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AC power source direct-coupled brushless DC motor and electrical equipment equipped with the same
AC power source direct-coupled brushless DC motor and electrical equipment equipped with the same
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机译:交流电源直耦式无刷直流电动机及其配备的电气设备
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摘要
In an AC-input type brushless DC motor, a current control circuit controls an average current of an inverter circuit, a current indication circuit makes addition or subtraction, with respect to a reference current value, to the average current to be supplied to the inverter circuit such that the average current falls into a correlation indicated by a correlation indication circuit. The foregoing structure allows setting speed-torque characteristics of the brushless DC motor such that the torque increases at a higher rpm of the motor. The characteristics are good for driving a fan.
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