01), Lin et al.
patent: 6369642 (2002-04-01), Zeng
patent: 6452438 (2002-09-01), Li
patent: 6642773 (2003-11-01), Lin et al.
patent: 6677806 (2004-01-01), Bloch

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