Method and circuit for charging and discharging a circuit node

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage

Reexamination Certificate

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Details

C327S536000

Reexamination Certificate

active

07902915

ABSTRACT:
A voltage circuit and method charges a circuit node to a first predetermined voltage. The first predetermined voltage charged onto the circuit node is used for a first predetermined function during a first time period. A portion of charge from the circuit node is removed to circuitry coupled to the circuit node. The portion of the charge is reused during a second time period subsequent to the first time period. In one form a voltage generator has diode configurable transistors for passing current in only one direction depending upon whether the circuit node is being charged or discharged. In another form a switch couples the circuit node between a reference terminal and another circuit for charge reuse. Reuse of charge permits increased power savings.

REFERENCES:
patent: 5768116 (1998-06-01), Kompelien
patent: 6154088 (2000-11-01), Chevallier et al.
patent: 6411531 (2002-06-01), Nork et al.
patent: 7019576 (2006-03-01), Sancheti
patent: 7116154 (2006-10-01), Guo
patent: 7253676 (2007-08-01), Fukuda
patent: 7439793 (2008-10-01), Lee
patent: 7489566 (2009-02-01), Kang
patent: 7551507 (2009-06-01), Nakai
patent: 7649402 (2010-01-01), Chen
patent: 2008/0116970 (2008-05-01), Asam
patent: 2008/0157852 (2008-07-01), Pan
patent: 2008/0164933 (2008-07-01), Gschwind et al.
patent: 2008/0239838 (2008-10-01), Chi et al.
patent: 2008/0253215 (2008-10-01), Akiba et al.
patent: 2001-268894 (2001-09-01), None
PCT Application No. PCT/US2010/034544; Search Report and Written Opinion dated Jun. 28, 2010.
Trescases, Oliver et al.; “Variable Output, Soft Switching DC/DC Converter for VLSI Dynanic Voltage Sealing Power Supply Applications”; 2004 35th Annual IEEE Power Electronics Specialists Conference; 2004; pp. 4149-4155; IEEE.
Geng, Li et al.; “A CMOS Hybrid Control Mode DC-DC Buck Converter for Embedded System”; Proceedings of 2004 International Conference on Solid-State and Integrated Circuits Technology; Oct. 18-21, 2004; pp. 1472-1475; vol. 2.; IEEE.
U.S. Appl. No. 12/537,436 filed Aug. 7, 2009.

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