If the power supply voltage decreases, the state of the select signal is changed from a logic high to a logic low.

如果电源电压减小，则选择信号的状态从逻辑高改变为逻辑低。

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By using this kind of shielding effects, the electric current density distribution can be improved, the back-corona can be reduced and the high voltage and low current state can be obtained.

利用电晕线支撑部分和屏蔽管的静电屏蔽效应，可以改善电除尘器板电流密度分布，减弱反电晕，并可得到高电压低电流的安全运行状态。

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Even though the device (DUT) is rapidly varying from standby mode (low current) to the RF transmit state (high current), they are also capable of providing stable voltage output.

即使待测器件(DUT)从待机状态(低电流)到射频发射状态(高电流)进行快速跳变，它们也能够提供稳定的电压输出。

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