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Controller and associated system and method for pulse-width-modulation switching noise reduction by voltage control
Controller and associated system and method for pulse-width-modulation switching noise reduction by voltage control
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机译:通过电压控制降低脉宽调制开关噪声的控制器及相关系统和方法
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摘要
A system for controlling a brushless direct current (BLDC) motor includes a power supply having a controllably alterable voltage output, and a controller in electrical communication with the power supply and the motor. The controller receives the voltage output of the power supply and can provide a pulse-width-modulated input voltage to the motor. Additionally, the controller can measure an average input current to the motor and a speed of the motor and thereafter alter the voltage output of the power supply based upon the average input current to the motor and the speed of the motor. In a further embodiment, the system can include an acoustic coating disposed about an outer surface of the motor and the controller.
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