Electrical engineering

Basics of serial communication The serial communication port is full duplex, meaning that it can transmit and receive simultaneously. It is also a receive buffered, meaning that it can commence reception of the second byte before a previously received byte has been read from the receive register. The serial communication port receive and transmit registers

One of the most important components in any optical fiber communication system is the optical fiber itself, since its transmission characteristics play a major role in determining the performance of the entire system. Some of the questions that arise concerning optical fiber communication are What is the structure of an optical fiber? How does light

Interfacing Microcontroller 8225 The INTEL 8255 is a general purpose programmable peripheral interface. It is used to perform a variety of input/output functions in a microcomputer system. It is a 40 pin DIP IC. It requires +5V DC power supply for its operations. The 8255 Interfacing the microprocessor/ microcontroller on one side with peripherals on

Bit addresses for I/O – Microcontroller 8051 Microcontroller 8051 contains four I/O ports. They are Port 0, Port 1, Port 2 and Port 3. All ports are 8 bit ports. So totally it contains 32 I/O pins that connects the 8051 to the outside world. Port 0 pins may be served as inputs, outputs or

Assembler and Addressing Mode 8051 Assembly language is the human language most closely tied to machine language. addressing mode 8051 It is usually written in instruction mnemonics. Once the program has been written in mnemonis, it is translated into machine code by a process known as assembly the program. Assembly language programming requires the use

Direct Electronics Supply  These lectures follow the traditional review of direct electronics supply circuits, with emphasis on two- terminal networks and equivalent circuits. The idea is to bring you up to speed for what is to come. The course will get less quantitative as we go along. In fact, you will probably find the course

The principal light sources used for Optical Sources optic communication application are heterojunction-structured semiconductor laser diodes (also referred to as injection laser diodes or ILDs) and light-emitting diodes (LEDs).  A heterojunction consists of two adjoining semiconductor materials with different band-gap energies. These devices are suitable for fiber transmission systems because they have adequate output power

COMPONENTS OF AUTOMATIC CONTROL SYSTEM The basic components of an automatic control system are error detector, Amplifier and Controller, Actuator (power actuator), plant and sensor or Feedback system. The block diagram of an automatic control system The plant is the open loop system whose output is automatically controlled by closed loop system. The combined unit

Intro Control System Engineering Control system engineering theory evolved as an engineering discipline and due to universality of the principles involved, it is extended to various fields like economy, sociology, biology, medicine, etc. Control theory has played a vital role in the advance of engineering and science. The automatic control has become an integral part

Generally microprocessor alone is not a self-sufficient system. Instruction Set Architecture of 8051 It requires other components like memory and input/output devices to form a minimum workable system. Intel corporation decided to integrate a microprocessor along with I/O ports, minimum memory, programmable timer in a single package. This self- sufficient device is called microcontroller. Thus