Display power partitioning

Details Display power partitioning Display power partitioning

2008-07-22

2008-07-22

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S307000, C323S224000, C323S272000

Reexamination Certificate

active

10609822

ABSTRACT:
According to one embodiment of the present invention, a voltage regulator is disclosed. The voltage regulator includes a step-down portion to step down an input voltage to a desired voltage when the input voltage is provided by a battery power source; and a step-up portion to step up the input voltage to the desired voltage when the input voltage is provided by a system rail. In accordance with another embodiment of the present invention, the voltage regulator provides power to a display device such as an LCD, a flat panel display, a plasma screen, and a TFT display.

REFERENCES:
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patent: 5548189 (1996-08-01), Williams
patent: 6181084 (2001-01-01), Lau
patent: 6275016 (2001-08-01), Ivanov
patent: 6465993 (2002-10-01), Clarkin et al.
patent: 6593725 (2003-07-01), Gallagher et al.
patent: 6865682 (2005-03-01), Talbot et al.
patent: 7187140 (2007-03-01), Ball

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