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:
Aug. 24, 2021
Filed:
Jul. 20, 2020
Applicant:
Global Mixed-mode Technology Inc., Hsin-Chu, TW;
Inventors:
Wei-Yu Chen, New Taipei, TW;
Guang-Nan Tzeng, Hsinchu, TW;
Assignee:
Global Mixed-mode Technology Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/20 (2006.01); H02H 9/04 (2006.01); H03K 17/687 (2006.01); G01R 19/165 (2006.01); H03K 17/0812 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H02H 9/042 (2013.01); G01R 19/16538 (2013.01); H02H 3/20 (2013.01); H02H 9/044 (2013.01); H03K 5/24 (2013.01); H03K 17/08122 (2013.01); H03K 17/6871 (2013.01);
Abstract
An overvoltage protection circuit which can be applied to a motor controller is provided. The overvoltage protection circuit comprises a voltage controller, a comparator, and a switching circuit so as to prevent damage to a driving circuit. The driving circuit is configured to supply a driving current to a motor coil.