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:
Aug. 04, 2009
Filed:
Aug. 01, 2007
Bendik Kleveland, Santa Clara, CA (US);
Bendik Kleveland, Santa Clara, CA (US);
ZeroG Wireless, Inc., Sunnyvale, CA (US);
Abstract
A voltage regulator circuit and method are provided for regulating a voltage accurately in response to rapid variations in the regulator's load. The voltage regulator utilizes a hybrid loop; an embodiment of such utilization is exemplified by circuit. Amplifiercontrols the current flowing through pass elementfrom an unregulated input voltage node Vto a regulated voltage output node V. The regulated output voltage is provided to loadso that the voltage across the load stays constant regardless of variations in the current it pulls. The value of the regulated voltage is set by feedback networkand the input voltage at node V. The regulator feedback loop formed by amplifier, pass element, and feedback networkregulate the voltage at Vin response to low frequency perturbations in load. In response to high frequency perturbations, a sensing network triggers control circuitry. Such a sensing network is exemplified in this embodiment by comparatorsand. In response to a trigger signal, the control circuitry adjusts the drive capability of pass elementto rapidly return Vto its regulated value. When the voltage at Vreturns to its regulated value the drive capability of pass elementis reset.