Patent ID: 8907526
Filing Date: 2014-12-09
Classification: H01F,H02J

Abstract:
1. A power supply system for supplying power from a fixed body placed in a power-supplying region, via a movable body placed in a power-consuming region, to a predetermined load, wherein the fixed body comprises: a first power-transmitting electrode and second power-transmitting electrode to which AC power is supplied and are configured to be placed at a position in the neighborhood of the interface between the power-supplying region and power-consuming region; and an AC power supply to supply power to the first power-transmitting electrode and second power-transmitting electrode, wherein the movable body comprises: a first power-receiving electrode and second power-receiving electrode to be placed in a manner opposed to and not contacting the first power-transmitting electrode and second power-transmitting electrode with the interface interposed therebetween; a first capacitor and first coil connected to each other in parallel between the first power-receiving electrode and second power-receiving electrode, wherein, while a first coupling capacitor is formed when one of the first power-receiving electrode and second power-receiving electrode is placed in a manner opposed to the first power-transmitting electrode, a second coupling capacitor is formed when the other one of the first power-receiving electrode and second power-receiving electrode is placed in a manner opposed to the second power-transmitting electrode, wherein the AC power supply transmits power to the load via the first and second coupling capacitors under a condition that causes parallel resonance between the first capacitor and first coil.