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Smart motor driver architecture with built-in MEMS sensor based early diagnosis of faults
Smart motor driver architecture with built-in MEMS sensor based early diagnosis of faults
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机译:具有内置MEMS传感器的智能电机驱动器架构,可基于故障的早期诊断
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摘要
A system in package encloses a sensor and motor driver circuit. In an implementation, the sensor is an integrated circuit micro-electro-mechanical-systems (MEMS) sensor and the driver circuit is a motor driver circuit. Non-motor winding data information is sensed by the MEMS sensor and processed for the purpose of characterizing known fault patterns for motors; characterizing normal operation of the motor; and evaluating continued operation of the motor to detect abnormal motor behavior and instances of motor fault. The motor is driven using PWM control and the information output by the MEMS sensor is sampled at sampling times having a fixed timing relationship relative to the PWM control signals.
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