Power source filter circuit that is capable of eliminating noise component supplied from power source and driving noise component generated from induction load simultaneously

摘要

The power source filter circuit is provided with a first inductor and a second inductor connected in series between an input terminal and an output terminal, a first capacitor connected between the input terminal and a reference potential point, a second capacitor connected between a contact point that connects the first inductor with the second inductor and the reference potential point, a third capacitor connected between the output terminal and the reference point, and a first resistance and a second resistance having a small resistance value connected to the second inductor in parallel respectively.