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:
Jan. 17, 2006
Filed:
Nov. 06, 2001
Damon Lee, San Jose, CA (US);
Damon Lee, San Jose, CA (US);
Linear Technology Corporation, Milpitas, CA (US);
Abstract
Control circuits that employ time-based current control methods for switching voltage regulators are provided. The control circuit includes a current estimation circuit and optionally, a transfer function circuit. The current estimation circuit generates estimates of regulator output current as function of switch period for use as a threshold indicative of peak current limit. This arrangement eliminates the need for error amplifiers to provide effective current mode control. The absence of error amplifiers allows fabrication of switching regulators on smaller die areas and provides switching regulators with reduced power consumption.