| 摘要 |
PROBLEM TO BE SOLVED: To correctly detect that a slave unit is erroneously placed with respect to a master unit.SOLUTION: The slave unit 20 transmits a salve unit identification code to the master unit 10 with a pulse signal superimposed on charging power fed from the master unit 10, and the master unit 10 compares the slave unit identification code received from the slave unit 20 with the pulse signal with a master unit identification code, and detects the erroneous placement of the slave unit 20 in accordance with the comparison result. |
