amplifier basics
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This document discusses transistor amplifier basics, including the common-base, common-emitter, and common-collector amplifier circuits, different classes of amplifiers like Class A, AB, B, and C, coupling methods such as RC coupling and direct coupling, and how amplifiers are used to increase the amplitude of electronic signals using transistors as the amplifying device.
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amplifier basics
- 2. Figure 28-1. Common-base amplifier circuit.
- 3. Figure 28-2. Common-emitter amplifier circuit.
- 4. Figure 28-3. Common-collector amplifier circuit.
- 5. Figure 28-12. Class A amplifier output.
- 6. Figure 28-13. Class AB amplifier output.
- 7. Figure 28-14. Class B amplifier output.
- 8. Figure 28-15. Class C amplifier output.
- 9. Figure 28-17. RC coupling.
- 10. Figure 28-20. Direct coupling.
- 11. Amplifiers are electronic circuits used to increase the amplitude of an electronic signal The transistor is used primarily as an amplifying device Three transistor amplifier configurations • Common base, common collector, and common emitter
- 12. Coupling methods used to connect one transistor to another • Resistance-capacitance coupling, impedance coupling, transformer coupling, and direct coupling Direct-coupled amplifiers are used for high gain at low frequencies or amplification of a DC signal