Troubleshooting system and method for current sensors

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United States of America Patent

PATENT NO 12105176
APP PUB NO 20230121422A1
SERIAL NO

17837741

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Importance

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Abstract

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The present disclosure provides a troubleshooting system for current sensors including a motor, three current sensors and a controller. The three current sensors respectively sense three phase currents of the three-phase current of the motor to obtain three current sensing values. The controller is configured to control the three-phase current of the motor. When the sum of the three current sensing values is greater than a threshold, the controller controls the three phase currents to be zero, and a first offset sensor and a current offset are obtained. When the sum of the three current sensing values equals the current offset, a second offset sensor is obtained. If the first offset sensor and the second offset sensor are the same current sensor, the controller outputs a warning signal, if the first offset sensor and the second offset sensor are different current sensors, the controller controls the motor to stop operating.

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Patent Owner(s)

Patent OwnerAddress
DELTA ELECTRONICS INC186 RUEY KUANG ROAD NEIHU TAIPEI (114)

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chao, Kuo-Heng Taoyuan, TW 5 0
Chuang, Chia-Hsiang Taoyuan, TW 5 3

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