Power supply circuit for central processing unit

Details Power supply circuit for central processing unit Power supply circuit for central processing unit

2008-07-21

2011-11-01

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C713S323000, C713S324000, C713S340000

Reexamination Certificate

active

08051311

ABSTRACT:
A power supply circuit for a CPU includes a first control circuit, a switch circuit, an operational amplifying circuit, and a second control circuit. The first control circuit is connected to a BIOS to receive a CPU identification signal. The switch circuit is connected to the first control circuit, and also connected between a CPU and a PSI pin of a VRM. The operational amplifying circuit is connected to the VRM to receive a current monitor signal output from the VRM. The second control circuit is connected to the operational amplifying circuit, the first control circuit and the PSI pin of the VRM. When the CPU identification signal is at a high level and the current monitor signal output from the VRM is lower than a reference voltage of the operational amplifying circuit, the switch circuit turns off, and the operational amplifying circuit outputs a second control signal to make the PSI pin of the VRM grounded.

REFERENCES:
patent: 6691235 (2004-02-01), Garcia et al.
patent: 2005/0154932 (2005-07-01), Nguyen
patent: 2006/0184812 (2006-08-01), Nguyen et al.
patent: 2008/0197823 (2008-08-01), Crowther et al.
patent: 2008/0238392 (2008-10-01), Cheung et al.
patent: 2009/0267578 (2009-10-01), Luo et al.

Affiliated with

Also associated with

Rating

Power supply circuit for central processing unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power supply circuit for central processing unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply circuit for central processing unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4279061