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. 20, 2002
Filed:
Nov. 22, 2000
Applicant:
Inventor:
William L. Walter, Lowell, MA (US);
Assignee:
Linear Technology Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/18 ; H02M 3/00 ;
U.S. Cl.
CPC ...
H02M 3/18 ; H02M 3/00 ;
Abstract
A circuit and method for regulating a voltage by means of a switched capacitor circuit including multiple switches and capacitors. The circuit is operable in a plurality of modes that match the power transferred by the switched capacitors to the power drawn by a load. Advantageously, the circuit and method increase the efficiency of the regulator circuit over varying input voltage levels and output current levels. In addition, the circuit provides lower output ripple than conventional charge pumps.