Optocoupler Optoisolator Photocoupler
Active components Digital Electronics Diodes Electronics tutorial Integrated circuits (ICs) Power Electronics Protection Circuits Transistors

Photocoupler (Optocoupler / Optoisolator) – Construction, Working, Types & Applications

In modern electronics, signal isolation between different parts of a circuit is crucial for protection, noise reduction, and system stability. Optocouplers, also known as optoisolators, play a vital role in achieving this electrical isolation while allowing signal transmission. This article provides a thorough exploration of optocouplers (Optoisolator / Photocoupler), including their construction, working principles, advantages, […]

Photodiode vs Phototransistor vs Photoresistor
Diodes Electronic components Electronic devices Electronics tutorial Resistors Sensors Transistors

Difference Between Photodiode, Phototransistor and Photoresistor

In the field of electronics and optoelectronics, light-sensitive devices play a crucial role in converting light signals into electrical signals. Among the most widely used light sensors are the Photodiode, Phototransistor, and Photoresistor (also known as Light Dependent Resistor or LDR). Though they all respond to light, their construction, working principles, advantages, disadvantages, and applications […]