Archive for the ‘General’ Category

  • Digital Television Technology

    Jun 16, 13 • 2558 Views • General, Notes • • No Comments

    Digital Television Technology: The wonders of digital television have been heralded for more than two decades. Compared to  old analogue technology, the digital compression allows more channels to be transmitted with better image quality and improved

  • Random access and Polling

    Jun 16, 13 • 2797 Views • General • • 2 Comments

    Random access and Polling  Random Access Description- In case Random access protocol the channel is not divided but a complete bandwidth is given to all users. In case there are one or more  than one node transmitting at the same time then there is to

  • Structure of wireless communication link

    Jun 16, 13 • 12878 Views • General • • 3 Comments

      The structure of wireless communication link in Wireless operations permit services like long-range communications which are impossible or impractical to implement with the wires usage in communication. This term is commonly used in the telecommunication

  • Chopper

    Jun 12, 13 • 3067 Views • General, Notes • • No Comments

    1. CHOPPER 1.1 DEFINITION OF CHOPPER A chopper is a device that is static in nature and which is used to obtain a dc voltage(variable)   from a dc voltage (constant) source. A chopper is otherwise also known as dc to dc converter. They can be used in cars,

  • Inverters

    Jun 11, 13 • 8529 Views • General • • 1 Comment

    INVERTERS PULSE WIDTH MODULATED (PWM) INVERTERS Introduction Inverters are circuits responsible for converting DC to AC It helps in transferring power from a dc source to an ac load. The applications areas of inverters such as: Adjustable-speed ac motor