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阐述无环流可控硅低频电源电流检测的重要性，给出了该装置电流检测环节框图，还简要说明了ＬＥＭ电流传感器原理、主要特点，并给出了放大电路和绝对值电路及其主要参数，该电流检测环节在ＤＫＷ－２－５型无环流可控硅低频电源装置上应用良好
The importance of current detection of non-circulating thyristor low-frequency power supply is described. The block diagram of current detection of this device is given. The principle and main features of LEM current sensor are also briefly described. The amplifying circuit, absolute circuit and its main parameters , The current detection link in the DKW-2-5 type non-circulating SCR low-frequency power supply unit applied well