Contactless power supplying system with power limiting control

摘要

Provided is a contactless power supplying system which is efficient and can be built of small coils by appropriately limiting power to be inputted into a transmitting coil. In the contactless power supplying system, power transmitted from a transmitting coil is received by a receiving coil by means of magnetic coupling, and the contactless power supplying system includes a power control unit configured to cause power from a power source to flow through the transmitting coil and a control unit configured to perform power limiting control of limiting the power flowing through the transmitting coil by controlling the power control unit.

主权项

1. A contactless power supplying system comprising:
a transmitting coil configured to transmit power; a power control unit configured to cause power from a power source to flow through the transmitting coil; a receiving coil configured to receive the power transmitted from the transmitting coil by means of magnetic coupling; a load to which power outputted from the receiving coil is inputted; and a control unit configured to perform power limiting control of limiting the power flowing through the transmitting coil by controlling the power control unit, wherein the control unit is further configured to select a control mode to be employed for the power limiting control based on a coil coupling condition between the transmitting coil and the receiving coil and a magnitude relationship between an induced current and a receiving coil current.