Essentially, the circuit for electrifying a perimeter fence that is shown here is a high voltage pulse generator. The extremely high voltage comes from an ignition coil used in many […]
Compact Automatic Night Lamp Circuit
Without the need for a large transformer, this transformerless solid-state automated night light turns on certain LEDs at night and turns them off in daylight hours. This article explains methods […]
4 Watt LED Driver Circuit Using IC LM338
This five-watt LED driver uses the IC LM338 to safely light a four-watt LED in a constant current circuit mode. As is well known, the integrated circuit LM338 is an […]
10 LED Simple Roulette Wheel Circuit
This is an example of a very basic 10 LED roulette wheel circuit. When the button is pressed, the LEDs begin to rotate (sequence) at full speed and then progressively […]
Transistorized Music Level Indicator Circuits for Amplifiers
A series of LEDs is illuminated successively in a push-pull switching fashion in response to an audio source, indicating the different intensities of the music. This type of indication is known […]
How to Generate Infrared LED Flood Light
A circuit configuration that uses infrared frequency to provide lighting over a large area is called an infrared flood lamp. Although completely undetectable to the human eye, this infrared-illuminated region […]