Robust power sequencing management solution for notebook...

Details Robust power sequencing management solution for notebook... Robust power sequencing management solution for notebook...

2006-05-22

2009-06-09

Du, Thuan N (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power sequencing

C361S166000

Reexamination Certificate

active

07546479

ABSTRACT:
For sequencing of power rails, a plurality of switches, which operate independently of each other, are operable to control delivery of power from an input power rail to an output power rail. The delivery of the power is controlled by a control input. A time delay circuit is operable to delay the control input by a time period. An input discrete component, coupled in series with the delay circuit, is configurable to adjust the time period. A fast discharge circuit is enabled to override the time period on a trailing edge of the output power rail. A discharge circuit that is coupled to the output power rail includes an output discrete component, the component being selectable to control a decay rate of the output power rail.

REFERENCES:
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patent: 5424903 (1995-06-01), Schreiber
patent: 6693410 (2004-02-01), Terrien
patent: 6867627 (2005-03-01), Murtagh
patent: 2003/0056125 (2003-03-01), O'Conner et al.
patent: 2003/0105984 (2003-06-01), Masuyama et al.
patent: 2007/0079162 (2007-04-01), Mundada et al.

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