Custom-Made Magnets

The properties of a substance depends almost entirely on its constituent atoms and how these atoms interact with each other. But a finite number of atom types, imposes a limit on the variation of properties that a conventional material may have. But a new range of engineered materials called metamaterials have opened a whole new dimension in this field . Metamaterials are composed of sets of nanostructures which are able to interact with electromagnetic waves in almost the same way...

June 7, 2012By Karthik NarayananElectronicsCustom-Made, Luk'yanchuk, Magnets, metameterials, nanostructures0 CommentsRead more...

RFID : Radio Frequency Identification

What is RFID or Radio Frequency Identification ? How it Works ? Radio Frequency Identification is a term that used to describe a wireless system that used for Automatic Identification and Tracking, it uses Radio Frequency electromagnetic fields to transfer data from tag attached to an object. Unlike UPC (Universal Product Code) Bar Code, this technology doesn't need line of sight communication and it can be read through clothing, human body or any non metallic materials. Therefore it is an excellent replacement for...

June 4, 2012By Ligo GeorgeElectronicsRadio Frequency, RFID1 CommentRead more...

The First Chemical Circuit Developed

Ion Transistors for the transport of both positive and negative ions, as well as biomolecules had been previously developed by a group of Organic Electronics research team at Linköping University. Now Tybrandt has now succeed in developing circuits using these Transistors similar to traditional silicon electronics. In essence of this technology we can build computer chips that can directly interface with our body cells. The major advantage of chemical circuit is that the charge carrier consists of chemical substances with various functions and this gives us new opportunities to...

May 30, 2012By Ligo GeorgeElectronics, Electronics NewsChemical, Human, Transistor0 CommentsRead more...

Nano Vacuum Tubes : The Future of Computing

Vacuum Tubes Reloads.... Vacuum Tubes are used in computing, switching, amplification and rectification right up to 60s. Then it died a quick death since most applications solid state device such as semiconductor devices have replaced them. We all know that Semiconductor devices are small in size and cheaper than vacuum tube devices. Silicon transistors are cheaper but they are slower and susceptible to radiation. The performance of Silicon Transistors, far away from Vacuum Tube devices due to their compact size, no heating time, reduced...

May 29, 2012By Ligo GeorgeElectronics, Electronics NewsNano, NASA, Silicon, transistors, Vacuum Tubes0 CommentsRead more...

Implementing XOR and XNOR Logic Functions using Diode Bridge and Transistor

Using DTL (Diode Transistor Logic) we can implement XOR and XNOR Logic Functions with a minimum number of Discrete Components. When we need to design Logic Circuits operating for higher than standard supply voltages, such as 30 and 24V, we can implement it by using regulators with standard logic family and interfacing it through Level Shifters. Alternatively we can implement Logic Gates from discrete electronic components and can be operated directly from the supply voltages if the Logic Circuits are not complex. We know that...

May 28, 2012By Ligo GeorgeElectronicsDigital Electronics, electronics, Gates, XNOR, XOR5 CommentsRead more...

Samsung’s New Transistor Structure using Graphene

Samsung Electronics has Developed a new Transistor Structure using Graphene to increase the possibilities of transistor in future, reported online by the journal Science, 17th May. The core R&D incubator for Samsung Electronics, Samsung Advanced Institute of Technology has developed new Graphene Transistor Device structure to hold the Moore's law true for a decade. This research is regarded as a significant step in the development of transistors, that can overcome the limitations of conventional Silicon Transistors. We all know that Semiconductor Electronics Devices consists...

May 21, 2012By Ligo GeorgeElectronics, Electronics Newselectronics, Graphene, Moore's Law, Silicon, Transistor0 CommentsRead more...

‘Graphene Quilts’ To Cool High-Power GaN Devices

Gallium Nitride is a binary semiconductor commonly used in bright LEDs since 1990's and used in wireless applications due to its high voltage operation and high efficiency operation. Since 2006 Graphene Transistors have been offered commercially. But like all other high power devices, the problem is to remove significant amount of dissipated heat which has to be removed fast and efficiently. Various Thermal Management solutions such as Composite substrates or Flip-Chip Bonding (also known as Controlled Collapse Chip connection or its...

May 15, 2012By Ligo GeorgeElectronics, Electronics NewsCool, Graphene, High Power, Quilts0 CommentsRead more...

L293D – Quadruple Half H DC Motor Driver

L293D L293 and L293D are quadruple half H Bridge driver having high current capability. It can also be seen as a dual H Bridge driver for driving Motors. L293D can provide currents up to 600mA and L293 can provide currents up to 1A at voltages ranging from 4.5 to 36. Both L293 and L293D are designed to drive inductive loads such as solenoids, relays, dc motors, bipolar stepper motors and other high current or voltage applications.

Features

Wide range of supply voltage from 4.5 to 36v Separate Input...

May 14, 2012By Ligo GeorgeElectronics, ICDC Motor, L293D0 CommentsRead more...