Patent ID: 8766591

Claim:
A resonance type non-contact electrical power feeding apparatus comprising: a primary LC resonator that receives a power from a power source; a secondary LC resonator arranged separated from and in a non-contact manner with respect to the primary LC resonator, the secondary LC resonator receiving a power from the primary LC resonator through magnetic field; a charger that receives the power from the secondary LC resonator; a detecting section that detects a reflected power from the primary LC resonator to the power source; and a control section that stops the power source when the value related to reflected power detected by the detecting section reaches greater than or equal to a predetermined threshold value, wherein the primary LC resonator and the secondary LC resonator each includes an inductor and a capacitor, and wherein the value related to reflected power is a ratio of a reflected power from the primary LC resonator to the power source with respect to an output power from the power source to the primary LC resonator.