Two mode night light circuit

admin January 24, 2012 7 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....
read more

Flasher Circuit using NE 555

admin October 30, 2018 30 Comments
In this project, we’re building a simple Lamp Flasher circuit using NE 555. A lamp flasher is nothing but a lamp dimmer circuit – where the lamp is turned ON/OFF at set frequency or time intervals. We’ve designed this circuit using the most popular and common components like the NE/SE 555 IC. Let’s begin our journey to build a lamp flasher circuit using 555 IC. Description This is the circuit diagram of lamp flasher operated from mains. By this...
read more

Automatic LED Emergency Light Circuit

admin October 23, 2018 330 Comments
LED Emergency Light An Automatic LED Emergency Light circuit is designed to turn ON when there is no adequate lighting or if the power supply is cut-off. Earlier fluorescent lights were used to build such circuits. But the use of LED’s have proven to provide adequate lighting for a longer period before draining the battery. We have developed three circuits under Automatic LED Emergency Light. Two of them are designed by Mr. Seetharaman, a very valuable and important contributor...
read more
Lamp dimmer circuit

Touch Dimmer for Lamps

jacky October 16, 2018 5 Comments
Touch Lamp Control Dimmer This is an interesting project where the intensity of a lamp can be controlled by touch. Most lamps only have an on/off switch. They don’t have any regulators to increase or decrease the intensity of lighting. Having such a built-in feature is available for some expensive lamps. But the same can be achieved without emptying your wallet if you have the know-how of basic electronics. If you have a wall mounted lamp one easiest way...
read more