Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Can I communicate over 24V DC Power Line?

Status
Not open for further replies.

BasePointer

Full Member level 2
Full Member level 2
Joined
Jul 3, 2002
Messages
130
Helped
6
Reputation
12
Reaction score
3
Trophy points
1,298
Location
TURKEY
Activity points
955
power line carrier 24v dc line

Hello,

I have some peripherals to communicate each other. I want to do this over their power lines. What is the easiest and cheapest way to do this ? What do you advise me to start ?

10x
 

powerline 24v

If the current is not very high through the power line, try modulating a subcarrier with DTMF tones ( the ones used into the telephones.
The carrier frequency can be i.e. 100 KHz or similar.
use FM modulation ( modulation index at least 1 ) to avoid interference from noise on the line.
Power can be some mW, the receiver is enough with a sensitivity of -60 dBm.
You can use the IF chain of any IC, for example MC13156, MC3362, etc.

Mandi
 

24vdc power filter

Try SEARCH in this forum.
There was similar topic some time ago: "RS-232 over power line"

In any case you will need Low-pass-filter for DC and High-pass-filter for communication. This can be accomplished by simple L-C combination.. DC power choke of, say, 1mH as power filter, and capacitor of 100nF as data in/out.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top