Power supply unit and computer

Details Power supply unit and computer Power supply unit and computer

2008-05-06

2008-05-06

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Reexamination Certificate

active

09754483

ABSTRACT:
A series power supply circuit and a switching power supply circuit are combined within a single power supply unit. The switching power supply circuit provides an efficiency lower than that of the series power supply circuit under a light load and provides an efficiency higher than that of the series power supply circuit under a heavy load. A standby signal that is asserted under a light load and is deasserted under a heavy load is input to a negative logic enable terminal (−EN) of the series power supply circuit through an inverter0. The standbysignal is directly input to the negative logic enable terminal (−EN) of a PWM controller in the switching power supply circuit.

REFERENCES:
patent: 5498984 (1996-03-01), Schaffer
patent: 5796182 (1998-08-01), Martin
patent: 5796982 (1998-08-01), Iwami et al.
patent: 6150798 (2000-11-01), Ferry et al.
patent: 6351416 (2002-02-01), Fuchigami et al.
patent: 6600239 (2003-07-01), Winick et al.
patent: 6651178 (2003-11-01), Voegeli et al.
patent: 63219368 (1990-03-01), None
patent: 03-60880 (1991-06-01), None
patent: 07125401 (1996-02-01), None

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