The following triac/diac based mains operated LED flasher circuit which is actually an astable multivibrator circuit utilizes only a diac and resistor arrangement for implementing interesting wig wag flashing of two LEDs. The simple 220V flasher circuit was shared with me by Mr.Vineesh, who is one of the keen followers of this blog. I would […]
LED
Light Dependent LED Intensity Controller Circuit
In this post I have explained a simple ambient light dependent LED illumination controller circuit. The light fades or intensifies proportionately i response to the ambient light conditions. With brighter daylights, the LEd illumination gets softer and vice versa. The idea was requested by one of the dedicated members of this blog. Technical Specifications While […]
10 Simple LED Chaser Circuit Diagrams Explained [Knight Rider, Scanner, Reverse-Forward, Cascaded]
In this article I have explained the construction of 10 interesting yet simple LED chaser circuits, which not only create beautiful running light effect but are also easy to build. We also discuss how to modify these into a design popularly known as “knight rider” chaser circuit. These primarily incorporate LEDs as well as mains […]
Infrared (IR) Controlled LED Emergency Lamp Circuit
Here I have explained a an emergency lamp circuit which includes an infrared remote operated brightness control feature. The idea was requested by Mr. Heeran Technical Specifications Can you please help me with two circuits. I want to build a backup led emergency lamp that works via an infrared remote . I want it to […]
Simple 4 Watt LED Driver Circuit Using IC 338
This 4 watt LED driver is a device that will illuminate a 4 watt LED safely through a constant current circuit using the IC LM338. The IC LM338 as we know is a highly versatile device when it comes to controlling voltages and current levels. Circuit Configuration In the present design, the device is configured […]
LED Strobe Light Circuit with Chasing, Flashing Effects
The proposed LED strobe light circuit will not only flash a group of LEDs with strobe pulses, but will also create a sequentially chasing effect over the strobing LEDs. You might be quite familiar with colorful LED strobe lights, and should have seen them pretty commonly in parties and discotheques. Let’s see how we can […]