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Engineering Projects For You

Free electronics projects, circuit diagrams and software codes available for students and hobbyists. Complete instructions on DIY electronic devices also available. These projects have been tested by EFY and are available with source codes. These are helpful with understanding concepts of electronics including basic components. The projects are designed to be helpful for engineering students and professionals building their own designs and circuits. The projects are also compiled from time to time to provide a single destination for project junkies. Let us know how you feel about the content and any thing you would like us to cover in the future. We hope you enjoy the content on this page!

1kW Digital LLC Power Supply

Texas Instruments has developed a digitally controlled 1kW LLC reference design for server power supplies requiring high-speed load-transient response and a 12V output. Texas Instruments...

A Sub-₹100 iPod-Inspired Music Player Without an MCU

Back in the 2000s, the iPod was every tech enthusiast’s dream device. As engineers, we were always curious about how it was designed and...

Electric Vehicle Charging Controller Reference Design

What does an electric vehicle charging controller handle beyond power? This design combines vehicle communication, safety monitoring, and connector control. Designing an electric vehicle supply...

USB-C PD Reference Design Targets 96% Efficiency

A compact power platform combines GaN switching and digital control to improve USB-C charging efficiency, light-load performance, and system cost. The 140W USB-C Power Delivery...

1.2 V Low-Ripple Power Supply

Texas Instruments has developed a reference design for generating a low-ripple 1.2 V supply from a wide 3.8 V to 30 V DC input...

3 kW Server Power Supply

Reference design provides a high-density 50 V power supply using surface-mounted silicon carbide devices for server and telecommunications applications. Toshiba Electronic Devices & Storage Corporation...

Modbus RTU AC Power and Energy Meter

This Modbus RTU energy meter design is a low-cost, portable AC power testing and monitoring device that directly measures voltage, current, power, energy, frequency,...

300 W Automotive DC-DC Converter

Reference design provides an isolated 48 V output from a wide high-voltage DC input using a half-bridge LLC topology for automotive power systems. Texas Instruments...

USB Power Delivery Battery Charger

Reference design provides USB PD fast charging, bidirectional Type-C operation and power-path management for single-cell portable devices. Monolithic Power Systems has developed a USB Power...

USB-C PD Reference Design

A dual-port USB-C charger delivers up to 90W, shares power between ports, and protects devices from heat, voltage, and current issues. Microchip’s USB-C Power Delivery...

2 kW Four-Phase Interleaved Buck Converter

Reference design provides a high-efficiency 48 V to 12 V DC-DC conversion platform using coupled inductors and voltage-mode control. Texas Instruments has developed a 2...

240W Dual-Phase Battery Charger

Reference design provides a compact, high-density buck-boost battery-charging platform for notebook and portable applications. Texas Instruments has developed a compact dual-phase multi-cell battery charger reference...

Wi-Fi-Controlled Robot Toy Car Using IndusBoard Coin

This Arduino cloud-based IoT toy car can be controlled remotely using a smartphone, tablet, or laptop connected to the internet. The design can also...

Face-Tracking System Using A Laptop, ESP32, And YOLOE

The system combines a laptop running the YOLOE (You Only Look Once – Everything) face-detection model with an ESP32 for servo control and sensor...

AI-Based Substation Load Monitoring And Prediction

The growing electricity demand is increasing substation loading, making accurate load forecasting essential for transformer planning and reliable operation. This article presents an AI-based...

Wi-Fi Tool And Indoor Location Tracking Device

Modern Wi-Fi signals can do more than transfer data. These radio waves can be analysed using channel state information (CSI) to detect movement, estimate...

BFO Metal Detector

This BFO (beat frequency oscillator) metal detector system demonstrates the practical application of analogue signal mixing and processing techniques. Beat frequency oscillator provides one...

Edge AI Readiness Beyond The Model

Why deploying AI at the industrial edge demands far more than an accurate model. A representative industrial lab deployment revealed a gap between model performance...
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