Contactless power supply apparatus and contactless power receiving apparatus, and contactless power transmission system provided therewith

摘要

Non-contact power supplying appliance (100) includes a plurality of power supply units (1), communication unit (5) that sends and receives a communication packet, and controller (2) that controls the power supply units and the communication unit, in order to contactlessly transmit power to non-contact power receiving appliance (200). Communication unit (5) sends a response-request message for placement detection, and thereafter receives a corresponding response message, so that communication unit (5) completes placement detection of non-contact power receiving appliance (200). After sending a response-request message for identifying a placement location of the non-contact power receiving appliance, communication unit (5) receives a corresponding response message, so that controller (2) identifies a combination of non-contact power receiving appliance (200) and some of power supply units (1). Controller (2) controls power supply unit (5) in accordance with a corresponding response message received by communication unit (5) after communication unit (5) sends a response-request message for power control. According to the present aspect, high-precision communication and safe power transmission become possible.