The aim of this research is to design and construct a solar powered mobile phone charger. More especially the objectives are:rn1) To design an electric circuit for the purpose of charging through the solar powerrn2) To carry out a design calculation so as to ascertain the duration for which the rechargeable battery will charge the mobile ph... Continue Reading
This is the design and construction of an Automatic Phase Selector. In the construction work, LM324 integrated circuit (comparator) and 2N2222 transistors were used as active components alongside other passive components. The circuit components were mounted on a Vero board. Result shows that, when the three phase A.C inputs: Red phase (P1), yellow ... Continue Reading
In the world today, we are being challenged with the lag of energy that used to generate the electrical power, as the solution the exploration and development of alternative power become a global issue. Some of the alternative power such as solar energy produces the direct current (DC) from the solar panel. Most of the electrical appliances today u... Continue Reading
This project is about the Design and Construction of a Vehicle Tracking and Accident Alert System (VTAA) using GPS and GSM Technology. It comprises of integration between GPS receiver, microcontroller and GSM module, and of course the push button for accident alert activation. The combination of all this technology will produce our VTAA system. Continue Reading
This project report is a thesis written specifically to cover the design analysis construction, test and packaging of a multipurpose security system from electric component that can be easily be obtainable from the market. Continue Reading
The application of face recognition through public surveillance cameras in criminal investigations is non-intrusive, inconspicuous and faster compared with fingerprint or DNA-sampling biometric evaluation methods. It assists the law enforcement agency during the preliminary investigation to narrow down the candidate list of suspects or person-of-in... Continue Reading
The design and construction of an Automatic Alarm System to monitor the water level is an electronic device which attempt to monitor the flood level/water level and to alert the user to put it off. Being an electronic device, it is Automatic and highly sensitive to water. Continue Reading
Wireless charging of gadgets is one of the new emerging technologies in the world at the moment. The most common method used at the moment is wireless power transfer by inductive coupling. . Wireless power transfer is one of the simplest and inexpensive ways of charging as it eliminate the use of conventional copper cables and current carrying w... Continue Reading
High power amplifier are usually quite costly and usually beyond the easy reach of most audio enthusiastic (and Hi-Fi buffs) who then have to remain satisfied with those small 6 watt amplifiers. Well, with this introduction to us and to electronics, things should change. Well this low cost Hi-Fi amplifier that delivers ear chatting and thundering ... Continue Reading
Wireless power transfer (WPT) is an important topic nowadays. Although WPT has been known for more than a century, only now has the WPT industry started its rapid growth. The number of publications on wireless power has increased by at least 1200% in the last 10 years [9,2]. Current solutions are having great success in the marketplace with diffusi... Continue Reading
The vehicle system control using telemetry application is all about using a radio wave to control and activate certain events such as the car horn, car head light, car ignition (starter) and car air conditioner etc. Continue Reading
This uninterruptible power supplies device has the capability of converting from 12volts D.C to 220volts alternating current at the frequency of 50Hz with the help of a step-up transformer. The main importance of this device is its ability to ensure absolute continuity of power to the computerized control system thereby protecting a critical equipm... Continue Reading
The background to this project work is traced to the in tense demand of the populace and industries, residential homes, and many more demand for change of power supply switch for effective and continuity of power supply without a notice interruption or delay in such process to any alternative supply if the main supply goes off. Continue Reading
The automatic change over switch makes use of protective relays and contractors among other things which constantly monitor the power system to ensure maximum continuity of the electrical service with minimum damage to life and property. Continue Reading
Change over switch is a device used to switch off a power supply and subsequently switch on another power source. Basically it is aimed at switching on a more convenient power supply to the load. Since it switches on power to the load precaution has to be taken while choosing the type of change over switch. Also size, arcing control are put into co... Continue Reading