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7,070 Words
A battery charger is an electrical device employed for charging batteries. These batteries that are usually charged by battery charger are the storage batteries also known as “accumulator” the battery charger changes. The alternating current forms the power line into d.c suitable for charging. When the battery is fully changed, is up to it’s maximum, 12 volt, the charger with automatically cut-off with the help of the contact relay […]
48 Pages
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5,206 Words
Battery or bird cages are homes for domesticated birds. Birds require a house in which they can fly and have some freedom but still ensure they do not fly away. Bird cages are constructed to be large enough to accommodate the motion and daily activities of domesticated birds. This work was carried out to build a bird cage using available materials.
49 Pages
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7,391 Words
Car battery level monitor indicates the status of the battery just by glowing LED’s. This work explains you how to design battery level indicator. You can use this circuit to check car battery or inverter. So by using this circuit, we can increase the lifetime of battery. The heart of this battery level indicator circuit is LM3914 IC. This IC takes input analog voltage and drives 10 LED’s linearly according to the input analog voltage. […]
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8,187 Words
The guard is also susceptible to sleep at times. It was then that home security system based upon electronic circuits were developed which proved to be highly reliable and were appreciated by the people as they were relieved from constant monitoring of their homes. An intelligent Home security system is a monitoring device that monitors and alerts the user via SMS in case of a burglary attempt or fire accident at that place – house or […]
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7,823 Words
The implementation and use of an outdoors solar powered surveillance (Closed Circuit Television technology) in societies across the globe has become a standard and reliable way of securing out environment. Solar powered outdoors surveillance CCTV camera is a solar-powered wireless smart camera network platform that can be used in a variety of outdoor applications including surveillance of public spaces, habitat and environmental monito […]
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24,949 Words
There has been observed a decline in the quality of graduates from tertiary institutions in Nigeria. It is concerning that some graduates are unable to demonstrate mastery of their claimed fields of study, and some struggle to compose proficient letters. This issue has long been a point of contention among university lecturers and employers, who frequently lament the preparedness of graduates for the workforce. These indicators are ala […]
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9,669 Words
This project focuses on the design and construction of a pure sine wave inverter system, which produces an output that closely resembles the quality of mains power. Unlike many inverters that generate a modified sine wave, which is less efficient and inferior to the standard 240V mains supply, pure sine wave inverters deliver a true sine wave output. This ensures not only the proper functioning of high-end electronic devices but also s […]