| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless power transmitter that causes inductive coupling with a variable magnetic field at a low cost.SOLUTION: A wireless power transmitter 101 drives a coil 11a of power feeding means directly or through a transformer 33 from an AC power supply of a given frequency including a commercial frequency. The wireless power transmitter 101 uses coils in a non-resonant state at least for both of the coil of the power feeding means and a coil 12a of power receiving means, and uses simple adjustment and control means for efficient transmission of wireless power.SELECTED DRAWING: Figure 1 |
