On this page, we will review the Analog Electronics Short Notes PDF Part 8. Welcome to Poly Notes Hub, a leading destination for analog electronics notes for engineering students.
Author Name: Arun Paul
Analog Electronics Short Notes Pdf Part 8
Here we have listed some analog electronics short notes for all types of exams like diploma engineering, degree engineering, and GATE exam and many more. In every page, we have listed 10 short analog electronics questions and answers and anyone can download it by a single click for future use.
1. What is Faithful Amplification?
Faithful amplification means amplifying an input signal without any distortion throughout all parts of the waveform. It ensures that the transistor operates in the active region for the entire input cycle.
2. What is Transistor Biasing?
Transistor biasing is the process of applying proper DC voltages and currents to a transistor to ensure it operates in the desired region for amplification or switching.
3. What are the Types of Transistor Biasing?
The types of transistor biasing are: Base Resistor Method, Collector-to-Base Bias, Voltage Divider Bias, and Emitter Bias. Each method controls the transistor’s operating point differently.
4. What is Stabilisation?
Stabilisation refers to maintaining a stable operating point of a transistor, despite temperature changes or transistor replacement. It avoids signal distortion and performance variations in amplification circuits.
5. What are the Need for Stabilisation?
Stabilisation is needed to prevent drift in the operating point due to temperature variations, changes in transistor parameters, or power supply fluctuations, ensuring consistent amplifier performance.
6. What is Thermal Runaway?
Thermal runaway occurs when a transistor’s collector current increases with temperature, generating more heat, which further increases current, potentially damaging the transistor if not properly controlled.
7. What are the Essentials of a Transistor Biasing Circuit?
A transistor biasing circuit must provide: a stable operating point, temperature stability, low power consumption, and proper current and voltage levels for faithful and efficient transistor operation.
8. What is Stability Factor?
The stability factor (S) measures how much the collector current changes with temperature. Lower values of S indicate better thermal stability and a more reliable transistor circuit.
9. What is Base Resistor Method?
The Base Resistor Method uses a resistor connected between the supply voltage and the base of the transistor. It provides base current to bias the transistor in the active region.
10. What are the Advantages of Base Resistor Method?
This method is simple and inexpensive, easy to design, and uses fewer components. It is suitable for basic applications where precise bias stability is not critical.