Power supply system for automotive parts having a rotary component.

摘要

A system for supplying power to automotive parts having a rotary component is disclosed, in which a pair of circular coils (30, 32) are in opposed relation to each other around a rotary shaft (4) of a rotor (15, 19). One coil (32) is fixed on rotor side, and the other coil (30) is fixed on stator side, thereby forming a DC/DC converter. Taking advantage of the fact that the rate of magnetic coupling between the coils is constant against the rotation of the coil on rotor side, stable power is supplied efficiently to the devices on rotor side in contactless fashion.