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I wish to thank to Mr. Ajith Ratnayaka (Manager – Training & Technical Development, Fentons Ltd.) whose guidance and encouragement as the project supervisor, during the process of this project have been a constant source of inspiration. Also, I must thank Mr. Anbarasu Jayakanthan (Regional Product Manager – Mitel Electronic components), Mr. Beng Cheng, Koh (Product Marketing Manager - Dallas Elelctronic) and Maxim Integrated products inc, for their generosity in providing data sheets and IC samples free of charge for the project.  


I also appreciate “Engineering Express” ( who helped me by providing the PCB design software “ExpressPCB” and further allowed me to test the printed circuit board layout via the internet.








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Last modified: July 13, 2002