DOES NOT REQUIRE AN EXTERNAL POWER CONNECTION AUTOMATIC CONTROL LOOP SHIELD APPARATUS

摘要

PURPOSE: A loop switching device for an automatic switcher is provided to actuate a circuit of a controller block without a separate power supply device, thereby reducing the unit cost of an electric vehicle. CONSTITUTION: A connecting unit connects a part of a cable for offsetting magnetic field to a rectifier. A current connecting unit delivers the current in the rectifier to a controller block. The controller block includes an EMF amplitude detector. A capacitor block includes a switch array and a capacitor array. [Reference numerals] (AA) Power supply