Semiconductor circuit device controlling power source voltage

Details Semiconductor circuit device controlling power source voltage Semiconductor circuit device controlling power source voltage

2011-08-23

2011-08-23

Zweizig, Jeffrey S (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

Reexamination Certificate

active

08004348

ABSTRACT:
A control circuit controls a power-source-voltage feed circuit, and controls a power source voltage fed to a target circuit. A reference-speed monitor monitors whether or not a delay time of a critical path in the target circuit is satisfies a required operational speed. A voltage-difference monitor monitors a difference between the power source voltage of the target circuit and a threshold voltage of the target circuit, to output the voltage difference information. The control circuit determines whether to increase or decrease the power source voltage based on a result of monitoring by the reference-speed monitor. The control circuit determines the change rate of the power source voltage so that the control rate of the power source voltage is proportional to the voltage difference information output from the voltage-difference monitor.

REFERENCES:
patent: 6313622 (2001-11-01), Seki et al.
patent: 6414527 (2002-07-01), Seno et al.
patent: 6667651 (2003-12-01), Hashiguchi
patent: 7501868 (2009-03-01), Ito
patent: 7755418 (2010-07-01), Hosier
patent: 2000216337 (2000-08-01), None
patent: 2000216338 (2000-08-01), None
patent: 2001244421 (2001-09-01), None
patent: 2003330549 (2003-11-01), None
patent: 2005141757 (2005-06-01), None
patent: 2005340426 (2005-12-01), None
Chinese Office Action for CN200880005224.4 issued May 11, 2010.
International Search Report for PCT/JP2008/052434 mailed May 20, 2008.

Affiliated with

Also associated with

Rating

Semiconductor circuit device controlling power source voltage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor circuit device controlling power source voltage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor circuit device controlling power source voltage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2727676