EC6304 Electronic Circuits- I Scanned Lecture Notes with Solved Problems - All Units

[Srini]

   

Anna University , Chennai

Department of B.E. Electronics and Communication Engineering

Third Semester

EC6304 Electronic Circuits- I 

(Regulation 2013) 

Content :
UNIT-1
BIASING OF DISCRETE BJT AND MOSFET

• Load line analysis
  
• Quiescent point 
  
• Need for biasing
  
• Selection OF Operating Point
  
• VARIATION OF Q-POINT (or) FACTORS AFFECTING STABILITY
  
• OF Q-POINT
  
• Temperature
  
• Stability factors
  
• Different types of biasing circuit\various biasing methods for BJT
  
• Advantage
  
• Disadvantage
  
• Collector to base bias\biasing with feedback resistors
  
• Load line analysis
  
• Stability factors
  
• Drawback
  
• CE AMPLIFIER WITH VOLTAGE DIVIDER BIAS
  
• AC load line
  
• Maximum symmetrical swing
  
• Common collector amplifier (emitter follower)
  
•  Small signal analysis of cc amplifier
  
• 1. Current gain (AI)
  
• 2. Input resistance
  
• 3. Voltage gain (AV)
  
• 4. Output resistance
  
• COMMON BASE AMPLIFIER
  
• Small signal analysis of CB amplifier
  
• 1. Current gain (AI)
  
• 2. Input resistance
  
• 3. Voltage gain (AV)
  
• 4. Output resistance
  
• Comparison of CE, CC and CB amplifier and their uses
  
• Voltage divider bias
  
• DC ANALYSIS
  
• Design of biasing MOSFET
  
• 1. D-MOSFET
  
• 2. E-MOSFET
  
• Comparison of BJT and FET
  
• Problems
  
• Method of stabilizing the Q-point
  
• Design of biasing for JFET
  

UNIT-2
BJT AMPLIFIERS

• Method of drawing small-signal equivalent circuit
  
• H-parameter
  
• Midband analysis of BJT single stage amplifier
  
• Common emitter amplifier
  
• Analysis of CE circuit using simplified hybrid model
  
• MILLWR THEOREM
  
• Proof of millers theorem
  
• DIFFERENTIAL AMPLIFIER
  
• Features of differential amplifier
  
• Emitter coupled differential amplifier
  
• 1. Differential mode operation
  
• 2. Common mode operation
  
• BISECTION THEOREN [or] BARTLETT’S BISECTION
  
• METHOD OF IMPROVING CMRR
  
• Advantages
  
• Transfer characteristics of differential amplifier
  
• DARLING METHOD
  
• BOOSTRAP EMITTER FOLLOWER
  
• MULTI STAGE AMPLIFIER
  
• Cascaded amplifier
  
• Method of coupling multistage amplifier
  
• Rc coupling
  
• Transformer coupling
  
• Direct coupling
  

UNIT-3
JFET AND MOSFET AMPLIFIER

• JFET amplifier
  
• Common source circuit with voltage divider bias
  
• Small signal analysis of JFET common gate amplifier
  
• Common drain\source follower
  
• MOSFET AMPLIFIER
  
• small signal equivalent circuit
  
• Basic transistor amplifier configuration
  
• Common gate configuration
  
• Bic MOS cascade amplifier
  
• Problems
  

UNIT-4
FREQUENCY ANALYSIS OF BJT AND MOSFET AMPLIFIER

• General shape of frequency response of amplifier
  
• Low frequency analysis of amplifier to obtain lower cut-off frequency
  
• Hybrid-equivalent circuit of BJT
  
• CE short circuit current gain using hybrid-pie model
  
• GATE CAPACITANCE
  
• 1. Gate capacitance
  
• 2. Junction capacitance
  
• 3. High frequency MOSFET model
  
• 4. Unity- gain frequency
  
• 5. Frequency response of CS amplifier
  
• Bandwidth of multistage amplifier
  
• 1. overall lower cut-off frequency of multistage amplifier
  
• 2. Overall higher cut-off frequency of multistage amplifier
  
• Rise time and its relation to upper cut-off frequency
  
• Problems
  

UNIT-5

• Problems
  

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