1. Chapter 1 Transistor As A Small Signal Amplifier SEE 2253ELECTRONIC CIRCUITS

3. CO2: Apply the basic laws, theorem and methods of analysis for solving various problems in electronic circuit

4. CO3: Analyze the procedure that should be taken in solving electric circuit using theorems and methods of analysis: Perform AC analysis on amplifiers at low, middle and high frequencies

5. CO4: Categorize and analyze negative feedback topologiesNorlaili Mat Safri, Ph.D

7. Basic Amplifier Circuit, Amplifier Parameters (Avoc, Av, Ai, Zi & Zo), Decibel (dB)

8. BJT as an amplifier

9. Mid freq. ac analysis using hybrid- model – CE, CC, CB

10. Frequency response: Analysis at low & high freq.

11. Short circuit current gain, Bode plot, Simulation using MultiSimNorlaili Mat Safri, Ph.D

13. Amplifier can amplify current, voltage, and/or power.Norlaili Mat Safri, Ph.D

14. Intro to Amplifier Circuit Concept of small-signal amplifiers DC Supply Voltage Amplifier Input signal Output signal Vi Vo Norlaili Mat Safri, Ph.D

15. Intro to Amplifier Circuit Figure 1.1 : Examples of Amplifier Circuitry System Norlaili Mat Safri, Ph.D

16. Basic Amplifier Model Norlaili Mat Safri, Ph.D Figure 1.2 : Amplifier Model

18. Current gain :

19. Power gain :Norlaili Mat Safri, Ph.D

21. AVOC? Zi? Zo?Norlaili Mat Safri, Ph.D

22. Decibel (dB) Gain (A), in dB Av (dB) = 20 log Av If normalized, Av (dB) = 20 log (Av/Avmax) How about current gain (Ai) and power gain (Ap)? Norlaili Mat Safri, Ph.D

23. Basic Amplifier Circuit Voltage amplifier Current amplifier Figure 1.3 : Amplifier Model Norlaili Mat Safri, Ph.D

24. Basic Amplifier Circuit Transconductance amplifier Transresistance amplifier Figure 1.3 : Amplifier Model…cont. Norlaili Mat Safri, Ph.D

25. Basic Amplifier Circuit Q. What is an amplifier? Q. What is an ideal amplifier? 1 2 Norlaili Mat Safri, Ph.D

26. Basic Amplifier Model Your Answers to Attributes of an Ideal Amplifier, Norlaili Mat Safri, Ph.D

27. Basic Amplifier Circuit Unloaded voltage gain Keyword: Unloaded? Figure 1.4 : Basic amplifier model (unloaded) Norlaili Mat Safri, Ph.D

28. Basic Amplifier Circuit With loading effects Keyword: Loaded? Figure 1.5 : Basic amplifier model (loaded) Norlaili Mat Safri, Ph.D