Power supply filter for preventing noise signal from entering power supply circuit

摘要

In an R-C filter for preventing a noise signal from entering a power supply system through its output circuit, a circuit component acting as a resistive element for the filter is connected in series with the output circuit and a capacitive element is connected between one portion of the circuit component and ground to form an R-C type filter. A wiring member, a printed wiring foil, a through-hole member, a semiconductor device or other such circuit component can be used, as the circuit component acting as the resistive element for constituting the R-C type filter.