DESIGN AND CONSTRUCTION 250V DC/AC INVERTER  

2009-11-21
This project gives details of the design and construction of a modern 250W dc to ac inverter. The system consists of the main inverter stage and the step up transformer. ...

DESIGN AND CONSTRUCTION OF OVER AND UNDER VOLTAGE PROTECTOR FOR ELECTRICAL APPLIANCES  

2009-11-21
This paper contains details of the design and construction of an under voltage protector for a single load. The system basically protects the load against surge which may affect it. ...

DESIGN AND CONSTRUCTION OF VARIABLE DC SUPPLY  

2009-11-21
This project report present the design and construction of variable DC supply. The variable DC supply can be used to count from zero (20) in digital numbers or binary. It ...

DESIGN AND CONSTRUCTION OF VOLTAGE TRIMMER OF 8V, 6V, 4V AND 2V RESPECTIVELY  

2009-11-21
This project shows the design and construction of voltage trimmer of 8v, 6v, and 2v.

DESIGN AND CONSTRUCTION OF MOBILE BUG  

2009-11-21
There are many situations in which cell phone / mobile phone usage presents certain challenges. The use of cell phone is therefore restricted in certain areas for reasons of privacy, ...

DESIGN AND CONSTRUCTION OF SECURITY DOOR INDICATOR/ALARM CIRCUIT  

2009-11-21
This project is designed and constructed in such a way that, when someone touches the door Handle from outside, the circuit emits and/or illuminates LED (Light Emitting Diode). The alarm ...

DESIGN AND CONTRUCTION OF SOLID STATE INFRA RED REMOTE CONTROLLED RECEIVER SWITCH  

2009-11-21
This project was done in order to design and construct an ON and OFF switch mechanism using infra red signal.

DESIGN AND CONSTRUCTION OF MELODY MUSIC GENERATION USING CMOS M3481 INTEGRATED CIRCUIT  

2009-11-21
This is project the design and construction of melody music generation using CMOS M3481 IC with a power source. It has the ability to sense the presence of light intensity, ...

THE CONSTRUCTION AND DESIGN OF AN IC 555 TIMER TESTER  

2009-11-21
This project is carried out so as to be able to identify good or bad IC 555 timer. The achievement made on this project is that the IC 555 timer ...

DESIGN AND CONSTRUCTION OF SURGE SAFETY GUARD  

2009-11-21
These projects consist of comprehensive explanation on how to design and construct a surge safety guard. The purpose of this surge safety guard is to help to protect our home ...