Thin Film Solar Cell

Vysakh June 6, 2011 8 Comments
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 cells. According to the type of photo voltaic material used, the thin film solar cells are classified into four types. They are 1) Amorphous...
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Multi-Channel Surround Sound Systems

Vysakh July 11, 2017 35 Comments
In this article, the working and basics of multi-channel surround sound system is explained along with images. The different types of sound systems available and other common sound formats are also explained in detail. Related Articles WORKING OF AMPLIFIERS WORKING OF SPEAKERS MOTIONAL FEEDBACK AMPLIFIER Multi-channel Audio Multi-channel audio systems are widely used in modern sound devices. The term “multi-channel audio” means that, the audio system can be capable of handling multiple audio channels (usually called audio tracks) to...
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Beware: Your car may be hacked!!

john April 28, 2011 No Comments
We have always been scared about our mobiles and computers getting hacked. Now it is time to know that there will be a time in the near future where people can easily hack cars. The car designs are becoming more and more sophisticated and you can also notice the change of simple mechanical automobile designs to a sophisticated network which includes almost 70 computers, collectively called Electronic control Units (ECU’s). All these computers are connected to each other and...
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Lightning/Surge Protector Circuit Using Gas Discharge Tube (GDT)

john April 26, 2011 4 Comments
Gas Discharge Tubes (GDT) – Introduction GDT’s are special type of gas filled tubes used for wide range of electronic/electrical circuits for providing protection against lightning and other power surges.  These tubes basically has two electrodes that are kept inside a gas filled closed envelope. In case of electronic applications, the container is mostly ceramic in nature. For high grade electrical applications military tubes are used. The electrical characteristics of this tubes depends on the pressure and composition of...
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Transmissive Film – Working

john April 26, 2011 No Comments
All the possible technologies come in the form of gadgets in automobiles like cars. These gadgets not only help in reducing accidents, but may also make the car more luxurious and comfortable. Some cars like the latest BMW X5 has almost 50 latest technologies integrated inside which no other cars can even think about. There will be different types of 3-D displays along with anti-crash sensors a the rear end of the vehicle. All these ideas were provided by...
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Here comes power from a magic cube!!

john April 20, 2011 6 Comments
Our days of exploiting non-renewable sources of energy for electricity are going to end soon!! The reason?? – BLOOM BOX 😀 It may sound like some small generator box but a whopping $400,000,000 has already been invested for developing this technology all around the world. The idea behind this technology was proposed by a rocket engineer named K.R. Sridhar. He was working for NASA in a project that could produce oxygen in Mars. When NASA scrapped the Mars mission,...
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Three phase rectifier using 20L6P45

admin April 20, 2011 3 Comments
Three phase bridge rectifier using 20L6P45. Three phase full wave rectifier circuit is an advanced power rectifier circuit mostly used for industrial DC applications. This module basically has 3 phase inputs and a single DC output. Most of the industrial power supplies such as DC motor drives, welding units, etc are used these kinds of rectification unit. A simple 3 phase rectifier circuit (using20L6P45) and its specifications are given below. Three phase system: In a three phase system there...
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Ever heard of refurbished electronics?

john April 18, 2011 1 Comment
Refurbished Electronics Suppose you are looking for a new laptop for your college. You have a brand in mind, but is a little too expensive for your budget. You leave the idea behind and search a web portal for a laptop with lesser features of memory and processor for your budget. This is when you suddenly see a link in the website that says “Refurbished Computers”. You don’t know what it is and so click on the link to...
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Wireless Power Transmission

john April 16, 2011 3 Comments
Wireless Power Transmission Most of us at home maybe using multi-plug to connect all the electronic devices with power cords. You may have even got confused to get the right cord for unplugging it among the other cords that lead to the same outlet. At last you pull one out and hope that it is the right one. This is one of the main problems with electric connections. Though it makes the life of people simpler, it can also...
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Planet Images and Analytics Now Available Through Cloud Based Services

john April 15, 2011 No Comments
The U.S. Geological Survey has been keeping a record of all the satellite images since 1972. This record contains all the tracks of changes that have occurred globally in the field of agriculture, cartography, geology, forestry, regional development, education, and national security. These images have been a proof of the global changes that has occurred throughout the world. But these records were kept restricted from viewing by the common people as it could pose a threat to some of...
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Faster Data Transfer with Point and Paste Technology

john July 21, 2011 3 Comments
The web technology has become so advanced that data can be transferred in seconds from one device to another and that too within seconds. The fame of social networking sites has attracted people to upload millions of photos and videos from all over the world. One of the most common type of data transferring method is the e-mail. Through an email, links of different websites, photos, chat, jokes and so on can be easily shared with friends, family and...
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Invention of Superconductors Turns 100

john April 12, 2011 No Comments
Superconductors It has been a century since the discovery of Superconductors. The discovery was made by Heike Onnes on April 8th, 1911 at the Leiden Cryogenic Laboratory in Netherlands. The first experiment involved the immersing of a mercury capillary in liquid helium. In this experiment, Heike Onnes noticed the resistance of the mercury dropping to zero as soon as the temperature reaches 3 Kelvin’s or 3 degrees above absolute zero temperature. This was the first phenomenon which clearly showed...
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Few LM317 voltage regulator circuits

admin April 11, 2011 31 Comments
Some circuits based on LM317 voltage regulator Few useful circuits using the voltage regulator IC LM317 is shown here. LM317 is a three terminal voltage regulator IC from National Semiconductors. The IC is capable of delivering up to 1A of output current. Input voltage can be up to 40V and output voltage can be adjusted from 1.2V to 37V. Typical positive voltage regulator circuit using LM317. A classic voltage regulator circuit using LM317 is shown above. Input voltage is...
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Water level Controller

admin January 22, 2014 166 Comments
Water level controller circuit Note:- We have developed another water level controller circuit using micro controller AT89S51 from Atmel. If you are interested, read that too :- Water level controller using micro controller Are you familiar with the basics and the different applications of the 555 timer IC. If not, we recommend you 3 books that provide a very good understanding of the IC and its applications. You can check out the reviews and buy the book from our...
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New Nanomaterial Developed to Kill Drug Resistant Bacteria

john April 6, 2011 1 Comment
Nanotechnology has once again proved its worth in the medical field. Researchers had recently developed a solution that can be rubbed on the skin to remove all bacteria’s that cannot be killed by the existing antibiotics and drugs. More advanced studies have led to the discovery of a microbial agent that can be directly injected into the body to kill the strong bacteria’s. The basic semiconductor manufacturing principle was used to manufacture such an agent. The research team included...
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Infrared (IR) Blaster

john April 6, 2011 No Comments
Introduction An IR Blaster is a device that functions or imitates an IR Remote Control in its features. This device is used to control other devices. If this device is connected to a PC, it can be used to control all the other IR devices that are present in the room with the help of that PC. The deice is relatively small compared to other IR devices and can be self-powered by just plugging them to the device that...
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StunRay Technology to Substitute Tasers and Guns to be used on Suspects

john April 4, 2011 1 Comment
StunRay Technology We have seen movies where a suspect points the gun at the cops who are forced to shoot him to save their own lives. Due to this, either one or both of them get hurt. A new technology (also can be called as a weapon) called StunRay has been developed by a company called Genesis Illumination which can be used to capture the suspect without much violence and bloodshed. The device they developed has already been patented...
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Direct Conversion of Solar Energy into Fuel

john April 1, 2011 5 Comments
The concept of transforming solar energy directly into fuel is not easy. The method was tried out by researchers for the past decade and many prototypes were developed. But all the past attempts had some basic problems like life span, cost and efficiency and even the combination of all three. Some ideas remained intact as the materials required to conduct the experiment was very costly and were also not abundant. As the basic idea was to commercialize it, there...
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Problems that Electric Vehicles will face in the future

john August 4, 2011 3 Comments
Electric charging of a Chevy Volt The main idea behind using electric vehicles is to stop the use of non-renewable source of energy like gasoline. For this purpose, all automobile companies are trying their best to develop electric as well as hybrid cars so that the use of gasoline can be restricted to a certain level. New cars like Chevy Volt and Nissan Leaf have already been released in the market and they seem to be widely accepted...
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Airplanes to be built with Carbon Nanotube Composites

john March 28, 2011 1 Comment
As explained earlier, the nanomaterials are lighter, stronger and long lasting than other materials. This advantage has been exercised in replacing the aluminium body of airplanes with composite materials including nanomaterials. Related Articles NANOTECHNOLOGY LATEST RESEARCH ON NANOTECHNOLOGY NANOELECTRONICS IMPLICATIONS OF NANOTECHNOLOGY As such a composite material has less weight; the whole body weight of the airplane will almost reduce to half the original weight. This will help in reducing the fuel consumption of the airplane. Another advantage is...
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Implants to Make People Talk After Vocal Cord Paralysis

john March 28, 2011 No Comments
Electrode Implant Vocal Cord Paralysis is a state which happens to most people who have been suffering from a stroke, an injury on the head or even after effects of other diseases. As a result, the person may suffer from difficulties in talking, breathing and also swallowing. The whole damage is done on the elastic bands of the muscle tissue that helps us to talk. The best treatment available for such a condition is a surgery or even speech...
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Nanocircuits

john March 25, 2011 No Comments
Nanocircuits In this article the basic nanocircuitry is explained in detail. The different parameters like transistors, interconnections and architecture are also explained in detail. The implementing methods and production methods are also explained in detail. Related Articles NANOTECHNOLOGY NANOMATERIALS NANOTECHNOLOGY – TOOLS AND INSTRUMENTS NANOELECTRONICS JUNCTIONLESS TRANSISTORS TO REVOLUTIONIZE CHIP TECHNOLOGY As the term implies, nanocircuits are basic electrical circuits that are designed and operated in the nanometre scale. Even though, the nanocircuit of a processor that is used...
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Metal Oxide Varistor (MOV)

john March 24, 2011 9 Comments
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 it will short itself when a high current is produced due to the high voltage. Thus the current dependent components in the device will...
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Nanoelectronics

john August 13, 2017 2 Comments
Nanoelectronics – Nanotechnology in electronics This article explains the basics of Nanoelectronics and its concept. The different approaches are also explained in detail. Related Articles NANOTECHNOLOGY NANOMATERIALS LATEST RESEARCH ON NANOTECHNOLOGY IMPLICATIONS OF NANOTECHNOLOGY Nanoelectronics is based on the application of nanotechnology in the field of electronics and electronic components. Although the term Nanoelectronics may generally mean all the electronic components, special attention is given in the case of transistors. These transistors have a size lesser than 100 nanometres....
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Implications of Nanotechnology

john March 21, 2011 1 Comment
Nanotechnology Implications In this article, the different implications in nanotechnology is explained in detail. The benefits f nanotechnology in different fields along with the health implications is explained in detail. Related Articles NANOTECHNOLOGY NANOMATERIALS MOLECULAR NANOTECHNOLOGY (MNT) LATEST RESEARCH ON NANOTECHNOLOGY NANOTECHNOLOGY – TOOLS AND INSTRUMENTS The fields in which the implication of nanotechnology extends are numerous. Some of the most common fields are computing, engineering, biology, chemical, communications, material science different systems and many more. Through nanotechnology, there...
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