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Unformatted text preview: Joshua Dean Experiment 7 Designing and Measuring a Common-Collector Amplifier April 6, 2011 The George Washington University School of Engineering and Applied Science ECE 2115 Engineering Electronics GTA: Bowei Zhang Lab Partners: Berk Bozoklar, Stephen Joo 1 Introduction : Throughout this laboratory experiment, a common collector amplifier circuit was designed based off of a given set of specifications. The purpose of designing the circuit was to observe the characteristics. 2 Materials : Kit Part # Spice Part Name Part Description Symbol Name (used in schematics throughout this lab manual) 2N3904 Q2N3904 NPN Bipolar Junction Transistor (BJT) Q1 Resistor R To be determined in prelab R1 Resistor R To be determined in prelab R2 Resistor R To be determined in prelab RC Resistor R To be determined in prelab RE Table - materials 3 Background information : Equation 1 – Voltage Gain Equation Beta = I c /I e Equation 2: Beta Equation I e = I c + I b Equation 3: Transistor voltage equation R in (AC) = V in / I in Equation 4: Input Resistance Equation R out (AC) = V out / I out Equation 4: Output Resistance Equation 4 Experimental Procedures : 1.1 Bias Point Verification The basic components of the circuits were measured. The basic components of the circuits were measured....
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- Fall '11
- Amplifier, Resistor, Bipolar junction transistor, Electronic amplifier, Vout, Transistor voltage equation, common collector circuit