| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power feeding device wherein the polarity of a predetermined direct-current voltage applied between conductor lines together with the other power feeding device is automatically uniformed. <P>SOLUTION: When started, the power feeding device 1 sets a delay time and starts to clock (S1). When a preset delay time lapses, it applies a voltage Vd (S2). When an overcurrent is detected within a predetermined time after the application of the voltage Vd (S3: YES), it changes the polarity of the applied voltage (S4). When a predetermined has passed after the power feeding device has been started, it starts the application of a voltage Vs. <P>COPYRIGHT: (C)2007,JPO&INPIT |
