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:
Jan. 15, 2019
Filed:
Feb. 27, 2018
Applicant:
Anpec Electronics Corporation, Hsinchu, TW;
Inventor:
Yi-Cheng Liu, New Taipei, TW;
Assignee:
ANPEC ELECTRONICS CORPORATION, Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); H02K 11/215 (2016.01); G01D 5/20 (2006.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02K 11/215 (2016.01); G01D 5/20 (2013.01); H02P 27/06 (2013.01);
Abstract
A detection device and a detection method of a rotor position of three-phase motor are disclosed which measure induced voltages under different voltage vectors and calculate an induced voltage relationship among the different induced voltages. Then the detection device and the detection method find out the rotor position suitable for the induced voltage relationship according to a rotor position table. Therefore, the detection device and the detection method can accurately detect the rotor position in a standstill state to prevent the three-phase motor from operating abnormally and burning out.