An Apparatus lessening electromagnetic wave for power switch element using amorphous core

摘要

The present invention relates to an electromagnetic wave reduction device for a power switching device using an amorphous core, and the configuration includes a plurality of read devices of JT (Junction Transistor), MOS-FET, IGBT (Insulated Gate Bi-Polar Transistor), and DIODE. A switching element that is applied to the power conversion circuit of a switching power supply, step-up converter, and step-down converter to block or conduct a switching operation, a through hole is formed, and iron (Fe) + boron (B) + silicon (Si) Amorphous magnetic material with increased electrical conductivity by rapidly cooling the mixed molten metal is wound and cut into a cylinder by winding the material in the form of a thin film. Various components of an amorphous core, resistor, coil, and capacitor assembled on the board are built-in and wired between the layers on the surface of the printed wiring board, and the switching element is built-in and mounted between the layers inside the printed wiring board. A PCB substrate in which a high-frequency current generated during switching of a high-power switching device is controlled through an amorphous core, ringing noise generated according to the inductance of a circuit or a switching current, a switching frequency condition, and a switching mounted and wired on the PCB substrate It interlocks with the device and the amorphous core and includes a processing unit for controlling ringing noise induced in the switching device according to the operation of the PCB board. Accordingly, the present invention provides the effect of absorbing or suppressing the switching noise of the switching element by inserting an amorphous core having a through hole in the lead of the high-power switching element, which is the source of the switching noise generated during high-power switching. do.