| 摘要 |
PURPOSE:To make it possible to use a battery effectively by shutting off an oscillation circuit and frequency divider circuit and other circuits from the battery at starting an accessory mechanism that requires a large starting current and supplying them condenser current. CONSTITUTION:When output is generated from a drive circuit DR2 at a desired time, a switch S is controlled through a timer circuit TM during the timer period so as to shut off a dribe circuit DR1 and other circuits that include a clock pulse generator CL, a frequency divider circuit, etc. from a power source battery E, and those circuits operate normally by the discharge current of a condenser C. Diring the timer period of a certain length a transistor T is turned ON through the circuit DR2, and accessory mechanism of a motor M2 and so on that require a large starting current are supplied a large current from the battery E. Voltage drop in the battery E due to this curent has no effect on the generator CL, the circuit DR1, etc. Accordingly, if the shut-off of the switch S is restored after the timer period is passed, whereupon the accessory mechanism becomes stable and the mormal voltage is left in the battery, the battery E has not to be replaced; it can be used continuously with the result of effective use of battery. |
