Lab3 - Lab 3. Transistor and Logic Gates Laboratory...

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Transistor and Logic Gates Laboratory Instruction Today you will learn how to use a transistor to amplify a small AC signal as well as using it as a switch to construct digital logic circuits. Introduction The TA will show you the emitter, base and collector for the transistor. The TA will show you how to mount Integrated Circuits (IC) on a breadboard. Waveform Identification 3.1 Turn on the oscilloscope and connect the output of the function generator to channel 1. Determine what is the waveform you are looking at. Measure the amplitude, frequency, and DC offset. Note this information on the answer sheet. Show all your calculations on the answer sheet for frequency, amplitude, and DC offset. Draw a picture of the signal that you see on the scope. Signal Amplification using Bipolar Junction Transistor (BJT) 3.2 Transistors are commonly used for amplifying weak AC signals. We have studied in lecture that transistors may operate in three different modes, cutoff, linear, and saturation. For amplification purposes a transistor is biased for linear operation. For switching purposes a transistor is biased either in cutoff or saturation. 1
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This note was uploaded on 04/29/2008 for the course ENGR 1310 taught by Professor Mielke during the Spring '07 term at Rensselaer Polytechnic Institute.

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Lab3 - Lab 3. Transistor and Logic Gates Laboratory...

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