Transistor Biasing Talking Electronics（晶体管偏压说电子产品）.pdf

Principles of Electronics 192 9 Transistor Biasing 9.1 Faithful Amplification 9.2 Transistor Biasing 9.3 Inherent Variations of Transistor Parameters 9.4 Stabilisation 9.5 Essentials of a Transistor Biasing Circuit 9.6 Stability Factor 9.7 Methods of Transistor Biasing 9.8 Base Resistor Method 9.9 Emitter Bias Circuit 9.10 Circuit Analysis of Emitter Bias 9.11 Biasing with Collector Feedback Resistor INTR INTRODUCTIONODUCTION INTRODUCTION INTR INTRODUCTIONODUCTION 9.12 Voltage Divider Bias Method he basic function of transistor is to do amplifica- 9.13 Stability Factor for Potential tion. The weak signal is given to the base of the Divider Bias Ttransistor and amplified output is obtained in the 9.14 Design of Transistor Biasing collector circuit. One important requirement during Circuits amplification is that only the magnitude of the signal 9.15 Mid-Point Biasing should increase and there should be no change in signal shape. This increase in magnitude of the signal without ββ 9.16 Which Value of β to be used? ββ any change in shape is known as faithful amplification . 9.17 Miscellaneous Bias Circuits In order to achieve this, means are provided to ensu