Basic Electronics Components And Their Functions Pdf -

A pair of coils wrapped around an iron core sat nearby. “Transformers change voltage levels—stepping them up or down—like translators converting one language to another so devices can understand the power they receive.”
Mira pictured power slipping between coils like whispered secrets.

Function: Convert physical quantities (temperature, light, pressure) into electrical signals.

| Sensor | Measures | Output type | |--------|----------|-------------| | Thermocouple | Temperature | Voltage (mV) | | Phototransistor | Light | Current variation | | Potentiometer | Position/rotation | Resistance change | | Microphone (electret) | Sound | AC voltage | | Accelerometer (MEMS) | Acceleration | Digital (I²C/SPI) or analog voltage | basic electronics components and their functions pdf

Function: Miniaturized electronic circuits containing thousands to billions of components (transistors, resistors, etc.) on a single chip.

Common ICs:

| IC Family | Examples | Function | |-----------|----------|----------| | 555 Timer | NE555 | Oscillators, PWM, timing delays | | Op-Amps | LM358, LM741 | Amplify voltage differences | | Voltage Regulators | 7805, LM317 | Provide stable DC voltage | | Logic gates | 7400 series (AND, OR, NOT) | Digital logic operations | | Microcontrollers | ATmega328 (Arduino) | Programmable control |

Packages: DIP (through-hole), SMD (surface mount), TO-220. A pair of coils wrapped around an iron core sat nearby

A small toggle switch clicked under Mira’s finger. “Simple but essential,” said Arun. “Switches open and close circuits—like latches on doors controlling who may enter.”
Mira liked the satisfying click that connected and disconnected a path.

Arun held a cylindrical cell. “Batteries store chemical energy and provide steady electrical power—a portable source that wakes devices.”
Mira thought of batteries as tiny reservoirs of stored sunlight. A small toggle switch clicked under Mira’s finger

A three-legged component caught Mira’s attention. “Transistors are powerful: they act as switches and amplifiers. With a small input signal, they can control a larger current—like a tiny manager directing a workforce.”
Mira saw the transistor as a lever that could turn a whisper into a shout.