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:
Jul. 06, 2021

Filed:

Sep. 27, 2018
Applicant:

Weltrend Semiconductor Inc., Hsinchu, TW;

Inventors:

Chun-Teh Chen, Hsinchu, TW;

Yi Lun Shen, Hsinchu, TW;

Yu-Yun Huang, Hsinchu, TW;

Ren Yi Chen, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02M 1/32 (2007.01); H02M 3/335 (2006.01); H02H 7/12 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02H 7/1213 (2013.01); H02M 3/33507 (2013.01); H02M 3/33523 (2013.01); H02M 2001/327 (2013.01);
Abstract

A power converter capable of performing over-voltage protection and over-temperature protection converts an input voltage into an output voltage. A power switch is connected in series with a primary winding between the input voltage and an input ground. A power controller with a multi-function pin controls the power switch to control a winding current through the primary winding. The power converter has a multi-purpose circuit with first and second resistors, a rectifier and a thermistor. A connection node makes the first and second resistors connected in series between two ends of an auxiliary winding. The rectifier and the thermistor are connected in parallel between the multi-function pin and the connection node. The power controller can perform over-voltage protection and over-temperature protection via the multi-purpose circuit and the multi-function pin.


Find Patent Forward Citations

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Chen, Chun-Teh. (2021). Power converter, power controller, and control method capable of providing multiple protections (U.S. Patent No. 11056968). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11056968

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