WIRELESS POWER TRANSMISSION CONTROL DEVICE, POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To rise power of a power transmission device while suppressing loss to a low level.SOLUTION: A wireless power transmission control device according to an aspect of the present invention comprises: an input part; an output part; and a wireless power transmission control part. The input part receives a first power information item representing power transmitted by a power transmission device. The input part receives a second power information item representing power received by a power reception device. The output part outputs a first control signal configured to instruct a power transmission voltage of the power transmission device. The output part outputs a second control signal configured to instruct an impedance of the power reception device. The wireless power transmission control part generates the second control signal such that a difference between the first power information item and the second power information item becomes small, and generates the first control signal such that a difference between the first power information item and a first target value becomes small, or a difference between the second power information item and the second target value becomes small.