BEEE Unit 4

Analog Electronics

A branch of electronics dealing with continuously variable signals, used in radio and audio equipment.

Diode

A semiconductor device that allows current to flow in one direction and is used for rectification.

Zener Diode

A type of diode designed to allow current to flow in the reverse direction when the voltage exceeds a specific value.

V-I Characteristics

The relationship between voltage and current in a circuit element, represented by a graph.

Forward Bias

Condition in which a diode is connected to a voltage source that allows current to flow through it.

Reverse Bias

Condition in which a diode is connected in the opposite direction, preventing current flow.

Half Wave Rectifier

A rectifying circuit that allows current to flow during only one half-cycle of the AC input.

Full Wave Rectifier

A rectifying circuit that converts both halves of the AC input signal into DC output.

Transistor

A semiconductor device that can amplify or switch electronic signals.

Operational Amplifier (Op-Amp)

A high-gain voltage amplifier with a differential input and usually a single-ended output.

Comparator

A device that compares two voltages and outputs a signal based on which is higher.

Optoelectronics

A field of electronics involving the interaction between light and electronic devices.

Transducer

A device that converts one form of energy to another, often signals for measurement.

Optocoupler

An electronic component that allows signals to be transmitted between two isolated circuits using light.

Light-Emitting Diode (LED)

A diode that emits light when an electric current passes through it.

Solar Cell

A device that converts light energy directly into electrical energy.

Multivibrator

A circuit that generates non-sinusoidal waveforms, often used for timing applications.