Comunication over 24V AC power lines.

[simone2]

Posted on March 13, 2004 at 13:07

Comunication over 24V AC power lines.

[simone2]

Posted on March 03, 2004 at 08:05

I'm a novice and i have in my head an application that require comunication over power line.

I have a question about 7538: Is possible to use it for comunication over 24V AC power lines?

[dix]

Posted on March 13, 2004 at 13:07

Hi,

Yes you can use the 7538 modem over a 24Vac power network. However you will need to design your own coupling interface, as the circuit in AN1714 is designed to match the impedance of a 240Vrms mains ring. Your low volatge 24Vac network will have a different input impedance. You say you're a novice designer, then perhaps this isn't the ideal chip for you, as it a complex product and the design wouldn't be easy. Additionally the chip is only available in a TQFP44 package the has to be used on an SMD board. This makes the prototype costly, as you have to use a PCB layout. [ This message was edited by: Steveboy on 14-03-2004 15:09 ]