In this post we discuss the construction of a simple emergency charger pack using Nicket Cadmium (Ni-Cd) batteries for your cellphones and smart phones for emergency charging of your cellphone, […]
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How to Switch Two Batteries Manually using Opto Coupler
The following article explaining a dual battery changeover relay circuit was requested by Mr.Raja so that it could become possible to switch between his old and new inverter batteries automatically, eliminating manual interventions. Let’s […]
Making a Multi-function Water Level Controller Circuit
The following multi-function water level controller circuit post is based on the suggestions expressed by Mr. Usman. Let’s learn more about the requested modifications and the circuit details. The Circuit […]
Simplest AM Radio Circuit
The following circuit was taken from an old electronic book, it is indeed a very nice little two transistor radio receiver circuit which utilizes very few components yet is able […]
Make this Musical Greeting Card Circuit
The presented circuit of a musical greeting card circuit was requested by one of the keen readers of this blog, so I designed this interesting little circuit, which is simple and easily […]
Designing a Grid-Tie Inverter Circuit
A grid tie inverter works quite like a conventional inverter, however the power output from such inverter is fed and tied with the AC mains from the utility grid supply. […]