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Harvesting Radio Frequency Energy

EFY Bureau
Most people do not realise that there is an abundance of energy all around us, at all times. We are being bombarded with energy...

Noise Meter

EFY Bureau
Normally, sound intensity up to 30 dB is pleasant. Above 80 dB, it becomes annoying. And if it goes beyond 100 dB, it may...

Low-Cost Hearing Aid

Pradeep G Electronics Designer from Kochin
Commercially available hearing aids are quite costly. Here is a low-cost hearing aid circuit that uses just four transistors and a few passive components. On...

Electrical Engineering Projects | Electrical Engineering Project Ideas

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

Simple Video Amplifier

EFY Bureau
There are times when you want to view the video clips taken by your camera on your TV. You can do so by interfacing...

VLSI Industry Offers Mostly Verification Based Jobs

EFY Bureau
Today, VLSI devices are found everywhere around us. We find advanced VLSI chips in our cars, cell phones, household appliances, cameras, medical devices and...

0-100°C Temperature Detector

EFY Bureau
Here’s a temperature detector system capable of remote temperature reading without transmission losses in the conditioning circuit. The IC AD590 (IC4) is used as...

Developer Board Trends for Industrial Applications

Vertica Asthana
Industrial boards are regular design boards that embed multiple functions in one single unit or board, allowing users to interface smoothly with any application...

An Introduction to Power System Harmonics (Part 2)

EFY Bureau
Read part 1 What harmonics are not? Now let us clear some misconception related to harmonics. Often the failures of equipment like motors, capacitors, devices like AC...

An Introduction to Power System Harmonics (Part 1)

EFY Bureau
Harmonics creates pollution in power system just like carbon dioxide creates air pollution. Industries are more aware of direct costs related to energy consumption of...
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