| 摘要 |
PURPOSE:To attain the supply and break sequences of outputs by the ON/OFF operations of a switch by controlling the supply sequence of the output by a monostable multivibrator and the break sequence of the output by the time constants of a load resistance and a capacitor respectively. CONSTITUTION:In a power supply mode, when the output voltage of a monostable multivibrator 8 which transmits a control signal of a relay 7 exceeds the level of the decided voltage owing to the time constants of external resistances R1-R4 and capacitors C1-C4, the switch of the relay 7 is turned on and the input voltage is supplied to each voltage transformer circuit 3. However the power supplying time can be set when the time constants of the R1-R4 and C1-C4 are varied. In a power break mode, the time when the voltage applied to a capacitor 5 provided on the output of the circuit 3 drops less than the level of the decided coltage can be defined as the breaking time of the output voltage. Then the power breaking time can be set when the time constants of a load resistance 4 and the capacitor 5 are varied. |
