| 摘要 |
<p>PURPOSE: To always apply a constant voltage to other loads being driven even when part of a plurality of loads fluctuates by supplying a constant current to the feeder lines from a power source section and, at the same time, providing a constant-current circuit section and constant-voltage converting section between pickup sections which are inductively coupled with the feeder lines and the loads. CONSTITUTION: In a monorail type carrying system which drives a plurality of carriers 2, a prescribed high-frequency sine-wave constant current is supplied to feeder lines 12d and 12e from a power source section. In each carrier 2, a pickup resonating circuit 51 changes the electric power induced in a pickup coil 24g to a constant current and an impedance converting section 52 converts the constant current into a constant voltage and supplies the constant voltage to a motor M through a full-wave rectifying circuit 53 and smoothing circuit section 54. Even when the load of one motor M fluctuates, theretore, the influence of the fluctuation on the driving state of other motors M being driven can be prevented by always applying constant voltages across the other motors M.</p> |
