| 摘要 |
PURPOSE: A sound device having a pedestrian operation signal and a control method thereof are provided to unnecessary power consumption by using a plurality of power input units. CONSTITUTION: A user interface(115) receives a user command for pedestrian. A first power input portion(112) receives an AC voltage. A second power input portion(114) receives DC voltage. A controller(111) controls a DC voltage to be supplied to the user interface. The controller rectifies the AC voltage to the DC voltage. The controller controls the rectified DC voltage to be supplied from the user interface. |
