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constant current Basic schematic help – Circuit Schematic
constant current Basic schematic help
Design a lighting circuit for an indoor garden, and I`m not understanding things that seem like they`re really basic, so I need some help. The schematic I`m ref...
pcb Driving 10x10 LED matrix with AVR – Circuit Schematic
pcb Driving 10x10 LED matrix with AVR
Designing a controller PCB for a 10x10 white LED matrix clock (inspired by the tutorial here ). It`s based off an ATmega328 AVR IC and Maxim DS3234 SPI RTC. How...
ac Trouble with triac driven dimmer circuit – Circuit Schematic
ac Trouble with triac driven dimmer circuit
The triac should flip on and the light and it should be at nearly 100% brighness. However, this is not what`s happening. Itstead, the light doesn`t turn on at a...
How does LED Flashes One by One in my Project Some Queries – Circuit Schematic
How does LED Flashes One by One in my Project Some Queries
A project called LED Flasher which Flashes LED`s one by one . but I have following Query about my project . if anyone can explain me it in simple words it will ...
PWM to vary the light intensity of a 220V bulb – Circuit Schematic
PWM to vary the light intensity of a 220V bulb
220V bulb where one end of the relay is connected to the 220V dc and the other end to ground; and is switched one to the other using the output of a PWM as show...
audio How to make LED bar graphs to measure intensity – Circuit Schematic
audio How to make LED bar graphs to measure intensity
Make those LEDs into LED bar graphs that will show the intensity. For example, I want a song with a loud base to make the bar graph shoot up to the top. The bar...
Triple LED has only 4 terminals – Circuit Schematic
Triple LED has only 4 terminals
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Power LED Driver Circuit – Circuit Schematic
Power LED Driver Circuit
Here`s a really simple and inexpensive Power LED driver circuit....
Mains Powered White LED and Grand Prix Starting Lights circuit – Circuit Schematic
Mains Powered White LED and Grand Prix Starting Lights circuit
Did it ever occur to you that an array of white LEDs can be used as a small lamp for the living room If not, read on. LED lamps are available ready-made, look e...
Nite Rider Lights – Circuit Schematic
Nite Rider Lights
As a keen cyclist I am always looking for ways to be seen at night. I wanted something that was a novelty and would catch the motorists eye. So looking around a...
White LED Voltage Booster Uses 555 Timer IC – Circuit Schematic
White LED Voltage Booster Uses 555 Timer IC
This voltage-booster circuit for driving one or more white LEDs uses a 555 timer as its main element ( see the figure ). The timer, IC1, functions as a resettab...
10 LED vu meter – Circuit Schematic
10 LED vu meter
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Running Message Display – Circuit Schematic
Running Message Display
Light emitting diodes are advan- tageous due to their smaller size, low current consumption and catchy colours they emit. Here is a running message display circ...
LDR Pole Light Switch – Circuit Schematic
LDR Pole Light Switch
My vintage (62 year old) pole light has always been controlled by a timer ”a source of continual frustration due the requirement of readjustment for the ever-...
LED Brake/Rear Light Specifically for motorcycles Circuit diagram – Circuit Schematic
LED Brake/Rear Light Specifically for motorcycles Circuit diagram
LEDs are used more and more in motor vehicles, replacing the standard incandescent lamps because they are more energy efficient and have a much longer life expe...
All-analog automatic night light circuit – Circuit Schematic
All-analog automatic night light circuit
Some ten days ago I installed an all-linear automatic night light circuit to control the lights inside the living room. Circuit consists of three op amps-two us...
4 LED VU meter LM324 – Circuit Schematic
4 LED VU meter LM324
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super bright led lamp driver circuit – Circuit Schematic
super bright led lamp driver circuit
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white led lamp circuit – Circuit Schematic
white led lamp circuit
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Lighting Circuits Connections for Interior Electrical Installations – Circuit Schematic
Lighting Circuits Connections for Interior Electrical Installations
Electrical lines which include lighting circuits begin from the main distribution panel of the installation and each line contains three conductors: phase, neut...