Author - Ligo George

‘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 Electronics, Electronics News, , , 0 CommentsRead more...
ADC_Symbol

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 high...

May 14, 2012By MikroC, PIC Microcontroller, Tutorials, , , 79 CommentsRead more...
L293D

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 Logic...

May 14, 2012By Electronics, IC, 0 CommentsRead more...
dc motor

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 in anticlockwise...

May 13, 2012By Electronics0 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 Embedded, PIC Microcontroller, Projects, , , , 269 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 MikroC, PIC Microcontroller, Tutorials, , 85 CommentsRead more...

USB PIC Programmer : PICKit2

Microchip's PICKit2 is much more comfortable,reliable and powerful than the other programmers that we can find all over internet. It is a USB based ICSP (In Circuit Serial Programming) programmer. Since it is a first release, Microchip published all the resources of PICKit2 public, which includes hardware schematics and all source code of softwares used. Through this any one can add features, fix bugs and modify source code. Documents and other supporting files of PICKit2 are available at Microchip's Website. We have simplified the...

May 8, 2012By Embedded, Featured, PIC Microcontroller, Projects, , , , , , 176 CommentsRead more...
Push Button Switch

Using Push Button Switch with PIC Microcontroller

Introduction This article is meant for beginners in the field of microcontrollers. When I started with microcontrollers, as everyone I also need to learn how to interface a switch with microcontroller. Here we use PIC Microcontroller 16F877A and MikroC Pro compiler. This tutorial assumes you have basic knowledge about programming PIC Microcontroller, else you read the article Blinking LED using PIC Microcontroller. Push to On Switch Push to Off Switch In this tutorial we use a push button switch, when we press on it an LED...

May 7, 2012By MikroC, PIC Microcontroller, Tutorials, , , 148 CommentsRead more...
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