Published:2011/6/8 8:18:00 Author:Christina | Keyword: blackout , floodlight | From:SeekIC
When the children are studying at night, once the blackout, the children can see nothing in the study room, it is not safe. The blackout floodlight circuit which is composed of the light-emitting diode can solve this problem. This light uses the batteries as the power supply, the power consumption is very small, you can put it on the top of the desk, if it is blackout, the light-emitting diodes will turn on automaticly to supply strong enough light, so the children can walk out of the room. In order to reduce the power consumption, the LEDs use the flash illumination mode. The IC1 uses the CMOS integrated circuit CD4093. The VT1 and VT2 use the audion BC547. The LED1 uses the Φ8mm white light-emitting diode, the other components are as shown in the figure.
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