Lighting Circuits
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PC based candle ignitor is a pc based verified project for computer student using 555 lighting candle using computer circuit diagram with software code in C ... -
Nowadays, a switch-off delay for the vehicle interior lighting is a naturally a standard feature. However, with certain models having only spartanttings, or older-model vehicles, you`re left sitting in the dark as soon as you climb in and close the door..... -
This circuit shows about 300-350W Lighting Control Circuit Diagram . Features: Cheap to build, Simple circuit, 120V AC voltages. Component: .... -
The success or failure of your lighting upgrade efforts rides on the quality of your parts and the quality of your work. It matters how carefully you route wires to avoid chafing insulation. It matters how well you solder connections (crimps and sloppy or.... -
The magnetic field built up in the ballast collapses quickly, producing a high voltage across the tube and causing the internal gas to conduct. It`s a bit like slowly blowing up a balloon and sticking a pin in it... -
The consumer unit (or electricity meter`) cupboard in some older houses is a badly lit place. If the bell transformer is also located in this cupboard, it may be used to provide emergency lighting by two high-current LEDs. These diodes are powered via a.... -
This circuit is the basis for the dimmers in a model theatre lighting system which uses touch globes as the light source. The circuit is based around a 55.... -
LED lighting, and the potential that it brings, is moving to the forefront of residential and commercial lighting markets. However, to maximize the success and adoption of solid-state lighting for retrofit lamps, the LED lamps should be capable of dimming.... -
This colorful back led aquarium lights gives natural appearance to the Aquarium tank. The Aquarium Led Lighting circuit automatically turns on at sunset an.... -
Faced with the situation to control the time that the light is turned on, engineer Radu Preda from Romania has started experimenting with different circuits to save money spent on electricity. He has designed 2 energy saving lighting circuits, the first one.... -
When a vehicle is driven on the highway at night, it is required that light beam should be of high density and should illuminate the road at a distance suf.... -
Most small internal-combustion engines commonly used in the model-building world use glow plugs for starting. Unfortunately, glow plugs have an operating voltage of 1. 5 V, while fuel pumps, starter motors, chargers and the like generally run on 12 V. This.... -
This circuit is the basis for the dimmers in a model theatre lighting system which uses touch globes as the light source. The circuit is based around a 555 timer, driving a Triac. All dimmers share the one power supply and zero-crossing detector. As it will.... -
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This application note discussed the use of SEPIC power modules to provide the power needed to drive high-brighness LED arrays. The arrays are used as display backlights and require a wide dimming range. The SEPIC approach provides an efficient and flexible.... -
Article for an LED driver design for automotive rear lights. Shows how dimming is best achieved with PWM and an LED driver IC that eliminates the need for external PWM signal.... -
The momentary switch used was rated for 10A for safty. If the switch was rated for too small a current, the instantaneous current for the first millisecond would fuse the switch contacts together. To achieve objective 3, some sort of switch that can vary.... -
A dimmer for individual LED bulbs. LEDs (light emitting diodes) are very sensitive components - exceed their rated current or voltage and their lifespan can be slashed from 50, 000+ hours to an eventful microsecond. LEDs are current-driven * which means that.... -
This article describes a lighting circuit that generates a glowing firebox effect and provides constant illumination forclassification lamps and an interior cab light. It contains all information needed to build the circuit including a detailed schematic,.... -
As the figure 15-24 shows, the controller circuit is composed of the switch type Hall integrated circuit DN838 and the astable multivibrator (composed of the 555), this circuit can be used in wide range of applications such as the automatic door opening,.... -
The diagram shows telephone control automatic lighting circuit. At night, when telephone rings or master takes up telephone transmitter dialing, the light can lighten; when telephone ringer stopped (no one listen) or on-hook, it can delay 10~40s, then the.... -
Before we describe how it`s done, note that we recommend that the result be checked as having sufficient brightness for a stop & tail-light application. That`s because the light output may be inadequate, depending on the tail-light lens and reflector....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
Note first the battery to be treated at the center of the figure. It is connected to contacts of...
Q1 and Q2 form a voltage amplifier which has sufficient gain to be overdriven by a rela-tively...
Virtually any NPN small signal transistor may be used in place of the BC 108 shown. Likewise any...
Often the frequency of a signal must be doubled: modulator/demodulator chip LM1496 is an ideal...
This circuit detects the 20-Hz approximately 86-Vrms ring signal on telephone lines and...
This circuit will switch off the line supply to audio or video equipment if there has been no...
A high efficiency simple 2-transistor VHF amplifier electronic circuit project can be designed...
We introduce an inverter today mainly by the MOS field effect tube, the ordinary power...
This is an a simple Tone Control Circuit using TDA1524A. Is the heart pillar in the work that is...
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This simple low power dc to ac inverter (dc to ac converter) circuit converts 12V DC to 230V or...
Relays are often used as electrically controlled switches. Unlike transistors, their switch...
As shown in Figure it is a temperature compensated with a negative voltage to follow the...