Conserving power of a system on a chip using an alternate...

Details Conserving power of a system on a chip using an alternate... Conserving power of a system on a chip using an alternate...

2007-08-21

2007-08-21

Nguyen, Chau N. (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Plural converters

Reexamination Certificate

active

10607948

ABSTRACT:
A method for conversing battery power for a battery-optimized system-on-a-chip begins by sensing for presence of an alternate power source. The processing continues, when the presence of the alternate power source is detected, a first control loop of a first DC-to-DC converter is disabled and a second control loop of a second DC-to-DC converter is enabled to produce a supply voltage for the system-on-a-chip. The first DC-to-DC converter, when enabled, converts a battery voltage into a supply voltage and the second DC-to-DC converter, when enabled, converts voltage from the alternate power source into the supply voltage.

REFERENCES:
patent: 5579197 (1996-11-01), Mengelt et al.
patent: 5650669 (1997-07-01), Aldous
patent: 5768115 (1998-06-01), Pascucci et al.
patent: 2002/0065618 (2002-05-01), Oh

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