Hacks of Electronics
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 […]
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, […]
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 […]
If you’ve ever opened up an electronic device – anything from a laptop charger to a pair of gaming headphones – you’ll notice tiny components scattered across the board. Among them, the diode is one of the most essential. It doesn’t look like much, but it plays a massive role in how circuits behave and […]
Most people never think about transistors. They’re too small to see, hidden away inside the gadgets we use every day. But without them, modern electronics wouldn’t exist. From the phone in your pocket to the microwave in your kitchen, transistors quietly do the heavy lifting. So, what exactly are they, and where do you find […]
We’re surrounded by lots of “smart” things: phones that do more than we ever expected, apps that solve equations, graph functions with a tap, or even voice-command calculators. With all that power in our hands, it’s fair to wonder—are old-school electronic calculators still useful? Turns out, the answer is yes. The Invention of Electronic Calculators […]