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.:

US 8456144 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 04, 2013

Filed:

Mar. 18, 2009
Applicants:

Daniel Chatroux, Teche, FR;

Jean-claude Dolhagaray, Saclay, FR;

Francis Roy, Les Ulis, FR;

Inventors:

Daniel Chatroux, Teche, FR;

Jean-Claude Dolhagaray, Saclay, FR;

Francis Roy, Les Ulis, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/613 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power supply with non-isolated DC DC splitting includes n conversion cells that are interlaced. The splitting switch of each cell is placed in a resonant circuit. The resonant circuit makes it possible to obtain a switching to the open state of said switch at zero current and voltage. The ripple at the input and output is minimized and the efficiency improved. In particular, the wiring inductances in the charge transfer loop of each cell no longer have negative effects on the efficiency. The cell may be of boost, buck, buck/boost, Cuk or SEPIC topology.


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