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HALL EFFECT CURRENT SENSOR
Used on general industrial application for current monitoring, Current measure on input stage batteries inverters and UPS application, servo motor and  frequency converter, Automotive, electric locomotive, renewable energy, railway system, energy saving

CHOKE COIL
Used in electronic circuit anti-interference components to inhibitory high frequency noise.

HF TRANSFORMER
Working frequency of power supply transformer is more than intermediate frequency(10 KHZ) , mainly used in high frequency switching power supply and also used in high frequency inverter power supplies and high frequency inverter welding machine.

CURRENT TRANSFORMER
Applied to the alternating current measurement, measurement of alternating current (ac) and electric drive circuit protection