Computer display with switched capacitor power supply

Details Computer display with switched capacitor power supply Computer display with switched capacitor power supply

2006-08-01

2006-08-01

Chang, Kent (Department: 2673)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C363S059000, C307S110000

Reexamination Certificate

active

07084864

ABSTRACT:
A computer (80) includes a display assembly10which uses a backlight power supply40to power a fluorescent tube18for backlighting purposes. The power supply generates voltages necessary to power the tube18, generally in the range of 250-450 for steady-state operation, using a bank41of switched capacitors52. The switched capacitors are charged in parallel and switched to a serial configuration to produce the voltage necessary to power the tube18.

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patent: 5491623 (1996-02-01), Jansen
patent: 5510814 (1996-04-01), Ise
patent: 5561597 (1996-10-01), Limpaecher

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