| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission system capable of calculating the amount of positional deviation between a power transmission antenna and a power receiving antenna with a simple configuration.SOLUTION: A power transmission system in which electric energy is transmitted via an electromagnetic field from a power transmission antenna 140 to a power receiving antenna 210 comprises an inverter part 130, a power-transmitting side control part 150, the power transmission antenna 140, the power receiving antenna 210, a power-receiving side rectification part 220, a power-receiving side voltage step-up/step-down part 230, a battery 240, a power-receiving side control part 250, a detection part for detecting input voltage of the step-up/step-down part, a detection part for detecting input current of the step-up/step-down part, and a battery voltage detection part for detecting voltage of the battery 240. When the inverter part 130 is controlled in a prescribed mode by the power-transmitting side control part 150, the power-receiving side control part 250 calculates the amount of positional deviation between the power transmission antenna 140 and the power receiving antenna 210, on the basis of a first voltage detected by the voltage detection part at a first time and a second voltage detected by the voltage detection part at a second time that is a time when a prescribed time has passed from the first time. |
