Patent ID: 8198754
Filing Date: 2012-06-12
Classification: H02J

Abstract:
1. A power transmission control device that controls power transmission of a power transmitting device of a non-contact power transmission system, the non-contact power transmission system transmitting power from the power transmitting device to a power receiving device by electromagnetically coupling a primary coil and a secondary coil, and supplying the power to a load of the power receiving device, the power transmission control device comprising: a driver control circuit that controls a power transmitting driver that drives the primary coil; a load state detection circuit that detects a power-receiving-side load state; and a control circuit that controls the power transmission control device, the control circuit acquiring a reference value in a reference value acquisition period, the reference value being used to determine the power-receiving-side load state after starting normal power transmission, the reference value acquisition period being a period after receiving ID authentication information from the power receiving device, but before starting the normal power transmission.