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Exam 2 information

Prepare for your exam with this comprehensive guide covering BJT basics, amplifier configurations, AC/DC analysis, biasing options, and more. Practice solving circuit problems and interpreting data sheets.

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Exam 2 information

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  1. Exam 2 information Open book, open notes, bring a calculator Eligible topics (1 of 3) (not an exhaustive list) Everything covered up to but and including BJTs but not including FETs Bipolar Junction Transistors, BJTs • BJT basicsterminals (Base, Emitter, Collector)versions (NPN, PNP)junctions (EBJ, CBJ) • Modes of operation and junction bias conditionscutoff, active, saturation, reverse activecharacteristics of each mode • DC analysis BJT circuitsVB, VC, VE, IB, IC, IEVerifying assumed modePower dissipation • BJT characteristicsEarly effect, Early voltageBreakdown voltage

  2. Exam 2 information Open book, open notes, bring a calculator Eligible topics (2 of 3) (not an exhaustive list) BJT Amplifiers • BJT as amplifierActive-mode operationsmall-signal condition for linear operation • Small-signal modelstransconductance (gm), current gain ()hybrid-pi model: input resistance (rp), output resistance (ro)T model: input resistance (re), output resistance (ro) • AC analysisvoltage gain, current gain, input resistance, output resistancemax signal level without saturation or cutoff • Biasing optionsminimizing IB sensitivity to parameter variations (e.g., VCC, , temperature)

  3. Exam 2 information Open book, open notes, bring a calculator Eligible topics (3 of 3) (not an exhaustive list) BJT Amplifiers • BJT amplifier configurationscommon emitter, common base, common collector (or emitter follower)characteristics of each configuration • Higher-order model componentsrm, Cm, Cp • High-frequency performance characteristics and analysisbreak frequency, fBunity-gain frequency, fT • Data sheet interpretation

  4. Exam 2 information Open book, open notes, bring a calculator Specific topics (not an exhaustive list) • Given a BJT amplifier circuit drawingidentify the amplifier configurationsolve for DC voltage or current, power dissipationdraw the small-signal equivalent circuitfind gm, rp • Given the BJT amplifier’s small-signal equivalent circuitderive an expression for Avderive an expression for Routsketch the amplifier circuitfind the break frequency for a circuit containing a capacitor 3 problem sets, total of 8 questions

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