| 摘要 |
<p>PURPOSE:To efficiently use a battery and to extend the available voltage range by preventing a power consuming device from being used in case of the detected battery voltage value smaller than an unavailable voltage value and performing the processing in an available/unavailable judgement executing means otherwise. CONSTITUTION:A battery driven electronic apparatus provided with plural power consuming devices is provided with a battery voltage detecting means X which detects the current value of the voltage supplied from the battery, a data storage means Y in which data of information related to at least unavailable voltages of plural power consuming devices is stored, and an available/ unavailable judgement executing means Z which compares the detected value of the battery voltage detecting means with data of the device stored in the data storage means Y in response to the use request of this device out of plural power consuming devices and judges whether the device is available or not. Thus, the use efficiency is improved, and a minimum voltage value can be set to a lower value and the available voltage range is extended because there is no fear that the data saving processing is not executed by CPU reset due to quick voltage drop.</p> |
