Have you ever watched a laser cutting machine? Ever wondered how light beams cut through metals? Well, if you study deep about laser cutting there is very interesting science behind the scenes. A laser cutting machine operates by applying high energy (often in gigawatts level) laser beams to a particular point, and these high energy […]
Shopping around for a new wallet? Then you must have encountered wallets that boast of having RFID blocking technology embedded in them. RFID technology is a fairly new concept in the market and this article will help you understand what it is and how can you make an RFID wallet yourself. First, let’s get you
Rheostat – Working One of the most omnipresent electric components is the resistor. In applications where variable resistance is required, potentiometers and rheostat are mostly preferred. We have already discussed potentiometers in our previous article about the same. Here we shall discuss about rheostat in detail. What is a Rheostat? Rheostat is a type of
This article is developed as an ultimate guide on RFID reader module and RFID tag – and explains how it works. We have published many interesting projects using an RFID reader module – like RFID Attendance Management System, Â or RFID based Access Control System. We have also published simple RFID reader based projects like a
Bluetooth modules are used for short distance and point-to-point wireless data transmission and reception. The range of distance varies from module to module depending on the version of the module being used. For DIY projects, these are available as breadboard friendly modules. Even though these modules (hobby purpose modules) do not provide access to all
When summer sets in, it can be a misery to wage a battle with the heat. Thankfully, you can turn down the thermostat of your HVAC unit and create a comfortable and pleasant indoor temperature. Similarly, in the winter months, you can crank up the thermostat and keep cozy and warm. Homeowners often don’t pay
A look into the electronic circuit board mostly shows wires with colorful bands, called resistors. These color bands indicate the values of those resistors like the identity card does for us. With these color bands, we can identify the resistive value and its percentage tolerance of a resistor. For large power resistors, the resistor body
In this article we will take a look at Debugging feature of Keil uVision. In Previous Article we had seen how to create project, hex file and building Project. Once you build your project and if you see 0 errors and 0 warnings you are half way through your project. Now what is debugging? Debugging is
An Introduction to Keil MicroVision Embedded system means some combination of computer hardware and programmable software which is specially designed for a particular task like displaying message on LCD. If you are still wondering about an embedded system, just take a look at these circuit applications using 8051 microcontroller. You can call these applications embedded
The two most common/confused words in digital communication – Bit rate and Baud rate. Generally, communication is concerned with transmission of data. In digital communication, there are two entities that are needed to carry out communication – the data to be transmitted and the signal over which the data is transmitted. Now, we have two
This article is a little off topic as it is not related to electronics! However I thought this would be useful for some one who manages a Vbulletin forum software. For those who find the name “Vbulletin” alien, it’s a forum management software. Recently we lost access to our “administrator” account of our forum software!
In this guide, let’s learn in detail about Push Pull Amplifiers. We’ve covered theory and applications behind a push pull amplifier. We’ve also demonstrated different types of push pull amplifiers, like Class A, Class B and Class AB push pull amplifier models. A push pull amplifier is an amplifier which has an output stage that
There are many display devices used by the hobbyists. LCD displays are one of the most sophisticated display devices used by them. Once you learn how to interface it, it will be the easiest and very reliable output device used by you! More, for micro controller based project, not every time any debugger can be
Let a movie be in 3-D or an ordinary 70mm projection. We have always loved it for the story, sound effects, visual effects, and many other factors. But latest technologies have improved the way in which graphics and other effects have been introduced in each frame. Out of them IMAX is the most popular. The
Out of many semiconductor controlled devices, MCT is considered to be the latest. The device is basically a thyristor with two MOSFET’s built into the gate structure. A MOSFET is used for turning ON the MCT and another one is used for turning it OFF. The device is mostly used for switching applications and has
Most of the electronic circuits used in Circuitstoday.com have different applications of the transformer. Therefore, it is important to know the working principle, construction and types of transformers used in different analog circuits. What is a transformer? A transformer can be defined as a static device which helps in the transformation of electric power in
I hope you all might have gone through the PIC (Peripheral Interface Controller) tutorial developed by our contributor. This post is aimed to organize the tutorial in order (which is created as individual articles), so that all our readers can access the tutorial easily and efficiently. We have arranged the PIC tutorial  in order from
When audio signals are transmitted over thousands of kilometres through radio transmission, the audio frequencies that lie within the frequency range of 15 Hertz to 20 KiloHertz has very small signal power and thus cannot be transmitted via the antenna for communication purposes. The radiation of electrical energy is only possible at frequencies above 20
A PCB is used to connect electronic components electrically. This is done by making conductive path ways for circuit connections by etching tracks from copper sheet laminated onto a non-conductive substrate. A PCB consists of a conducting layer that is made up of thin copper foil. The insulating layer di-electric is laminated together with epoxy
Terahertz transistors are the new generation semiconductor transistors developed by Intel Corporation. The researchers in Intel had developed a new transistor structure that maintains Moore’s law and would lead them into the discovery of these high speed new generation transistors. The terahertz transistor basically has higher speed (in GHz), High power efficiency, and high heat
Thin film solar cells are the new generation solar cells that contain multiple thin film layers of photo voltaic materials. The thin film solar cells (TFSC) are also known as Thin Film Photo Voltaic cell (TFPV). The thicknesses of thin film layers are very less as (few nano meters) compared to traditional P-N junction solar
Metal Oxide Varistor (MOV) Basics of Varistor A varistor/voltage dependent resistor (VDR) is a component which has a voltage – current characteristics that is very much similar to that of a diode. This component is used to protect electrical devices from high transient voltages. They are planted in the devices in such a manner that
Working of SWR Meters This article focuses on the concept of Standing Wave Ratio, its measurement using SWR meters, directional swr meter, Voltage Standing wave ratio (vswr), Swr bridge circuit, applications and problems with an SWR meter. SWR Meter IMAGE SOURCE SWR meters are used to measure and denote the standing wave ratio in a
What is a Smart Antenna? Smart Antennas, also known as multiple antennas, adaptive array antennas, and so on is used to increase the efficiency in digital wireless communication systems. It works by taking the advantage of the diversity effect at the transceiver of the wireless system that is the source and the destination. The term
RedTacton Technology This detailed article on Red Tacton technology is developed by our team for students as a Seminar topic for their academic needs. We have referenced various research papers,reports and other documentations for developing this article. We have discussed about various infrared and Bluetooth wireless technologies in our recent posts. But the technology has
