lesson 9 2010 Common emitter amplifier with activities

lesson 9 2010 Common emitter amplifier with activities -...

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Unformatted text preview: Common-Emitter Amplifier Common-Emitter Amplifier Objective: after learning this section, you will be able to: Draw a common-emitter (CE) amplifier; Derive the dc equivalent of a CE amplifier and compute the dc currents and voltages; Derive the ac equivalent of a CE amplifier; Retrieve the input resistance, output resistance, and voltage gain of a CE amplifier; Compute the load voltage for a CE amplifier; Analyze a swamped CE amplifier. Presentation Emitter at ac ground Input applied to base Output obtained at collector Coupling and bypass capacitors C2 Rs Vs C1 R2 R1 RE VC C RC RL C3 DC Equivalent Circuit KVL around base loop I E Ohms law across R E V E Transistor property I C Ohms law across R C V C V B ? R2 R1 RE RC VC C AC Equivalent Circuit Rs Vs RC R1 R2 RL Amplifier Model Input resistance R in Voltage gain A v Output resistance R out Ro u t Rs Vs V in R in RL Av .V in Vo u t AC Equivalent and Model...
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lesson 9 2010 Common emitter amplifier with activities -...

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