Attenuator Noise Reduction Amorphous Choke for Audio Systems

摘要

Presently, EI type choke coils have been used for the reduction of attenuator noise in car audio system. Due to its high leakage inductance and its adverse effect on performance of cassette deck and PCB, EI coil was mounted externally.In this report, low leakage inductance troidal of type amorphous choke coil was evaluated.As a result, the leakage inductance can be reduced and the devise can be mounted, internally.