| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact power transmission/reception system capable of improving efficiency of power transmission correspondingly to a variation factor of transmission efficiency while suppressing the system's enlargement and increase in cost.SOLUTION: A non-contact power transmission/reception system comprises: an inverter 1 for generating high frequency voltage; a voltage/current sensor 12 for detecting phase difference between the inverter 1's output voltage and output current; a power transmission coil 21 connected to the inverter 1; a power reception coil 22 for receiving power in a non-contact manner from the power transmission coil 21; a rectification circuit 4 connected to the power reception coil 22; and control units 5, 6 for controlling the inverter 1 and the rectification circuit 4. The inverter 1 includes arms 1A, 1B; the rectification circuit 4 includes arms 4A, 4B. The control units 5, 6, depending on the phase difference detected by the voltage/current sensor 12, adjust at least either of switching timing of the arm 1B of part of the inverter 1 and that of the arm 4B of part of the rectification circuit 4. |
