| 摘要 |
<p>PURPOSE: To obtain a noncontact power transmitter in which the cost is reduced, while enhancing power transmission efficiency, by simplifying the structure and decreasing the number of components. CONSTITUTION: A transmission unit 10 and a receiving unit 20 are constituted separately wherein the transmission unit 10 comprises a first transmission coil section 14, a second transmission coil section 15, and a push-pull transistor circuit 34 for receiving power from a DC power supply 30 to generate high frequency power. The first transmission coil section 14 comprises two windings P1, P2 for transmission whereas the second transmission coil section 15 comprises two windings P3, P4 for transmission and all windings P1, P2, P3 and P4 for transmission are connected in series. The receiving coil 20 is provided with first and second receiving coil sections 23, 24 being coupled electromagnetically with respective coil sections to induce voltage.</p> |
