help-carrier current transmitter

Discussion in 'Wireless & RF Design' started by deepak007, Jul 13, 2008.

  1. deepak007

    Thread Starter Active Member

    Sep 30, 2007
    59
    0
    hello

    could anybody give me a carrier current transmitter and receiver circuit ? i want to transmit audio signal through power lines (via mains ac 220v). or please tell me how to inject RF energy(modulated signal) into (220v mains) power supply lines and also how to demodulate the same.my only problem is dealing with power lines. any resources / books on the above topic is appreciated.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Go to National Semiconductor's site, and download Application Note 146 -
    or click here: http://www.national.com/an/AN/AN-146.pdf
    It's a remote FM speaker system using an NE566 VCO/function generator and NE565 PLL Detector using household mains wiring.

    Neither of those ICs are in production anymore, but you may be able to substitute other components. It's the theory you're looking for.
     
    Last edited: Jul 13, 2008
  3. deepak007

    Thread Starter Active Member

    Sep 30, 2007
    59
    0
    if i simply take a battery operated fm transmitter and couple it to the mains using a .1uf 250v capacitor, will it be able to inject rf energy into mains? can i receive it using receiver kept close to power line? then, will there be any mains hum in the receiver?
     
Loading...