In this article I have explained a relatively simple triac controlled automatic mains voltage stabilizer circuit, which uses logic ICs and a few triacs for controlling the mains voltage levels. Why Solid State Being solid state in design, the voltage switching transitions are very smooth with minimum wear and tear, resulting in efficient voltage stabilization. […]
Automatic
Simple Solar Garden Light Circuit – With Automatic Cut Off
A very simple automatic solar light system for illuminating your garden passages can be built using some LEDs, a rechargeable battery and a small solar panel. The system automatically switches ON the lamps at dusk and switches them OFF at dawn. Main features Although the following simple automatic solar LED garden light circuit looks simple, […]
Automatic Micro UPS Circuit
The following article discusses a simple automatic micro UPS circuit which can be used with modems for acquiring uninterrupted power from a DC source, and battery during mains power failures. The circuit also incorporates an automatic over charge cut off, and a low battery indication feature. The circuit was requested by Mr. Kapil Goel. Technical […]
Automatic Curtain Open-Close Circuit
We are happy to share an automatic curtain control circuit kindly provided by Mr. August Peterson. This design helps to open and close curtains by sensing light from the surroundings. It uses an LM393 comparator, a solar panel as a light sensor and a 24V motor. The circuit makes the curtain open in the morning […]
3 Automatic Fish Aquarium Light Optimizer Circuits
In this post I have explained a 3 beautiful fish aquarium light optimizer circuits your fishes will love. These are designed to automatically control the illumination of a group of appropriately selected LEDs with respect to the varying daylight and after darkness sets in. The first idea was requested by Mr. Amit 1) Sun light […]
2 Simple Automatic Transfer Switch (ATS) Circuits
In this article we investigate an ATS circuit for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, choke valve and the generator starter. The circuit was requested by Mr. Hari, and another dedicated reader from this blog. Requirement for 5kva LPG Generator […]