Hacks of Electronics
Here are the basic electronics tutorial circuits for beginners. You can find here tutorials on operational amplifiers (opamp), transistor, MOSFETs, 555 timer IC, audio amplifiers and many more.
A Solid-State Relay (SSR) is an electronic switching device that performs the same function as an electromechanical relay (EMR) but without any moving parts. Instead of mechanical contacts, it uses semiconductor devices such as thyristors, Triacs, MOSFETs, or transistors to switch electrical loads ON or OFF. Because there are no moving parts, SSRs offer longer […]
This article explores various types of PCB materials, their composition, electrical and mechanical properties, advantages, disadvantages, and applications in different industries. Printed Circuit Boards (PCBs) form the backbone of almost every modern electronic device — from small gadgets to industrial machines and communication systems. The performance, durability, and reliability of a PCB depend largely on […]
Let’s explore the various types of inductors, along with their unique properties and applications. An inductor is one of the fundamental passive components used in electrical and electronic circuits, along with resistors and capacitors. Inductors store energy in the form of a magnetic field when an electric current flows through them. The property of an […]
A laser diode is a semiconductor device that emits coherent light through the process of stimulated emission. It operates similarly to a light-emitting diode (LED) but produces a focused, monochromatic, and coherent beam of light. The emitted light waves have the same wavelength, frequency, and phase. The laser diode was invented by Theodore H. Maiman, […]
A Motion Sensor Light is an automatic lighting system that turns ON when it detects movement in its range and switches OFF after a certain period of inactivity. This system is widely used for energy conservation, security, and convenience. The circuit described here uses a PIR (Passive Infrared) sensor, a BC547 transistor, a relay, and […]
Understanding the common electrical sensors in healthcare and other medical devices is the first step toward appreciating the role electronics play in healthcare. This article explains the types, working principles, and applications of common electrical sensors used in healthcare in a detailed and easy-to-understand manner. Walk into any hospital today, and you will hear the […]