| 摘要 |
<p>PURPOSE:To reduce consumption power and to reduce the number of batteries by operating normally the titled unit at a low voltage, boosting a battery voltage only when a processing is generated and generating the voltage required for an information processing circuit to operate. CONSTITUTION:At a normal time when only an input/output control circuit 2 operates, the battery voltage 7 which is the low voltage is supplied as it is. When the processing is required and the input/output control circuit 2 starts the information processing circuit 1, a voltage control circuit 3 receives a start signal from the input/output control circuit 2, operates a boosting circuit 4 and boosts the supply voltage for the circuit. When the processing terminates, the voltage is controlled so as to be lowered.</p> |
