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:
May. 08, 2018
Filed:
Aug. 08, 2016
Johnson Electric S.a., Murten, CH;
Chi Ping Sun, Hong Kong, CN;
Fei Xin, Shen Zhen, CN;
Ken Wong, Hong Kong, CN;
Shing Hin Yeung, Hong Kong, CN;
Hui Min Guo, Hong Kong, CN;
Shu Zuo Lou, Hong Kong, CN;
Xiao Ming Chen, Hong Kong, CN;
Guang Jie Cai, Hong Kong, CN;
Chun Fai Wong, Hong Kong, 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;
Xiu Wen Yang, Shen Zhen, CN;
Li Sheng Liu, Shen Zhen, CN;
Yan Yun Cui, Shen Zhen, CN;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
The present teaching relates to a method/apparatus for a magnetic sensor. The apparatus of the magnetic sensor resides in a housing and includes an input port and an output port, both extending from the housing. The apparatus also includes an electrical circuit which comprises a magnetic field detecting circuit, configured to detect an external magnetic field and output a magnetic induction signal that is indicative of information related to the external magnetic field, an output control circuit coupled between the magnetic field detecting circuit and the output port, and a state control circuit coupled with the output control circuit and configured to determine whether a predetermined condition is satisfied and signal the same to the output control circuit. When the predetermined condition is satisfied, the state control circuit is at least responsive to the magnetic induction signal to enable the output control circuit to control the magnetic sensor to operate in at least one of a first state and a second state. In the first state, a load current flows in a first direction from the output port to outside of the magnetic sensor. In the second state, a load current flows in a second direction opposite of the first direction from outside of the magnetic sensor into the magnetic sensor via the output port. When the predetermined condition is not satisfied, the state control circuit enables the output control circuit to control the magnetic sensor to operate in a third state.