| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a noncontact power supply device that can automatically adjust the output voltage of a secondary-side unit even if there occur changes in load connected to the secondary-side unit, in interval between a primary-side unit and the secondary-side unit, and in the voltage of a commercial power supply connected to the primary-side unit. <P>SOLUTION: The noncontact power supply device comprises the primary-side unit and the secondary-side unit separated from the primary-side unit, and supplies power to the secondary-side unit 42 from the primary-side unit by electromagnetic induction in a noncontact manner. The noncontact power supply device also comprises an inverter circuit 6 at the output of a secondary-side winding housed in the secondary-side unit, and functions 7-9 that are arranged at the inverter 6 for making variable the means voltage of the output by pulse-width modulation. <P>COPYRIGHT: (C)2004,JPO |
