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:
Feb. 22, 2005
Filed:
Sep. 28, 2002
John Wendell Oglesbee, Watkinsville, GA (US);
John Wendell Oglesbee, Watkinsville, GA (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
This invention includes an improvement to a power regulation and thermal management circuit. The power regulation and thermal management circuit includes a pass element coupled serially between a power source and a load. A voltage sensing circuit senses the voltage across the serial element and selects a corresponding current path based upon the sense voltage from a plurality of current paths. The invention includes a timing circuit that periodically, temporarily overrides the selection of current paths. The timing circuit generates a test pulse that temporarily turns all of the current paths on, thereby preventing a discharge lockout condition. The power regulation and thermal management circuit also includes a linear regulator to terminate charging at the appropriate voltage.