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BLDC MOTOR SYSTEM INCLUDING PARAMETER DETECTION CIRCUIT AND METHOD OF OPERATING BLDC MOTOR SYSTEM
BLDC MOTOR SYSTEM INCLUDING PARAMETER DETECTION CIRCUIT AND METHOD OF OPERATING BLDC MOTOR SYSTEM
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机译:包括参数检测电路的无刷直流电动机系统和运行无刷直流电动机系统的方法
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摘要
A BLDC motor system according to the present invention includes a motor driving circuit for controlling a pulse-width-modulation (PWM) inverter according to a control signal in a first or second operation mode and for outputting a switching signal according to each mode; the PWM inverter for receiving the switching signal to output three-phase voltages having a first frequency in the first operation mode and three-phase voltages having a second frequency in the second operation mode; a sensorless brushless direct current (BLDC) motor which is operated based on three-phase voltages having a frequency in a band different from the band of the first frequency, is not operated in the first operation mode, and is operated based on three-phase voltages having a frequency in a band equal to the band of the second frequency in the second operation mode; and a parameter detecting circuit for calculating three-phase parameter information of the BLDC motor by using voltages sensed in the PWM inverter.;COPYRIGHT KIPO 2016
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