| 摘要 |
PURPOSE:To reduce power consumption by allowing a control means to control a changeover means based on information acquired through a communication means and selecting the combination of the connection of plural batteries so as to supply power to each section of the equipment. CONSTITUTION:A control means 6-2 controls a changeover means 7-2 based on information acquired by a communication means 5 to select combination of the connection of plural batteries 7-1 and to supply power to each section. Thus, a comparatively higher voltage is applied to each section at the time of transmission and reception depending on the combination of batteries and a comparatively lower voltage is applied to each section in the standby state depending on the combination of batteries. Since a lower voltage is applied to each section in the standby state in which a high voltage is not required, power consumption is less. |
