The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2010
Filed:
Dec. 07, 2007
Sanjay Pant, Fort Collins, CO (US);
David Theodore Blaauw, Ann Arbor, MI (US);
Sanjay Pant, Fort Collins, CO (US);
David Theodore Blaauw, Ann Arbor, MI (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
An integrated circuit () is provided with power regulating circuitry () serving to actively regulate the voltage difference between a first power supply rail Vand a second power rail Vbeing used to supply electrical power to processing circuitry (). A voltage regulating capacitor Chas one terminal connected to the first power rail Vand a second terminal selectively connected to either the second power rail Vor a third power rail V. Should a voltage undershoot be detected by voltage sensing circuitry, then the capacitor Cis connected to the third power rail Vso as to dump at least part of charge C, Vin capacitor Conto the first power rail Vand resist the voltage drop. During normal operation, charge is accumulated into the capacitor C. An additional load device Tis provided to lower the voltage difference should an overshoot be detected.