The advantages of this method are that it's fast and, depending on the power supply voltage and insulating materials, it allows measuring extremely high resistance.
这种方法的好处是速度非常快，根据电源电压和所用绝缘材料的情况，使用这种方法可以测量阻值极高的电阻。
A three phase half controlled bridge circuit with constant current and high efficiency is designed in the charged loop of the welding power supply. So a limiting current resistance is canceled.
在焊接电源的充电回路中设计了三相桥式半控、恒流高效充电回路，取消了限流电阻；
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