전류 감지 시스템이 차량의 배터리에 전기적으로 연결된 전류 전달 전도체에 인접하여 배치된 적어도 하나의 자기 터널 접합 디바이스를 포함한다. 자기 터널 접합 디바이스는 전도체 주위의 자계를 측정하도록 구성된다. 모니터링 디바이스가 자기 터널 접합 디바이스에 동작가능하게 연결되고, 여기서 모니터링 디바이스는 자계 측정을 수신하고 전도체를 통해 흐르는 전류의 추정치를 결정하도록 구성된다.
A method of sensing a current in a conductor includes controlling a digital to analog converter output to cancel residual offset voltage in a magnetic tunnel junction device prior to sensing the current with the magnetic tunnel junction device. The method includes switching input to the magnetic tunnel junction device between a fixed voltage and an output of a digital to analog converter while switching input to a band pass filter between a lower and an upper voltage output of the magnetic tunnel junction device. The output of the digital to analog converter is modified to provide a low-amplitude unsaturated sine-wave at an output of the band pass filter, at which point changes in the output of the band pass filter are associated with the amount of current in a sensed conductor.
VEHICLE BATTERY CURRENT SENSING SYSTEM
차량 배터리 전류 감지 시스템
2023-05-10
Patent
Elektronische Ressource
Koreanisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS |
Current sensing module, vehicle-mounted system and current sensing and fault diagnosis method
Europäisches Patentamt | 2023
|Current diagnosis method and system for vehicle battery and battery assembly
Europäisches Patentamt | 2023
|SYSTEM AND METHOD FOR MEASURING OFFSET CURRENT OF CURRENT SENSOR FOR SENSING CURRENT OF BATTERY
Europäisches Patentamt | 2018
|