集成电路电源，胶印，双电压比较器。
数字控制器存在采样与计算延时，实时控制性差，采用数字控制器实现双闭环瞬时值控制比较困难。
But it is hard to realize the dual-loop instantaneous control with digital scheme, because there is delay time of sampling and computing and lack of real-time regulation for digital control.
它是继零磁通电流互感器、双级电流互感器和电流比较仪之后的又一种新型的电流比例标准。
It is a new current ratio standard after the zero flux current transformer, two stage current transformer and current comparator.
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