| 摘要 |
An apparatus for controlling a power source in a mobile electronic unit using a variety of types of batteries that have different nominal voltages is provided. The apparatus includes a battery unit, a switch unit, which is connected to the battery unit and turns on or off the mobile electronic unit according to user's manipulation, a detection unit, which detects a turn on or off of the switch unit depending on the existence of an input voltage, a first power source unit, which is connected to the battery unit, generates n-channel voltages to then be supplied to elements of the mobile electronic unit, a control unit, which controls the first power source unit and the elements of the mobile electronic unit according to the operation of the detection unit; and a second power source unit to which one channel voltage among the n-channel voltages generated in the first power source unit is applied and which regulates the applied voltage and applies the regulated voltage as an operational voltage of the control unit. |
