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Unformatted text preview: Lecture 27 Page 4 The CommonBase Amplifier (Continued) Solve first for the input resistance, R i by first finding the intermediate resistance R ie : R i R ie Now combine R ie and R E in parallel to find R i : EE 310 Lecture 27 Lecture 27 Page 5 The CommonBase Amplifier (Continued) Now solve for the voltage gain. First express v o as a function of v π : R i Next express V π as a function of v i : Finally, divide to get v o / v i : EE 310 Lecture 27 Lecture 27 Page 6 Summary A single transistor is seldom enough to build an amplifier with reasonable characteristics: EE 310 Lecture 27 Lecture 27 Page 7...
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This note was uploaded on 10/12/2010 for the course E E 310 at Pennsylvania State University, University Park.
 '10
 WHARTON,MARKJEDWARDS,PERRYSTO
 Amplifier

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