Method and apparatus for power savings in a switching regulator

Details Method and apparatus for power savings in a switching regulator Method and apparatus for power savings in a switching regulator

2006-06-09

2009-06-02

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07541790

ABSTRACT:
In one embodiment, the present invention includes a regulator having a pulse width modulation (PWM) controller to generate a PWM control signal based on a voltage level of a load coupled to the regulator, a driver to provide a drive signal to a switching element of the regulator responsive to the PWM control signal, and a power saver coupled between the PWM controller and the driver to receive the PWM control signal and to output the PWM control signal to the driver at a reduced rate during an idle mode of the load.

REFERENCES:
patent: 5568044 (1996-10-01), Bittner
patent: 5638440 (1997-06-01), Nix et al.
patent: 6469921 (2002-10-01), Arai et al.
patent: 6778663 (2004-08-01), Schopfer
patent: 7042202 (2006-05-01), Sutardja et al.
patent: 2006/0022657 (2006-02-01), Sutardja et al.
patent: 2006/0255782 (2006-11-01), Sugiyama et al.

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