...：使能输入端、 inputs (active LOW)) 20-23地址输入端 (address inputs) 地址输入端 24：VCC 电源正 ( positive supply voltage ) ： 电源正
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The proposed method doesn't need hardware synchronization circuit and can perform the calculation of fundamental positive sequence component of the supply voltage in real time.
这种方法不需要硬件同步电路，能实时地计算电源电压中的基波正序分量。
Depending on the polarity of an ESD event you apply to the circuit's input connector, its high-voltage spike discharges through diode D1A or D1B into the positive or the negative power-supply rail.
依靠ESD适用电路输入连接器的极性，其高电压放电通过二极管d 1a或d1b进入供电正向或负向电源。
Surface activation: activation plating must take positive power supply, plating document connected with negative voltage 8-15v, time, 60-90s.
表面活化处理：活化时镀件必须接电源正极，化工泵镀笔接负极，电压8 - 15v，时间60 - 90s。
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