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. 01, 2000
Filed:
Dec. 19, 1997
Applicant:
Inventors:
Duane Rabe, Hawthorne Woods, IL (US);
William P Alberth, Jr, Crystal Lake, IL (US);
Louis J Vannatta, Crystal Lake, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H01Q / ; H03F / ; H02J / ;
U.S. Cl.
CPC ...
455572 ; 455127 ; 455117 ; 455574 ; 330297 ; 330127 ; 320166 ;
Abstract
An electronic circuit (200) for a portable electronic device includes an energy source interface (202), a load (204) coupled to the energy source interface (202), an energy storage circuit (206) having a maximum operating voltage, and a switch circuit (208). The switch circuit (208) is coupled to the energy source interface (202) in series with the energy storage circuit (206). The switch circuit (208) operates to switchably decouple the energy storage circuit (206) in response to a voltage at the load (204) that exceeds the maximum operating voltage.