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:
Feb. 12, 2019
Filed:
Aug. 08, 2016
Johnson Electric S.a., Murten, CH;
Chi Ping Sun, Hong Kong, CN;
Shing Hin Yeung, Hong Kong, CN;
Fei Xin, Shen Zhen, CN;
Xiu Wen Yang, Shen Zhen, CN;
Shu Juan Huang, Shen Zhen, CN;
Yun Long Jiang, Shen Zhen, CN;
Yue Li, Hong Kong, CN;
Bao Ting Liu, Shen Zhen, CN;
En Hui Wang, Shen Zhen, CN;
Li Sheng Liu, Shen Zhen, CN;
Yan Yun Cui, Shen Zhen, CN;
JOHNSON ELECTRIC INTERNATIONAL AG, Murten, CH;
Abstract
A motor driving circuit and a motor component are provided. The motor driving circuit includes a bidirectional alternating current switch connected in series with a motor across two terminals of an external alternating current power supply, where the bidirectional alternating current switch is connected between a first node and a second node; a rectifying circuit; a magnetic sensor, configured to detect a magnetic field of a rotor and output a corresponding magnetic inductive signal; a first voltage drop circuit and a second voltage drop circuit connected in series between the first input terminal of the rectifying circuit and the first node, where there is a third node between the first voltage drop circuit and the second voltage drop circuit, and the first voltage drop circuit is connected between the first node and the third node; a switch circuit connected between the third node and a control terminal of the bidirectional alternating current switch, where the switch circuit includes a first terminal, a second terminal, a control terminal and a switch arranged between the first terminal and the second terminal; and a switch control circuit connected between the control terminal of the switch circuit and an output terminal of the magnetic sensor.