| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it possible to turn on or off electric power supply to an auxiliary inductive line without stopping a power supply and with a simple configuration, and to make the rating current of a switch small. <P>SOLUTION: A non-contact power supply facility comprises: a power supply 12 for outputting AC constant current to a main inductive line 21 at a prescribed oscillatory frequency; a primary coil 22 provided on the main inductive line 21 connected with the power supply 12; a secondary coil 23 forming an insulation transformer with the primary coil 22, and connected with an auxiliary inductive line 26 in parallel; a resonance capacitor 27 connected with the secondary coil 23 in parallel, and forming a parallel resonance circuit 28 with the auxiliary inductive line 26; and a switch 29 provided between the secondary coil 23 and the parallel resonance circuit 28. The constants of the auxiliary inductive line 26 and resonance capacitor 27 are selected so that the resonance frequency of the parallel resonance circuit 28 is a frequency equivalent to the oscillatory frequency of the power supply 12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
