In the controller design section, the design process of the power supply circuit, Hall sensor circuit, control circuit, power amplifier circuit is introduces. iv.
在控制器设计部分，分别介绍了电源电路、霍尔传感器电路、控制器电路、功放电路的设计过程。
This system that adopts precision instrument as test units of electricity quantity, and equips with Hall sensor is used for electricity quantity test of various transducer power in power supply state.
系统采用精确的仪表作为电量测试单元，配备霍尔传感器，适用于各种变频器电源供电状态下的电量测量。
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