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. 09, 2018

Filed:

Jul. 18, 2017
Applicant:

Crane Electronics, Inc., Redmond, WA (US);

Inventors:

Cuon Lam, Renton, WA (US);

Hach Nguyen, Lynnwood, WA (US);

Khoa Nguyen, Seattle, WA (US);

Peter Odell, Seattle, WA (US);

Sovann Song, Bothell, WA (US);

Assignee:

Crane Electronics, Inc., Redmond, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/00 (2013.01); H02M 3/33592 (2013.01); H02M 3/33538 (2013.01); H02M 3/33546 (2013.01); H02M 3/33553 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0025 (2013.01);
Abstract

A circuit for providing dynamic output current sharing using average current mode control for active-reset and self-driven synchronous rectification with pre-bias startup and redundancy capabilities for power converters. The circuit communicates a secondary side feedback signal to a primary side via a bidirectional magnetic communicator that also provides a secondary voltage supply. Pre-bias startup is achieved by detection of the output current direction and controlling the gate signals of synchronous rectifiers. The circuit permits dynamic current sharing via a single-control signal and automatic master converter selection and promotion.


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