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200, 600 LED String Circuit on Mains 220V

300 LED string light circuit

The post details the construction of a 200 to 600 LED project, using series parallel  LEDs for creating an alphabetical display sign board. The idea was requested by Mr. Mubarak Idris. Circuit Objectives and Requirements I need a blinking LED light that show”WELCOME TO” blink and then “COLLEGE OF ENGINEERING” base on my rough estimation … Read more200, 600 LED String Circuit on Mains 220V

How to Add a Dimmer Facility to a LED Bulb

In this article we learn how to make a dimmer circuit for LEDs bulbs and LED tubes which are intended to be operated with mains 220V or 120V. How LED Bulbs Work We know that our ceiling fans and incandescent bulbs can be easily controlled using triac dimmer switches, and we are quite used to … Read moreHow to Add a Dimmer Facility to a LED Bulb

SCR Shunt Circuit for Protecting LED Drivers

The post presents an effective method for protecting capacitive LED driver circuits through an SCR shunt regulator circuit and explains how it can prevent filter capacitors from blowing of and LEDs from getting destroyed. The remedy was requested by Mr. Max Payne. Protecting High Watt LEDs Please suggest regarding 3W, 5W LED bulb circuit design fault. … Read moreSCR Shunt Circuit for Protecting LED Drivers

LED Brake Light Circuit for Motorcycle and Car

The post explains how to make and replace existing bulb type brake lights in vehicles with high efficiency LED lamps.The idea was requested by Mr. Awan. Technical Specifications I would like to build a brake lamp project using 1 watt high power leds, consisting of 12-15 leds. the leds would light on dim parking lights … Read moreLED Brake Light Circuit for Motorcycle and Car

Simplest 100 Watt LED Bulb Circuit

The article discusses a very simple 100 watt LED bulb circuit using a few high voltage capacitors. The entire circuit could be built at a cost less than $25. I have already discussed many capacitive type of transformerless power supply circuits in this blog, however all these suffers from a couple of issues, namely lack … Read moreSimplest 100 Watt LED Bulb Circuit

How to Make Car LED Bulb Circuit Using 3020 SMD LEDs

Typically all car turn signal lamps are around 12 to 20 watt rated which are traditionally incandescent bulb types and produce much lower light intensities compared to LED lights. Here we learn how these lamps can be replaced with high efficiency, high intensity car LED bulbs. LED Car Bulb Design The image below shows what … Read moreHow to Make Car LED Bulb Circuit Using 3020 SMD LEDs

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