Greener Journal of Science, Engineering and Technological Research Vol. 5 (1), pp. 001-010, May 2015.

ISSN: 2276-7835

Research Paper

Manuscript Number: 081914331

(DOI: http://doi.org/10.15580/GJSETR.2015.1.081914331)

 

Design and Construction of an Automatic Emergency lighting System with Battery Over-Charge Protection Circuit

 

Engr. Isah Abdulazeez Watson,  Engr. Alexander Omoregie and Engr. Oshomah A.B

 

Department of Electrical/Electronic Engineering, Auchi Polytechnic, Auchi, Edo state.

 

Corresponding Author’s Email:  isahtek @yahoo. com

 

Abstract

This paper discusses the design and construction of an energy efficient automatic emergency fluorescent Lantern with Battery Monitoring and Protection Circuit. It was implemented by designing and constructing each constituent parts of the entire system. The steps entail the design and construction of the ferrite core transformer, the design and construction of the blocking oscillator circuit, the construction of the fluorescent lamp circuit, the design and construction of the step-down voltage transformer for the charging circuit and finally the design and construction of the 12volts battery charger after bread boarding. It automatically switches on to the battery without a single blink in illumination when there is power failure. It remains significantly stable while in operation with no humming from the transformer.

 

Keywords: blocking oscillator, ferrite core transformer, Charging circuit, step-down voltage, humming.

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References

Adegbemile AA (2008). Design of a Blocking Oscillator for Low Voltage Fluorescent Lighting. International Journal of Electrical and Power Engineering. 2(2):71-76.

 

FairChild Semiconductor (2010). DF005S data sheet. Available at https://www.fairchildsemi.com/datasheets/DF/DF04S.pdf

 

Glen MG (1986). Analogue Electronics Circuits. Prentice Hall Inc. New York, 134-136.

 

Linda MH ( 2002). Real-World Design as a One-Semester Undergraduate Project: Example of A Robust and Low-Cost Solar Lantern. IEEE Transaction on Education. 45(4):357-363.

 

Muhammad HR (2004). Power Electronics Circuits, Devices and Applications. Pearson Education, Inc. Florida, 654-659.

 

Rajiv (2011). Current Density of Copper. Available at http://www.finishing.com/91/82.shtml/.

 

Sen PC (2004). Modern Power Electronics. S. Chand &Company ltd. New Delhi, 186-189. 

 

Theraja BL and Theraja AK ( 2006). Electrical Technology. Nirja Construction and Development Company. New Delhi, 657-659.

 

Johannes M and Van M (1985). DC/AC Converter for Feeding a Metal Discharge Tube.  U.S Patent 754,412.

 

Wikipedia (2011). Fluorescent lamp ballasts. Avalable at http://en.wikipedia.org/wiki/Electrical_ballast.