An Analog Circuit is an electronic circuit that is used to process electrical signals in a continuous manner. It is an essential part of many electronic systems and devices. It is made using components such as resistors, capacitors, inductors, diodes, and transistors, which help in controlling and manipulating voltage and current.
- It perform operations like amplification, signal conditioning, and conversion in electronic systems.
- They are widely used in applications such as audio systems, communication devices, medical equipment, and power supplies.
- Examples of analog circuits include amplifiers, oscillators, filters, and rectifiers.
BJT (Bipolar Junction Transistor)
A BJT is a current-controlled semiconductor device used for amplification and switching in analog electronic circuits.
- Introduction to BJT
- BJT Biasing and Stability Analysis
- BJT Biasing Techniques and Stabilization Methods
Current Mirror Circuits
Current mirror circuits are used to replicate a constant current from one branch of a circuit to another using active devices.
- Current Mirror Circuits
- Modified Current Mirror
- Widlar Current Mirror
- Current Repeater
- Wilson Current Mirror
- Current Mirror Circuit Using MOSFET
BJT Amplifiers
BJT amplifiers are circuits that use transistors to increase the amplitude of input signals for various applications.
- Introduction to BJT Amplifiers
- Types of Amplifiers
- Practical CE Amplifier Circuit
- Parameters of an Amplifier
BJT Amplifier Configurations
These configurations define how a transistor is connected in a circuit to achieve different amplification characteristics.
- Introduction to BJT Amplifier Configurations
- Common Base (CB) Configuration
- Common Emitter (CE) Configuration
- Common Collector (CC) Configuration
Small Signal Models of BJT
Small signal models provide simplified representations of transistors to analyze circuit behavior for small input variations.
- Introduction to Small Signal Analysis
- Small Signal Model of BJT
- Hybrid (h-Parameter) Model
- Hybrid-Ď€ Model
- T-Model of BJT
Frequency Response of BJT Amplifiers
Frequency response describes how the gain of an amplifier changes with respect to different input signal frequencies.
- Frequency Response of BJT Amplifier
- Capacitances in BJT
- Low Frequency Analysis
- Miller’s Theorem
- High Frequency Analysis
- Upper Cutoff Frequency
Introduction to JFET Biasing & Amplifier
JFET circuits use voltage-controlled devices to amplify signals with high input impedance and low noise.
- Construction and Working of JFET
- JFET Characteristics
- JFET Biasing
- JFET Amplifiers
- Advanced JFET Amplifiers
- Small Signal Analysis of JFET
- Frequency Response of JFET Amplifier
MOSFET Biasing & Amplifier
MOSFET circuits are widely used for amplification and switching due to their high efficiency and scalability.
