Archive for category: Lighting Circuits Diagram

LED brightness control circuits

Lighting Circuits Diagram | By: Diagram mania

It’s easy to alter the brightness of an LED simply by varying the current through it. Or you can keep the current constant at a fairly high value and vary the brightness by varying the percentage of time for which the LED is on. In other words, use pulse width modulation to control the brightness. […]

Light flasher/blinker circuit diagram

Lighting Circuits Diagram | By: Diagram mania

This is a very basic circuit for flashing one or more LEDS and also to alternately flash one or more LEDs. It uses a 555 timer setup as an astable multivibrator with a variable frequency. With the preset at its max. the flashing rate of the LED is about 1/2 a second. It can be […]

audio light modulator/sound controlled light circuit diagram

Lighting Circuits Diagram | By: Diagram mania

 Audio light modulations add to the enjoyment of music during functions organised at home or outdoors. Presented here is one such simple circuit in which light is modulated using a small fraction of the audio output from the speaker terminals of the audio amplifier. The output from the speaker terminals of audio amplifier is connected […]

alternating flasher circuit diagram

Lighting Circuits Diagram | By: Diagram mania

This circuit uses three easily available 555 timer ICs. All three work as astable multivibrators. The first 555 has an on period and off period equal to 1 sec. This IC controls the on/ off periods of the other 2 555s which are used to flash two bulbs through the relay contacts. The flashing occurs […]

3V LED Chaser

Lighting Circuits Diagram | By: Diagram mania

General There are many 9V chaser circuits that seem to waste about 7V when driving LEDs that are only about 2V. This project is unique, because it uses only two inexpensive alkaline battery cells totaling 3V for power. Since most of the waste is eliminated, the cells last a long time. Unlike the other circuits, […]

High Power LED mood Lamp

Lighting Circuits Diagram | By: Diagram mania

  Introduction   In this page we will introduce a great project designed by Toon Beerten. His project named "DIY Led Mood Lamp" can become a very interesting add-on for your room that’s absolutely sure it will impress everyone. As you can see on the photos, we talk about a color fading lamp, that looks […]

How to make a LED Flashlight bulb – for 2, 1.5 volt batterie

Lighting Circuits Diagram | By: Diagram mania

Here is how to make a regular flashlight bult into a LED light bulb. I use these red LED bulbs when I do astronomy because red light does not ruin you night vision. In some locations, you will be literally run off the observing field if you use a white light flashlight. The bulb is […]

Audio VU meter 9 leds

Lighting Circuits Diagram | By: Diagram mania

Circuit provided by Buy a similar (5 LED) circuit as a kit from Anykits Specifications 5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses SUPPLY 12V DC @ 50mA PR1 REF SET PR2 AUDIO LEVEL SET Schematic Parts List PCB […]

Direct Coupled 15 Watt Amp

Lighting Circuits Diagram | By: Diagram mania

LDR & LED Pair Smoke Detector and Alarm by LM1801

Lighting Circuits Diagram | By: Diagram mania

Description Smoke detectors are generally used in advanced alarm systems. Most of this professional devices use gas-detectors, ionization rooms or radioactive elements as sensors. In this circuit we are not using any of this complicated components. Instead of these, we are using two LDRs and one LED. LM1801 special-purpose IC ,which is designed especially for […]