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:
Apr. 06, 2021
Filed:
Dec. 20, 2018
Applicant:
Delta Electronics, Inc., Taoyuan, TW;
Inventor:
Po-Chin Chuang, Taoyuan, TW;
Assignee:
DELTA ELECTRONICS, INC., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); H02M 3/335 (2006.01); H03K 5/24 (2006.01); H02M 1/42 (2007.01); H02M 7/5387 (2007.01); H02M 1/08 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H03K 17/6871 (2013.01); H02M 1/08 (2013.01); H02M 1/32 (2013.01); H02M 1/4208 (2013.01); H02M 1/4233 (2013.01); H02M 3/33569 (2013.01); H02M 3/33592 (2013.01); H02M 7/5387 (2013.01); H03K 5/24 (2013.01); H02M 1/4225 (2013.01); H02M 2001/0006 (2013.01); H02M 2001/0058 (2013.01); H03K 2017/6875 (2013.01);
Abstract
An auxiliary circuit for outputting a supplying voltage or a detection signal includes a normally-on device and a signal processing circuit. A drain terminal of the normally-on switching device is coupled to a first terminal, a gate terminal of the normally-on switching device is coupled to a second terminal. An input voltage between the first terminal and the second terminal switches between two different levels. The signal processing circuit is configured to output the supplying voltage or the detection signal according to a voltage at a source terminal of the normally-on switching device.