In this post we will discuss how to build a very simple, low cost LED lamp with charger. This unit can be used by any street seller, vendor, hawker, to […]
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Temperature Controlled Relay Switch Circuit
In this article we discuss a simple temperature controlled relay circuit which can be switched ON/OFF depending on the temperature on its temperature sensor. Meaning, when the temperature on its […]
Automotive LED Driver Circuits – Design Analysis
In cars or automobiles, LEDs have grown to be the preferred choice of lighting. Whether it’s the rear tail-lights or the tell-tale indicators in the cluster as indicated in Figure […]
Touch Dimmable LED Light Bar Circuit
This LED light bar with dimmable feature will allow the user to adjust the brightness of the lamp in 4 steps, with100%, 50%, 10% and 0% illumination control at each […]
200, 600 LED String Circuit on Mains 220V
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 […]
Timer Controlled Fitness Gym Application Circuit
In this post we learn how to make a timer circuit for fitness, or gym workout application. The idea was requested by Mr. Jan. Circuit Objectives and Requirements I need […]