| 摘要 |
PURPOSE:To save an energy consumption and to prolong the service life of an electric discharge lamp by impressing a low voltage for maintaining discharging for a prescribed time and repeating this operation intermittently after starting lit up with a high voltage. CONSTITUTION:A voltage signal is generated with a prescribed timing from a timer 12 connected to a battery 11. With a signal V1 of 1, a self-traveling multivibrator 15 outputs the voltage signal for a constant time at a prescribed period and a voltage amplifier 16 gives the high voltage sufficient to re-ignite a fluorescent lamp 18. The self-travelling multivibrator 15 outputs a prescribed time voltage signal with a same prescribed period, a delaying circuit 17 delays for a constant time from the voltage signal of a vibrator 13, and the voltage amplifier 16 generates the low voltage to the extent to be able to discharge and maintain with the fluorescent lamp 18 for a prescribed time and adds it to the fluorescent lamp. By this constitution, the energy consumption can be saved and the service life of the fluorescent lamp can be prolonged. |
