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...

Voltmeter and Ammeter using PIC Microcontroller

Voltmeter and Ammeter can be easily made using PIC Microcontroller having ADC (Analog to Digital Converter). I am using PIC16F877A and the result is displayed on an LCD Display. PIC16F877A is enough if you do this project only for testing purposes. I suggest to use PIC with low pin numbers and multiplexed 7 segment display if you wish to use this as your measuring instrument.

Prerequisite

If you don't know the basis of PIC ADC and LCD Interfacing please read the following...

May 20, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsEmbedded, Microcontroller, MikroC, PIC, Proteus292 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...

Analog to Digital Converter (ADC) in PIC Microcontroller

ADC module of PIC microcontroller have usually 5 input for 28 pin devices and 8 inputs for 40 pin devices. The conversion of analog signal to PIC ADC module results in corresponding 10 bit digital number. PIC ADC module has software selectable high and low voltage reference input to some combination of VDD, VSS, RA2 and RA3. In the following example project we will convert analog input to channel 1 to 10 bit digital number with low voltage reference (Vref-) 0v and...

May 14, 2012By Ligo GeorgeMikroC, PIC Microcontroller, TutorialsADC, Microcontroller, PIC, Tutorials79 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...

DC Motor Driving using H Bridge

H Bridge is a simple electronic circuit which enables us to apply voltage to load in either direction. It is commonly used in robotics application to control DC Motors. By using H Bridge we can run DC Motor in clockwise or anticlockwise directions. This circuit is also used to produce alternating waveforms in inverters.

Basic H Bridge

Basic H Bridge Circuit When switches S1 and S4 are switched on, motor runs in clockwise direction. Basic H Bridge Working When S2 and S3 are switched on, motor runs...

May 13, 2012By Ligo GeorgeElectronicsDC Motor0 CommentsRead more...

Water Level Indicator and Controller using PIC Microcontroller

Here is a simple, versatile project which indicates the level of water and automatically controls it by using PIC Microcontroller. The Water Level Sensing Section senses the level of water in the tank and sends it (wireless) to the Receiver Section. Receiver Section is connected to the Controlling Section, which process the received information and produces visual, sound indications and controls the operation of the motor whenever required. The project is divide into 4 sections.

1. Power Supply Section

Power Supply section provides required supply for Receiver...

May 11, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsMicrocontroller, MikroC, PIC, Projects, Proteus269 CommentsRead more...

LCD interfacing with PIC Microcontroller – MikroC

A PIC Microcontroller can be easily made to communicate with LCD by using the built in Libraries of MikroC. Interfacing between PIC and LCD can be 4-bit or 8-bit. The difference between 4-bit and 8-bit is how data are send to the LCD. In the 8-bit mode to write an 8-bit character to the LCD module, ASCII data is send through the data lines DB0- DB7 and data strobe is given through the E line. But 4-bit mode uses only 4 data lines. In this mode the...

May 9, 2012By Ligo GeorgeMikroC, PIC Microcontroller, TutorialsLCD, Microcontroller, PIC85 CommentsRead more...

Author - Ligo George

Prerequisite

Features

Basic H Bridge

1. Power Supply Section