DI02011011 · Semester 2 · 5G scheme
Electronics Circuit and Application (ECA)
Notes and solutions following the Gujarat Technological University (GTU) syllabus for DI02011011. Independent material — not issued by the university.
Materials
Complete Book
The whole syllabus, unit by unit, written for the exam.
Complete Book
165 pages
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Problem Solver
Step-by-step solutions to typical problems.
Problem Solver
43 pages
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PYQ Solutions
Past university papers, fully solved.
Solved past papers — detailed answers
68 pages · English + ગુજરાતી
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Syllabus units
Unit 1: Field Effect Transistors(FETs)
- Junction field effect transistor(JFET) structure, symbol, working, characteristics, parameters
- Metal oxide semiconductor field effect transistor(MOSFET)
- Depletion type MOSFET. structure, symbol, working, characteristics
- Enhancement type MOSFET. structure, symbol, working, characteristics
- Comparison of BJT, JFET, MOSFET
- List application of FETs
Unit 2: Transistor Biasing circuits And Thermal stability
- Biasing of Amplifier and Definition of Operating Point
- The Load Lines: D.C. Load Line and A.C. Load Line
- Biasing Methods
- Stability Factor: Definition and features
- Compensation techniques for bias stability
- Thermal Runaway, Thermal Resistance & Thermal Stability
- Heat Sink and its types
Unit 3: Frequency Response of Transistor Amplifier
- Amplifier Parameters Gain, Bandwidth and Gain Bandwidth product
- Effect of Emitter Bypass Capacitor and Coupling Capacitor on frequency response
- Frequency Response of Single Stage Amplifier
- Gain of multi-stage amplifier
- Different Coupling Techniques for cascading: Direct, RC, LC and Transformer
- Frequency Response of Two Stage RC Coupled amplifier
Unit 4: Feedback in amplifiers
- Concept of feedback in amplifiers: Negative and Positive
- Types of feedback
- Voltage gain of feedback amplifier
- Describe the effect of negative feedback on amplifier parameters like Gain, input impedance, output impedance, stability, bandwidth, frequency response, distortion, and noise
- List the advantages and disadvantages of negative feedback
- Emitter follower circuit
Unit 5: Oscillators
- Use of positive feedback in oscillators
- Barkhausen's criteria for oscillation
- Overall gain of positive feedback amplifier
- Tank circuit
- Different types of oscillators
- LC oscillators: (1) Hartley oscillator, (2) Colpitts oscillator
- RC oscillators: (1) Phase shift oscillator, (2) Wein bridge oscillator
- Crystal Oscillator Piezoelectric effect, characteristics of crystal, crystal oscillator circuits
- Uni junction transistor(UJT) Structure, symbol, working, characteristics
- Use of UJT as relaxation oscillator
About this course
Electrical, Electronic, Instrumentation and allied engineering diploma holders are required to use and maintain various types of electronically controlled equipment. The fundamental principles of electronics are to be applied in most of the situations to arrive at the probable solutions which is faced in the world of work, therefore the knowledge of the functions of various basic electronic devices and components and practical skills acquired through the laboratory experiments will help them, when they work with electronic equipment and its sub-circuits. This course is designed to develop the skills to use the basics electronic components and apply the knowledge to maintain the various types of electronic circuits.