Discussion in 'Homework Help' started by Nirvana, May 29, 2005.

  1. Nirvana

    Thread Starter Well-Known Member

    Jan 18, 2005
    Can anyone tell me exactly what is a pulse, is it a 'burst' of dc voltage such as 5 Volts, which starts and stops when the user tells it to?

    Please Help
  2. David Bridgen

    Senior Member

    Feb 10, 2005
    Basically yes.
  3. kshtron

    New Member

    May 29, 2005

    Rise and fall of some quantity (usually voltage) for a period of time.

    pulse fall time
    Time for a pulse to decrease from 90% of its peak value to 10% of its peak value.

    pulse repetition frequency
    The number of times per second that a pulse is transmitted. Pulse rate.

    pulse repetition time
    Time interval between the start of two consecutive pulses.

    pulse rise time
    Time required for a pulse to increase from 10% of its peak value to 90% of its peak value.

    pulse width

    Time interval between the leading edge and trailing edge of a pulse at a point where the amplitude is 50% of the peak value.