What is an Amplifier? We see amplifiers in almost all the electronic equipments around us. Though we usually relate them to stereo equipments they are also found in TV’s, computers, MP3 players and so on. All these devices have a speaker which is used to reproduce the original sound. Related Articles WORKING OF SPEAKERS MOTIONAL […]
Recycling E-goods All homes in this world have at least one electronic device and may be more. Some of them include computers, video games, mobile phones, printers, MP3 players and so on. When you buy a computer for the first time you use it as though it is the greatest gift in the world. When
Nowadays, there are a lot of touch screen monitors available in the market. They are made available in displays for computers, personal digital assistants, mobile phones and video games. A touch screen contains a visual display area which can be sensitive to the touch of our finger or other passive components. A touch screen
A strain gauge is a device that is used to measure the strain that occurs in an object. The device was invented in the year 1938 by Edward E. Simmons and Arthur Ruge. The device is still being used in many electronic circuits mainly as the principle sensing element for sensors like torque sensors, pressure
Description. The circuit given here is designed by Mr.Seetharaman V.S (seethasub@hotmail.com) from Chennai. Seetharaman’s comments about the circuit: This circuit is a modification of High & Low voltage cut-off with delay& alarm circuit appeared in Circuits today, which I have tried and found to be quite reliable. You can adopt this circuit with small modification.
What is a Wheatstone bridge? A Wheatstone bridge is an electrical circuit used to calculate an unknown resistance with the help of a bridge circuit. For this, the two legs of the bridge circuit are kept balanced and one leg of it includes the unknown resistance. The Wheatstone bridge principle is similar to the working of
In my earlier posts I have already explained the working of Charge-coupled devices and its application as an image sensor. Recently, most of the scanners and cameras have introduced a new image sensor called Contact Image Sensors [CIS]. Working of Contact Image Sensor Contact Image Sensor is one compact module consisting of three sub-systems. They
What is a Scanner? A scanner is a device that is used for producing an exact digital image replica of a photo, text written in paper, or even an object. This digital image can be saved as a file to your computer and can be used to alter/enhance the image or apply it to the
Here we are going to look at how a DVD player works and the essential components for its working. Parts of a DVD Player The DVD player is not only used for playing the data present in a DVD, but also to write the content onto a DVD. To know this process it is essential
Description. Designing and building a USB sound card is no longer a head ache because we have got the PCM 2702 integrated circuit from Texas Instruments. The PCM2702 is an integrated 16 bit digital to analog converter that has two digital to analog output channels. The integrated interface controller of PCM2702 is compliant to the
Description. Many electronic circuits dealing with audio amplifier circuits have been published here. This is just another one and here we use the TDA 1514 high performance hi-fi amplifier from Philips. The IC has a bunch of useful features like thermal protection, mute-standby facility, low harmonic distortion etc. The amplifier operates from a dual +25/-25
Description. The circuit diagram of a very simple voltage doubler using NE555 timer is shown here. Here IC NE555 is wired as an astable mutivibrator operating at around 9KHz. The base of the two transistors (Q1 and Q2) is shorted and output of the astable multivibrator (pin 3) is connected to it. When the output
Description. Here is the schematic of a 3 way active cross- over network circuit that finds a lot of application in audio amplifier systems. The heart of this circuit is National Semiconductor’s IC LF353 which is a dual JFET input operational amplifier with internally compensated input offset voltage. The IC LF353 has high bandwidth, low
After the invention of the Digital Versatile Disc [DVD], the true digital sound effect and high clarity video effects were brought to all homes. But the hunger for high-definition videos and audio along with a high-capacity storage disc led to the invention of the Blu-ray Disc [BD]. They have the same capabilities of a DVD,
What is Flexplay DVD? In most foreign countries, people rent a lot of DVD’s from the shop. All you have to do is watch the movie and return the DVD back within the agreed time. But, if we are pretty much unorganized, we tend to forget about the DVD. This is where the DVD rental
What is a DVD? A Digital Versatile Disc/Digital Video Disc [DVD], is an optical disc storage medium like a compact disc [CD], but with greater data storage and high quality audio and video formats. The clarity, when comparison with a CD is almost six times higher. A DVD can be termed in different ways according
In the blog post on fuel cells I have explained the way hydrogen and oxygen react to produce electricity with water as a by-product. There also some disadvantages with this method. The problems include the improper storing and distribution of hydrogen. What is a fuel processor? When comparing a hydrogen fuel cell to that of
Description. The circuit given here is of a 2 x 32 Watt stereo amplifier using the famous TDA2050V IC from ST Microelectronics. The TDA2050V is an integrated monolithic 32 watt class AB audio amplifier IC available in the Pentawatt package. The IC has lot of good features like low distortion, short circuit protection, thermal shut
What is a Fuel Cell? Fuel Cell is an electrochemical device that is used to convert an open source fuel into electricity. An electrolytic process has to take place inside a cell in which there is an open source fuel [hydrogen] and an oxidant [oxygen]. Both the fuel and oxidant reacts in the presence of
Sometimes you may be unable to find a particular inductor the market. This is actually a problem faced by most of the electronic hobbyists and the problem becomes more serious if your project is RF related. The inductors required for RF circuits (antenna, tuner, amplifier etc) are almost impossible to find in the market and
Description. A lot of electronic circuits in the domain of audio amplifiers are already been published here. This circuit is a little different because it is a four channel amplifier. Each channel of this amplifier can deliver an output of 15Watts into a 4 ohm speaker. The amplifier can be operated from a single 12V
Although the below explained process is not applicable for any electronic circuits, you will clearly get a clear idea on how a rheostat works. DIY Rheostat – Components The components needed for the connection are Flashlight bulb and socket [1] Dry cell lantern battery/D-cell battery [2] Wire [About 15 to 17 inches and another one
Potentiometer and Rheostat In this article, the working and circuit symbols of potentiometer and rheostat are explained. The types of potentiometers used and their uses are also explained in this post. Rheostat vs Potentiometer is also explained. I have already explained the working of a variable resistor and its applications in electronic circuits. Here are
Variable Resistors – Working and Applications This article clearly defines and explains the working of variable resistors, the variable resistance specification, types, and applications. Variable resistors find its application in most of the electronic circuits used today. We have been getting a lot of comments with questions on how a variable resistor works and so
Cadence Design Framework II All the tools from cadence for the VLSI design process use the same unique database called Design Framework II (DFII). It is a binary database that stores the data as objects. In the world of Electronic Design Automation (EDA), there are different types of objects and each representing a distinct concept.
