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:
May. 10, 2022

Filed:

Apr. 15, 2020
Applicant:

Appulse Power Inc., Toronto, CA;

Inventors:
Assignee:

Appulse Power Inc., Toronto, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/34 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33569 (2013.01); H02M 1/34 (2013.01); H02M 1/342 (2021.05); H02M 1/348 (2021.05);
Abstract

A forward converter includes an input voltage source divided into multiple divided input voltage sources, each of which provides a portion of a total input voltage of the input voltage source. The forward converter includes an output circuit with an output capacitor, a transformer having multiple primary windings, a secondary winding, and a relaxation winding. Each primary winding is connected in series with a corresponding primary side switching device. A combination of the primary winding and the corresponding primary side switching device is in parallel with a corresponding divided voltage source. The secondary winding outputs a voltage via the output circuit. The relaxation winding is connected across the divided input voltage sources or the output capacitor. A controller circuit controls the primary side switching devices to control power flow from the input voltage source to the output capacitor based on an indication of a voltage across the output capacitor.


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