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. 15, 2011
Filed:
Dec. 12, 2007
Jonathan P. Kraft, Frederick, CO (US);
Jonathan P. Kraft, Frederick, CO (US);
Semiconductor Components Industries, LLC., Phoenix, AZ (US);
Abstract
In one embodiment, a PWM controller includes a circuit operably coupled to inhibit a drive signal responsively to a bulk input voltage remaining at a low value for a time interval and to re-enable the drive signal subsequently to the time interval responsively to the bulk input voltage increasing to greater than the first value subsequently to the time interval. In another embodiment, a method of forming a PWM controller includes configuring the PWM controller to use a clock signal to form a drive signal and to sense a bulk input voltage decreasing to no greater than a first value and to disable the drive signal without disabling the clock signal responsively to the bulk input voltage remaining no greater than the first value for a time interval.