| 摘要 |
PROBLEM TO BE SOLVED: To reduce a power loss in shunt resistance in the case a battery discharges large current and to make it possible to automatically start an information processor immediately when a commercial power source is returned in a state of stand-by after closed shop operation is executed in service interruption. SOLUTION: An ON signal is inputted in an uninterruptible power 6 from an automatic power closing control section 8 to switch a switching transistor Q1, and reference value of discharge final voltage of a comparator is changed. Inverters 3 and 4 are respectively used exclusively for the automatic power closing control section 8 and an information processor main body 9, and as long as an information processor 10 is started, until a commercial power source 1 reaches battery 7 discharge final voltage value, the inverter 3 is made to function even during the service interruption. |
