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.

Date of Patent:
Jan. 15, 2019

Filed:

Aug. 11, 2017
Applicant:

Linear Technology Holding Llc, Norwood, MA (US);

Inventors:

Jian Li, San Jose, CA (US);

Jindong (Henry) Zhang, Fremont, CA (US);

Assignee:

Linear Technology Holding LLC, Norwood, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
H02M 7/4807 (2013.01); H02M 1/36 (2013.01); H02M 2007/4815 (2013.01); H02M 2007/4818 (2013.01);
Abstract

A switched resonant power converter includes multiple switching transistors, a resonant circuit comprising a capacitor and an inductor, and an auxiliary soft-start bypass circuit that bypasses a default switching path that includes a first switching transistor of the switching transistors, and provides an alternative path through an impedance element. A corresponding control circuit is configured to switch between an operational mode in which the default switching path is periodically activated while the alternative path is deactivated to provide a first frequency-responsive power through the resonant circuit, and a soft-start mode in which the alternative path is periodically activated while the default switching path is deactivated to provide a second frequency-responsive power through the resonant circuit.


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