Two mode night light circuit

admin January 24, 2012 5 Comments
 Description. Here is a versatile night light circuit that can be used in two modes. The dimmer mode and a flashing mode. The circuit is based on dual opamp LM 358  and associated components. The first opamp IC1a is wired as a pulse generator and the second opamp is wired as a comparator. When the switch S1 is open the circuit is in dimmer mode where the intensity of the lamp can be varied by varying the POT R9....
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Flasher Circuit using NE 555

admin November 16, 2011 30 Comments
Lamp Flasher using NE 555 Description This is the circuit diagram of lamp flasher operated from mains. By this you can flash up to 200 Watt lamps at rates determined by you. IC NE555 is wired as an astable multivibrator for producing the pulses for flashing the lamp. The flashing rate can be set by the value of resistors R2 & R3. Diodes D1 & D2 provides a half wave rectified regulated supply for the IC. Transistor T1 is...
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Automatic LED Emergency Light

admin January 23, 2018 322 Comments
LED Emergency Light We have developed three circuits under Automatic LED Emergency Light. Two of them are designed by Mr. Seetharaman, a very valuable and important contributor of this website. We have listed the circuits here for your ease of  reading. If you have any doubts; please comment with circuit name or circuit number. 1. Simple Emergency Light using LED 2. Automatic Emergency Light using LM317 IC 3. Modified Version of Automatic LED Emergency Lamp using LM 317 1....
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Touch Dimmer for Lamps

jacky April 20, 2011 4 Comments
Touch Control Lamp Dimmer Description This is a simple touch dimmer circuit made of IC TT6061 . TT 6061 is specifically designed for this purpose.By touching this touch dimmer you can increase the light intensity of incandescent lamps in three steps At first, when mains  is ‘on,’ the lamp is ‘off’. When you touch the  plate, the lamp glows dimly. At second touch, the bulb gives medium light. On the third touch, the bulb is driven fully.Next touch puts...
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