Lesson 1 - Introduction to Amplifiers
Amplifying circuits; Amplifier characteristics; Transistor amplifiers; Characteristic curves; Effects of temperature
Learning Objectives:– Explain how gain, bandwidth, and distortion relate to amplifier operation.
– Compare bipolar transistor amplifiers and FET amplifiers.
– Explain how to use characteristic curves to predict transistor performance.
– Explain how to use an input/output curve to determine transistor gain.
– Discuss the effect of ambient temperature on amplifier performance.
– Discuss the uses of operational amplifiers and switching amplifiers.
Lesson 2 - Single-Stage Amplifiers
Biasing circuits; Operating points and load lines; Biasing common-emitter, -collector, and -base circuits; Biasing FET amplifiers; Amplifier classifications; Push-pull amplifiers
Learning Objectives:– Discuss the transistor characteristics that define operating region limits.
– Explain how to draw an amplifier load line.
– Explain how to find the operating point of an amplifier.
– Discuss biasing as a means of establishing a stable operating point in an amplifier circuit.
– Discuss five ways that amplifiers can be classified and compare Class A, AB, B, and C amplifiers.
Lesson 3 - Amplifier Performance and Multistage Amplifiers
Power, current, and voltage gain; Distortion; Impedance matching; Multistage amplifiers; Amplifier, capacitive, and transformer coupling; Direct-coupled amplifiers
Learning Objectives:– Explain how to calculate amplifier power gain, efficiency, current gain, and voltage gain.
– Explain how nonlinearity and clipping cause amplifier distortion.
– Discuss the importance of impedance matching in interconnecting circuits.
– Explain how to calculate multistage amplifier gain and bandwidth.
– Compare the advantages and disadvantages of capacitive-coupled, transformer-coupled, and direct-coupled amplifiers.
Lesson 4 - Op Amps
Differential amplifiers; Typical op amp; Inverting, summing, and noninverting amplifiers; Nonlinear op amp circuits; Integrators; Comparators; Squaring circuits
Learning Objectives:– Describe the operation of differential amplifiers.
– Compare the properties of an ideal op amp and a typical actual op amp.
– Describe the operation of inverting amplifiers in terms of virtual ground.
– Compare the advantages of inverting amplifiers and noninverting amplifiers.
– Explain how integrators and comparators work.
– Explain how zener diodes are used in squaring circuits.
Lesson 5 - Troubleshooting Amplifiers
Troubleshooting single- and three-stage amplifiers; Troubleshooting by DC and AC analysis; Measuring gain and power supply performance; Troubleshooting components, op amps
Learning Objectives:– Describe basic procedures for troubleshooting single-stage and multistage amplifiers.
– Explain how dc analysis, ac analysis, and troubleshooting trees are used in amplifier maintenance.
– Explain how to measure amplifier gain and power supply performance.
– Describe the procedures for troubleshooting resistors, capacitors, and op amps.