好消息是，自2010年以来，成本已经降低，而且有越来越多的地方可以给汽车充电。
Good news is that the cost has been lower and there are more and more places for the cars to get electricity ever since 2010.
为满足脉冲电源重复频率运行时直流电源的稳压性问题，设计了晶闸管快速充电自停自补单元，同时也提高了整个电源系统的效率。
In the case of repetition mode of the pulse power supply, Fast charging circuit is designed to enhance the stabilize and charging efficiency of the DC power supply.
给出了大功率不间断电源(ups)的充电电路系统结构，设计出模糊自整定PID控制器。
This paper presents the basic structure of High-power UPS charging system and describes the design of a self-tuning PID controller.
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