| 摘要 |
A power transmission device includes an AC power generator for generating an AC voltage and applying it to first and second power transmission electrodes. A controller controls the AC voltage applied to the first and second power transmission electrodes. To this end, the controller monitors the voltage on the first electrode and determines how that voltage changes at the beginning and end of each of a plurality of predetermined time intervals, monitors the voltage on the second electrode and determines how that voltage changes at the beginning and end of each of the plurality of predetermined time intervals, and determines when to cut off the application of the AC voltage to the first and second power transmission electrodes as a function of the manner in which the voltage on those electrodes changes at the beginning and end of at least one of the predetermined time intervals. |
