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. 15, 2011
Filed:
Jan. 12, 2007
David J. Perreault, Brookline, MA (US);
Juan M. Rivas, Auburndale, MA (US);
Anthony D. Sagneri, Cambridge, MA (US);
Olivia Leitermann, Arlington, MA (US);
Yehui Han, Cambridge, MA (US);
Robert C. N. Pilawa-podgurski, Cambridge, MA (US);
David J. Perreault, Brookline, MA (US);
Juan M. Rivas, Auburndale, MA (US);
Anthony D. Sagneri, Cambridge, MA (US);
Olivia Leitermann, Arlington, MA (US);
Yehui Han, Cambridge, MA (US);
Robert C. N. Pilawa-Podgurski, Cambridge, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Methods and apparatus for a dc-dc converter for operating at substantially fixed switching frequency, the converter including a rectifier, and a resonant inverter coupled to the rectifier, the resonant inverter including a switch and a reactive network having first, second, third and fourth energy storage elements, wherein an impedance magnitude at the output of the switch due to the reactive network has minima at dc and at a frequency near a second harmonic of the switching frequency.