The explained circuit of a water level controller circuit is based on a adjustable timer circuit whose time delay is first adjusted to match the filling time of the tank, […]
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5 Easy 1 Watt LED Driver Circuits
In this post we are going to learn about a few easy to build, compact 1 watt LED bulb circuits. The first circuit is SMPS based, the second design uses […]
6 Useful DC Cell phone Charger Circuits Explained
A DC cell phone or mobile phone charger is a device which charges a cellphone from an available DC supply source. The device converts the unregulated DC source into a […]
How to Get Free Energy from Alternator and Battery
A request was sent to me by one of the readers Mr. Edward Pizzo, regarding solving a circuit issue. The idea refers to a very interesting concept of acquiring free energy through a […]
4 Simple Uninterruptible Power Supply (UPS) Circuits Explored
Under this post we investigate 4 simple 220V Mains Uninterruptible power supply (UPS) designs using 12V battery, which can be understood and constructed by any new enthusiast. These circuits can […]
12V Battery Charger Circuits [using LM317, LM338, L200, Transistors]
In this article we will be discussing a list of simple 12V battery charger circuits which are very easy and cheap by its design yet extremely accurate with its output […]