PHYS 30504 - PHYS 3050 Lab Report VII The Common Emitter...

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Unformatted text preview: PHYS 3050 Lab Report VII The Common Emitter Amplifier Swapnil Agrawal 210049237 10th December 2009 Swapnil Agrawal Lab 7 - 210049237 1 Table of Contents 1. INTRODCTION 2 1. Background 2 2. Aim 2 3. Apparatus 2 2. ANALYSIS, CALCULATIONS AND OBSERVATIONS 3 1. Rise and Fall Times 3 2. A NOT Gate 5 3. SOURCES OF ERROR 9 4. CONCLUSION 9 5. REFERENCES 9 Swapnil Agrawal Lab 7 - 210049237 2 INTRODUCTION 1. Background The transistor, like the diode, utilizes the property of the PN junction in a semiconductor. Unlike the diode, the transistor is a three-port device (with the three ports referred to as the Base (B), Collector (C), and Emitter (E). The main functions of transistors are as switches and amplifiers. The common emitter amplifier increases amplitude of the voltage from an input signal. Since, there is input and output, there is also some gain (which is the ratio of the power going out to the power coming in) 2. AIM The purpose of this lab is to understand the properties of the transistor as an amplifier. 3. APPARATUS a) Agilent 33120A function/Arbitrary Waveform Generator b) Agilent E3630A Triple Output DC Power Supply c) Agilent 34401A Digital Multimeter d) Breadboard, Resistors, Capacitors and 2N3904 (NPN). Swapnil Agrawal Lab 7 - 210049237 3 ANALYSIS, CALCULATIONS AND OBSERVATIONS 7.1 Biasing the Amplifier Circuit Construction The circuit of a simple DC Bias Circuit shown on the next page is constructed. All components are checked before they are used in the circuit. V cc is input from of 12 V from the DC Power Supply. Resistor Resistance () Color band R1 5.6 k Green, Blue, Red, Maroon, Maroon R2 680 Gold, Brown, Blue, Dark Blue R3 6.8 k Gold, Red, Blue, Dark Blue Swapnil Agrawal Lab 7 - 210049237 4 R4 1 k Gold, Red, Black, Brown R5 68...
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This note was uploaded on 12/11/2010 for the course PHYSICS 3050 taught by Professor Menary during the Fall '10 term at York University.

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PHYS 30504 - PHYS 3050 Lab Report VII The Common Emitter...

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