Power Supply Repair

Millions of engineers and scientists worldwide use MATLAB to analyze and design the systems and products transforming our world. Such huge usage leads to some very interesting prospects in designing. This list of 20 MATLAB projects ideas range over some of the solutions that use or can use MATLAB. After …

A miniature circuit breaker (MCB) automatically switches off electrical circuit during an abnormal condition of the network means in overload condition as well as faulty condition. Nowadays we use an MCB in low voltage electrical network instead of a fuse. The fuse may not sense it but the miniature circuit breaker does …

Switch mode power supplies (SMPSs) are used in a range of applications as an efficient and effective source of power. This is in major part to their efficiency. For anybody still working on a desktop, look for the fan output in the central processing units (CPU). That’s where the SMPS …

This article presents a simple, low-cost DC to DC converter that converts 3.6V-3.7V battery input into three outputs of 6V, 5.3V and 5V. These voltage outputs can be used simultaneously or separately. The converter is useful for digital and analogue audio equipment including portable audio amplifiers and MP3 players, and …

A light-dependent resistor (LDR) whose resistance is inversely proportional to the intensity of light is often used as a sensor in electronic projects that involve the use of light. This project uses an LDR to control the speed of a DC motor. Most outdoor LED displays and some indoor LED …

In this article, the author describes basic image processing using MATLAB software. MATLAB is a high-performance language for technical computing with powerful commands and syntax. It is used for many purposes like Maths and computation, data analysis, algorithm development, modelling stimulation and prototyping. Edge detection, noise and image histogram modelling …

Presented here is a GPS based vehicle tracking system based on the ATMega16 microcontroller using global positioning system (GPS) and global system for mobile communication (GSM). Contents This is a cheaper solution than a two-way GPS communication system wherein communication is done in both ways with GPS satellites. This project …

Light Fidelity (Li-Fi) is a new paradigm in wireless communication. In this article, we describe the design of a Li-Fi dongle (transmitter) and speaker (receiver) for audio and music applications. The proposed system is a replacement for wired speakers that plays audio signals received through light. The dongle can be …

Any radio telephone capable of operating while moving at any speed, battery operated and small enough to be carried by a person comes under the mobile communication systems. These communication systems may have different facilities. The different types of mobile communication systems are mobile two-way radio, public land radio, mobile …

The 555 timer IC is used in a variety of timer, pulse generation and oscillator applications. It can be used to provide time delays, as oscillators and as flip-flop elements. The 555 timer IC is an integral part of electronics projects. Be it a simple 555 timer project involving a …