phase fired controller cuircuits/devices help

Discussion in 'General Electronics Chat' started by sunshine, Jun 14, 2013.

  1. sunshine

    Thread Starter Member

    Jun 18, 2008
    13
    0
    hi, i have red in books and online about phase fired control circuitry, and the different devices. but i didn't find a circuit or a device that can access the wave beyond 90 degrees in half wave, or first and third quadrant in full wave.

    so my question is, is there a circuit or a device that can be triggered to operate at angels beyond 90 degrees or 270 degrees?

    thanks.
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
    745
    Are you trying to make a dimmer controller or motor speed device using Triacs or Thyristors?
     
  3. sunshine

    Thread Starter Member

    Jun 18, 2008
    13
    0
    actually this might be a little bit strange, but what i'm trying to build is a power audio amplifier using a tda7264 chip. i wanted to control the volume in a new way, and efficient way by reducing the power itself. so, do you have anything in mind to help?
     
  4. sunshine

    Thread Starter Member

    Jun 18, 2008
    13
    0
    please ppl any help?
     
  5. sunshine

    Thread Starter Member

    Jun 18, 2008
    13
    0
    common guys any answer will be appreciated. thanks
     
  6. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    2,574
    230
    Can you visualize phase-chopping the output signal that is composed of combined non-sinasoidal waves with frequencies from 20Hz to 20Khz, and of varying amplitudes? I can't!

    Ken
     
  7. Ramussons

    Active Member

    May 3, 2013
    557
    92

    Can you give an abstract of what and how you intend to do?

    Ramesh
     
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