US Patent No. 10,483,830

MAGNETIC SENSOR INTEGRATED CIRCUIT AND MOTOR COMPONENT


Patent No. 10,483,830
Issue Date November 19, 2019
Title Magnetic Sensor Integrated Circuit And Motor Component
Inventorship 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)
Assignee JOHNSON ELECTRIC INTERNATIONAL AG, Murten (CH)

Claim of US Patent No. 10,483,830

1. A magnetic sensor integrated circuit, comprising a housing, a semiconductor substrate arranged inside the housing, input ports and an output port which extend out from the housing, and an electronic circuit arranged on the semiconductor substrate, wherein the electronic circuit comprises:a magnetic field detection circuit configured to detect and output a magnetic field inductive signal corresponding to an external magnetic field; and
a voltage detection circuit configured to detect a specific voltage, and output, in a case that the specific voltage reaches a predetermined value, a control signal for controlling the magnetic sensor integrated circuit to perform a preset action, wherein the specific voltage is a supply voltage for the magnetic field detection circuit; and the voltage detection circuit at least comprises a comparator, wherein an input terminal of the comparator receives the specific voltage, the other input terminal of the comparator receives a reference voltage, and the comparator is configured to output, in a case that the specific voltage is higher than the reference voltage, the control signal for controlling the magnetic sensor integrated circuit to perform a specific action;
wherein the voltage detection circuit and the magnetic field detection circuit operate simultaneously.