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:
Dec. 15, 2015
Filed:
Sep. 07, 2011
Chris Levesque, Fountain Valley, CA (US);
Jean-christophe Berchtold, Carlsbad, CA (US);
Joseph Hubert Colles, Bonsall, CA (US);
Robert Deuchars, Carlsbad, CA (US);
William David Southcombe, San Diego, CA (US);
David Zimlich, San Diego, CA (US);
David E. Jones, Cedar Rapids, IA (US);
Scott Yoder, Holly Springs, NC (US);
Terry J. Stockert, Cedar Rapids, IA (US);
Chris Levesque, Fountain Valley, CA (US);
Jean-Christophe Berchtold, Carlsbad, CA (US);
Joseph Hubert Colles, Bonsall, CA (US);
Robert Deuchars, Carlsbad, CA (US);
William David Southcombe, San Diego, CA (US);
David Zimlich, San Diego, CA (US);
David E. Jones, Cedar Rapids, IA (US);
Scott Yoder, Holly Springs, NC (US);
Terry J. Stockert, Cedar Rapids, IA (US);
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
The present disclosure relates to a flexible direct current (DC)-DC converter, which includes a charge pump buck power supply and a buck power supply. The charge pump buck power supply and the buck power supply are voltage compatible with one another at respective output inductance nodes to provide flexibility. In one embodiment of the DC-DC converter, capacitances at the output inductance nodes are at least partially isolated from one another by using at least an isolating inductive element between the output inductance nodes to increase efficiency. In an alternate embodiment of the DC-DC converter, the output inductance nodes are coupled to one another, such that the charge pump buck power supply and the buck power supply share a first inductive element, thereby eliminating the isolating inductive element, which reduces size and cost but may also reduce efficiency.