THE STUDY OF CA3140 IC OP AMP FOR APPLICATIONS AS A COMPARATOR

Asfaw, Berihun

dc.contributor.author	Asfaw, Berihun
dc.date.accessioned	2017-08-14T08:24:27Z
dc.date.available	2017-08-14T08:24:27Z
dc.date.issued	2017-08-14
dc.identifier.uri	http://hdl.handle.net/123456789/7684
dc.description	A PROJECT WORK SUBMITTED TO THE SCHOOL OF GRADUATE STUDIES OF BAHIR DAR UNIVERSITY IN PARTIAL FULFILLMENT OF THE - REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN PHYSICS	en_US
dc.description.abstract	This project work highlights the design and simulation of a variable power supply regulator by using CA3140 IC OP AMP. A variable power supply is a device that supplies electric power to an electrical load. As the name implies, it will allow the user to vary or change the output voltage within the speci fied ranges. It is the most frequently used device in electronics workshops and laboratories as a universal variable power supply which has a fluctuation-free output. In this work, we ;present a variable power supply regulator which is simple and easy to construct. The circuit is built from ~he CA3140 IC comparator op amp and a three terminal variable voltage regulator IC LM7805. The main AC supply voltage of 220V - 240V is stepped 'down by a center tap (CT) transformer to deliver a secondary AC output voltage of 24V peak-to-peak amplitude. The output of the transformer • ... is rectified by two diodes. Capacitors are also used as filters to eliminate the ripples. We'have designed a variable power supply regulator with output voltage ranging from 5V to 11V	en_US
dc.subject	PHYSICS	en_US
dc.title	THE STUDY OF CA3140 IC OP AMP FOR APPLICATIONS AS A COMPARATOR	en_US
dc.type	Thesis	en_US