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:
Dec. 20, 2005
Filed:
Aug. 28, 2003
Hayden C. Cranford, Jr., Cary, NC (US);
Stacy J. Garvin, Durham, NC (US);
Vernon R. Norman, Cary, NC (US);
Todd M. Rasmus, Cary, NC (US);
Peter R. Seidel, Morrisville, NC (US);
Hayden C. Cranford, Jr., Cary, NC (US);
Stacy J. Garvin, Durham, NC (US);
Vernon R. Norman, Cary, NC (US);
Todd M. Rasmus, Cary, NC (US);
Peter R. Seidel, Morrisville, NC (US);
International Busines Machines Corporation, Armonk, NY (US);
Abstract
A self-adaptive voltage regulator for a phase-locked loop is disclosed. The phase-locked loop includes a phase detector, a charge pump, a low pass filter, and a voltage control oscillator, wherein the low pass filter inputs a control voltage to a voltage controlled oscillator for generation of an output clock. According to the method and system disclosed herein, the self-adaptive voltage regulator is coupled to an output of the low pass filter for sensing the control voltage during normal operation of the phase-locked loop, and for dynamically adjusting the supply voltage, which is input to the voltage controlled oscillator in response to the control voltage, such that the phase-locked loop maintains the control voltage within a predefined range of a reference voltage.