Data processing: measuring – calibrating – or testing – Calibration or correction system – Signal frequency or phase correction
Reexamination Certificate
2008-06-03
2009-08-25
Tsai, Carol S (Department: 2857)
Data processing: measuring, calibrating, or testing
Calibration or correction system
Signal frequency or phase correction
C702S064000, C323S257000, C323S255000, C323S260000, C323S239000, C323S258000, C323S283000, C323S285000
Reexamination Certificate
active
07580805
ABSTRACT:
A circuit for regulating power is disclosed. The present invention provides circuits and methods for current sensing variations, static droop settings, mismatched phase outputs, and temperature variations in a multiphase power regulator. The circuits may include a calibration controller that senses and regulates both a current sensing circuit and the droop in a power regulator over a range of temperatures thus equalizing phase outputs. The present invention includes the schematic organization and implementation of the circuit, the circuit's calibration, its use, and implementation. This invention advantageously provides circuits and methods to properly power a processor or IC chip according to the unique power specifications of the processor or chip.
REFERENCES:
patent: 4746879 (1988-05-01), Ma et al.
patent: 5294879 (1994-03-01), Freeman et al.
patent: 5825164 (1998-10-01), Williams
patent: 5993060 (1999-11-01), Sakurai
patent: 6184670 (2001-02-01), Mulatti et al.
patent: 6246220 (2001-06-01), Isham et al.
patent: 6486641 (2002-11-01), Scoggins et al.
patent: 6498461 (2002-12-01), Bucur
patent: 6504395 (2003-01-01), Johnson
patent: 6528976 (2003-03-01), Lenk et al.
patent: 6611129 (2003-08-01), Bucur
patent: 6664771 (2003-12-01), Scoggins et al.
patent: 6677736 (2004-01-01), Barnes et al.
patent: 6680604 (2004-01-01), Muratov et al.
patent: 6882238 (2005-04-01), Kurd et al.
patent: 6906975 (2005-06-01), Kang et al.
patent: 7027944 (2006-04-01), Tabaian et al.
patent: 7383145 (2008-06-01), Tabaian et al.
patent: 2001/0045815 (2001-11-01), Muratov et al.
patent: 2002/0125871 (2002-09-01), Groom et al.
patent: 2002/0171985 (2002-11-01), Duffy et al.
patent: 2003/0006650 (2003-01-01), Tang et al.
patent: 2004/0062058 (2004-04-01), Hann et al.
patent: 2004/0183613 (2004-09-01), Kurd et al.
patent: 2004/0219891 (2004-11-01), Hadjichristos
patent: 07-065864 (1995-03-01), None
patent: WO2005/006101 (2005-01-01), None
http://www.eetimes.com/show/pressure-lease.html?Articleid=98169, Sep. 10, 2003.
PCT Application PCT/US04/20663 International Search Report mailed Nov. 18, 2005.
PCT Application PCT/US04/20663 Written Opinion of the International Search Authority mailed Nov. 18, 2005.
PCT Application PCT/US04/20663 Notification of Transmittal of International Preliminary Report on Patentability dated Apr. 5, 2006.
Ashrafzadeh Ahmad
Hejazi Ali
Sadati Hamed
Tabaian Fereydun
Nupower Semiconductor, Inc.
Rashidi-Yazd, Esq. Seyed Kaveh E.
Troutman Sanders LLP
Tsai Carol S
LandOfFree
Programmable calibration circuit for power supply current... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable calibration circuit for power supply current..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable calibration circuit for power supply current... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4125434