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Optical Smoke Alarm

This optical smoke alarm (Fig. 1) is built around opto-interrupter MOC7811 (IC1) and dual op-amp LM358 (IC2). When thick black smoke enters in the gap...

Solve Electrical Circuits With Solve Elec

Solve Elec, as the name says, is a software that makes the task of dealing with electrical designs a lot easier. Right from the...

Simple Low-Noise Audio-Distribution Amplifier

This article describes a low-cost audio-distribution low noise amplifier based on hybrid or mixed technology. Input to the amplifier is from low-noise, high-gain npn transistor....

Tiny Nano-Power OpAmp Boosts Sensing Accuracy, Consumes Negligible Space and Power

New Delhi, December 13, 2016 - With its tiny 1.2mm x 1.3mm outline and typical current of only 900nA, the TSU111 nano-power opamp from...

12V Battery Charger-Cum-Variable Power Supply

The circuit presented here can charge a 12V lead-acid battery of 50Ah to 80Ah (even up to 100Ah) capacity and can even be used...

Implementing a Low Cost, Battery Powered, TDS Meter Using MCU and PSoC

One of the common method in determining the quality of water is the measurement of Total Dissolved Solids (TDS). TDS meter is a widely...

Audio Noise Limiter

Audio noise can be annoying, especially if you are trying to listen to a very weak radio station. Peaks of unwanted background noise completely...
Electrical Engineering Project Ideas

World’s Top 20 Electrical Engineering Project Ideas

Engineers are always in search of projects, and finding meaningful projects makes that search worthwhile. Listed below are some electrical engineering project ideas for...

Enkindle Your Appetite For The IoT

RIOT RIOT is a free open source operating system (OS) based on micro-kernel architecture. It is designed specifically for powering the Internet of Things (IoT)....

LME49710 Based Audio Amplifier

Listening to music on a self-made system is great. Good-quality audio amplifier circuits can be constructed with minimum components. Described here is an LME49710...

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