The design of this 30 volt Audio Amplifier with volume, table and bass control which was done wit ht he combination of five (5) different circuit which are interconnected during or after construction. This amplifier operates with an option of a left and right channel. The combination of these circuit include this main amplifier circuit (which co... Continue Reading
The basic aim of the design and construction of this three phase automatic phase selector is to demonstrate how contactors can be used to switch in between three lines or phases e.g “RED, YELLOW AND THE BLUE PHASE” without interfering with the contacts. Continue Reading
This thesis proposes an intelligent battery management system (BMS) that is operated by the microcontroller. The system includes a solar cell array, DC-DC converter with maximum power point tracking (MPPT), a bi-directional inverter connected to the grid, and a graphical user interface (GUI) to monitor operation. 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
An audio AMP is basically a system which is used as a means of increasing the level of sound or audio signals for maximum use. A public address system consists basically of microphone, Amplifier and speaker(s) to facilitate the communication to intelligible speech to groups of people or an audience. The main purpose of providing sound reinforcem... Continue Reading
The advancement of technology for the past decade has definitely triggered the need for developing more advanced devices. The traditional door lock system which comprises of a physical key and lock is slowly fading away. Although it is still considered efficient, a major key issue does occur which is the hassle of carrying a set of keys aro... Continue Reading
This work has been aimed at efficient means of controlling the traffic effectively for twenty-four hours. As the world is growing technologically more and more vehicles jump into the public road adding to the already existing number. Consequently, more efficient way of controlling the traffics becomes more desirable as compared to the obsolete way ... 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
Text entry system can be found commonly in modern computer and mobile devices such as smartphone and tablet. Despite this, these text entry systems are not easily accessible by handicaps. The major problem with the normal text entry system such as the “QWERTY” keyboard, it would be very difficult for the handicaps to input the keys. To ... Continue Reading
This project is design and construction of a sound detector with alarm system was done primarily to detector sound. It can be use in industrial and domestics. It employ four discreet stages with power supply which power the system. The 1st block is pick up amplifier containing the microphone and the input which serve as a transformer which the f... Continue Reading
A battery charger is an electrical device employed for charging batteries. This batteries that are usually charged by battery changer are the storage battery charger are the storage batteries also known as “accumulator” the battery changer changes. The alternating current form the power line into d.c suitable for charging. Continue Reading
This project is he design and construction of a voltage inverter system with trickle charging system. This device is design to provide power supply for the need of offices, household etc. In absence of NEPA power supply. It would also prevent harm to our appliances caused by power holding company LTD (NEPA) Random power outage . Continue Reading
The topic of this project is “ Audio Amplifier”. The research embarked upon this study or project by using both primary and secondary source of data. 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
An audio AMP is basically a system which is used as a means of increasing the level of sound or audio signals for maximum use. A public address system consists basically of microphone, Amplifier and speaker(s) to facilitate the communication to intelligible speech to groups of people or an audience. The main purpose of providing sound reinforcem... Continue Reading