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Method For Calibrating A Motor Control Circuit To Improve Temperature Measurement In A Electrical Motor
Method For Calibrating A Motor Control Circuit To Improve Temperature Measurement In A Electrical Motor
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机译：校准电动机控制电路以改善电动机温度测量的方法
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摘要
A method enables measurement of an inverter loss within a motor control circuit for an appliance. The method includes applying a constant DC current generated from a first AC supply voltage to a motor winding through an inverter at a first duty cycle, measuring a first voltage corresponding to the current through the motor at a motor current sense resistor, computing a first ratio of the first measured voltage at the motor current sense resistor to a first DC input voltage corresponding to the first AC supply voltage, identifying a second duty cycle from the first computed ratio, comparing the second duty cycle to the first duty cycle, and identifying a first inverter loss factor from the difference between the first duty cycle and the second duty cycle.
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