1000 Threads found on edaboard.com: Communication Over Dc Power Line
I find out that we can send data (RS485) on DC power line (+12 , GND).
now I have 4 questions:
1- can I couple RS485 ICs (ADM485) to bus with Capacitors for block DC ?
2- what is value of termination resistor? (how calculate)
3- what length cable I can use? (RS485 + DC power(12v))
4- I have one master uc and many client, now, (...)
Microcontrollers :: 02-19-2011 03:47 :: meysam_abbasinia :: Replies: 8 :: Views: 5398
Is it possible to communicate over dc power line of 12V as a master slave rs 485 communication.
Is there any specific IC's available.
If possible please tell me how to do that?
Power Electronics :: 01-05-2013 11:45 :: Murugesh_89 :: Replies: 4 :: Views: 706
You already considered modulation. That's clearly the regular way for any kind of powerline communication. You have two options:
- use one of the existing powerline modem chips respectively chip sets, available from various vendors
- design a basic bidirectional modem on your own, e.g. using FSK
Hobby Circuits and Small Projects Problems :: 11-12-2009 02:28 :: FvM :: Replies: 5 :: Views: 6534
hi! does any of u know whether ST7538 can be used for dc power line communication??
Professional Hardware and Electronics Design :: 01-27-2004 03:31 :: yongfiona :: Replies: 0 :: Views: 1259
I need help to developing DC power communication using PLC
I need documantation,shematic ingineer project,books, any think wich can help me
Electronic Elementary Questions :: 04-07-2009 04:27 :: soft2005 :: Replies: 5 :: Views: 3043
i am doing my final year project and have to use a modem for DC power line. do u think ST7538 can be used for that purpose?thanks!
Professional Hardware and Electronics Design :: 01-27-2004 02:18 :: yongfiona :: Replies: 3 :: Views: 1927
i want to build a DC power line low pass filter design using chokes/ferrite beeds/inductor coils for 3A load current for 5V, and 2A load current for 12V. can any one give me any tips or links or schematic how to choose the correct type and part no of inductor coil and capacitor.
thanks in advance
Professional Hardware and Electronics Design :: 05-03-2005 09:10 :: muruga86 :: Replies: 1 :: Views: 1812
anyone have success with power line communication over a DC bus? or know of any research papers on the subject? anyone selling such a product?
Hobby Circuits and Small Projects Problems :: 09-09-2007 21:42 :: Mr.Cool :: Replies: 7 :: Views: 10363
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 (...)
Analog Circuit Design :: 12-14-2004 19:56 :: IanP :: Replies: 2 :: Views: 1758
Did anyone doing project using this PLC before?? I am currently plan using this PLC as communication medium for the power measurement it suitable?? I will use the PC interface to control home appliance and measure the power of home appliance with using PLC as communication. Hope can get some comment at here.
Embedded Systems and Real-Time OS :: 09-19-2011 08:28 :: chuat :: Replies: 1 :: Views: 855
I'm having a project which need to send the Video signal at the rear side of the car using the power line communication over DC.
1) Can the Video be able send through the PLC over DC with high data rate? We are targeting on 640x480, 16bit, 30 Frame.
2) If the video signal can be send (...)
PC Programming and Interfacing :: 10-16-2012 06:50 :: kahjoo :: Replies: 9 :: Views: 1357
I want to have a half duplex communication using max 485 IC through the 12V DC line.
Is it possible to use A,B line as the power line itself? If possible please tell me how to do this?
Digital communication :: 01-05-2013 01:41 :: Murugesh_89 :: Replies: 0 :: Views: 240
Thank for the replies. I have also seen another method which uses an magnetic ring to couple the signal to the power line (inductive couple?) How should I decide which method to apply? In addition, I have come across some IC for power line communication,e.g ST7537, will I be able to achieve the (...)
Analog Circuit Design :: 03-26-2012 02:27 :: Manchested :: Replies: 11 :: Views: 1068
Hello Zia ,
If you are using 220V AC you can use any power line modem from Maxim , microchip ,TI , Ethran etc .But most of these are expensive and requires propitiatory transformers for coupling and needs propitiatory analog front ends . I have found a link that supplies power line modems for a few thousand INR you can (...)
Service Manuals, Requests, Repair Tips :: 07-17-2012 03:00 :: bgpavan :: Replies: 25 :: Views: 4550
I don't think that it works without modulation, similar to PLC (power line communication) techniques.
Microcontrollers :: 02-03-2013 12:34 :: FvM :: Replies: 2 :: Views: 239
I am using pic to pic communication over DC power lines. Both pics are 18f4431's. The tx pin on my sender pic keeps on blowing. What could the reasons be? Could it be, that i am trying to draw too much current from my pic? Maybe i should insert a driver or an optocoupler. The tx pin stops working as soon as i switch on a (...)
Power Electronics :: 09-21-2010 03:04 :: Ianb007 :: Replies: 2 :: Views: 484
This chip is intended for AC communication. I don't think it will work over DC lines since you need to couple a signal through a transformer. You'll need a different approach for DC communication -- perhaps 1-wire communications. Our company uses a technique of modulating the DC power (...)
Network :: 05-30-2011 06:10 :: grieblm :: Replies: 5 :: Views: 2245
Hi, has someone any kind of experience or information about
implementing a communication over a dc power bus. In particular that
dc bus is the output (700V) of various step-up machines that are in
parallel elevating the voltage of independent photovoltaic strings in
order to be the input of a three-phase inverter to be the (...)
Professional Hardware and Electronics Design :: 03-25-2007 18:31 :: aberro :: Replies: 0 :: Views: 1541
Did anybody use the infrasys power line communication IC over dc line.
I am using this IC and facing some issues.
When i am using a single master and single slave,the working is good.
But when i include another slave, communication is not good. Neither slave 1 and slave 2 not working (...)
Microcontrollers :: 03-04-2013 06:47 :: Murugesh_89 :: Replies: 0 :: Views: 203
just an easy idea:
On your power supply side you need a resistor and a differential amp
to measure the current through the supply lines.
On the ?C side you connect a port pin to a transistor that will draw some current from the power lines.
thats all for unidirectional communication.
Microcontrollers :: 08-12-2004 14:57 :: Aoxomox :: Replies: 2 :: Views: 1598
This chip maufecturerd by simens for EIB power communication protocol
Search EIB or TPuart in google and you will find DS and source code how to connect
All he best
Microcontrollers :: 02-25-2005 10:31 :: bobcat1 :: Replies: 13 :: Views: 15180
There is no such a thing like protocol or standard for communication over power lines.
People try to use power lines with or without success.
What you need to connect 2 PC are power lines modems.
Or if you wish to cre
Analog Circuit Design :: 03-15-2005 20:58 :: IanP :: Replies: 3 :: Views: 1008
Hello all. I'm searching for a way to transfer both data AND power over a single twisted pair cable. The data itself is a differential RS485 signal from a PIC micro and DS75176 at either end, running at 19200bps. The power is DC 24v, with a maximum current in the area of a couple of Amps.
I've never tried to do this before and searching (...)
Hobby Circuits and Small Projects Problems :: 11-08-2006 14:34 :: seven_segment :: Replies: 4 :: Views: 2202
I need to send and receive DTMF signals over a 24 Volt DC line. Can anybody suggest how DTMF can be modulated over DC line. I plan to decode it using MT8870 decoder. Any help/ guideline will be highly appreciated.
Digital communication :: 05-10-2009 01:58 :: aroymkp :: Replies: 7 :: Views: 1588
I am looking for a simulation software which should help me in power line communication and power electronics circuit simulation. I am working on a project of data transmission over power lines. I was using "protious" but it didn't worked. I can not find my required IC's in (...)
Software Links :: 03-10-2010 08:15 :: fawadbaig :: Replies: 0 :: Views: 414
Search MAXIM site for power line communication
They have several IC who use CDMA for transferring data over power
All the best
Professional Hardware and Electronics Design :: 07-17-2010 08:27 :: bobcat1 :: Replies: 5 :: Views: 1748
I will use PLC ( power line communication ) for remote control . I must use power cable ( 220 Vac ).
There are many PLC modules and IC's . But all pruduct support sending very big data ( 1-5 Mbps ).
But i need to transfer only one bit data.
Is there any simple methode for it.
I will send only (...)
Electronic Elementary Questions :: 05-23-2011 03:54 :: cnurettin :: Replies: 3 :: Views: 795
Thanx.. I'm newbie and I even don't know basics of power line communication. It will be grateful to you if you suggest some ideas where i should begin at. Thanx in advance
Electronic Elementary Questions :: 10-17-2011 13:58 :: guruvigneshwaran :: Replies: 5 :: Views: 1055
I am a third year EE student who has to do a final year project. I am thinking of doing a project on the above topic. The idea is to use power line communication to control devices (home or factory appliances) and for data acquisition.
The problem is I have no previous knowledge on this regard. Can someone help point me in the (...)
Analog Circuit Design :: 01-20-2013 04:11 :: gehan_s :: Replies: 3 :: Views: 310
In my project I use ST7537 with a COP8 mcu at 2400 bauds. I use HDLC protocol with CRC16 checksum. See the application notes for ST7537. Be careful with switching power supply connected to main power. This produce noise that produce errors in communications.
PC Programming and Interfacing :: 09-19-2002 20:57 :: joebazoka :: Replies: 15 :: Views: 10910
You can use the ST solution for power line Modem. There are a more powerfull solution for high rates communication from nSine:
Professional Hardware and Electronics Design :: 02-17-2003 11:12 :: joebazoka :: Replies: 17 :: Views: 4867
Please i must know how can i do to find the cross over of the power line using pic, what hardware i should use? And how can i make the software?
Thanks a lot and sorry about the english
Microcontrollers :: 10-26-2003 09:42 :: Jundiaí :: Replies: 1 :: Views: 2608
Does anyone of you know is there a cheap powerline(over 220V, 50Hz lines) communication module which would be bidirectional(for sending and receiving data, not at the same time), the bps speed is not important, it can be very low like 1200 bps, even smaller 600 bps or 300bps, (...)
Hobby Circuits and Small Projects Problems :: 11-14-2003 11:36 :: polarized :: Replies: 4 :: Views: 2734
An internet search using "power line communication" and "power line voice communication" will give you a lot of information.
Two companies with off-the-shelf products are:
As Flatulent points out - the power lines are not public proper
Professional Hardware and Electronics Design :: 07-17-2004 17:09 :: House_Cat :: Replies: 4 :: Views: 4617
2. communication media to relpace the coaxial cable of security video.
3. any kinds of contemporary communication media
Hobby Circuits and Small Projects Problems :: 07-31-2004 02:41 :: mild seven :: Replies: 4 :: Views: 1816
The subject of your post and content are two different unrelated things.
power line communication is possible thru devices such as made by the HomePlug company.
Signals do traverse thru shielded cables such as RF Coax cable for cable modem.
Professional Hardware and Electronics Design :: 09-04-2004 07:09 :: delay :: Replies: 6 :: Views: 2292
Is it possible do make the power line (220V,50Hz) as the medium for RS-232 full dupplex communication? Any one have implemented this?
Please share your knowledge and opinion.
Thx + Rgds,
Microcontrollers :: 08-23-2004 20:53 :: johan_tr2000 :: Replies: 5 :: Views: 3391
X10 possibly ? only 60 bps is a good point.
I don't need a hight speed communication.
But if I use a 24 V dc power source There is somenthing else ?
PC Programming and Interfacing :: 02-11-2005 12:32 :: Inkwaterman :: Replies: 4 :: Views: 1098
hi i need any information about power line communication for important
Microcontrollers :: 03-08-2005 09:52 :: Enzoo :: Replies: 3 :: Views: 819
i had done a project in power line communications and had discussed it several times in the forum, plz search the fourm for power line communications.
if u r interested in purchasing a power line modem PLM click here:
if u want to see a (...)
Microcontrollers :: 03-13-2005 10:03 :: snabilat :: Replies: 29 :: Views: 8344
hi i neeed help in choosing modem for transmit and recieving in power line communication..any help will save me plzzz i have nooo time iam tooo late on my shedule
Microcontrollers :: 03-22-2005 09:55 :: Enzoo :: Replies: 1 :: Views: 692
this called power line communication (PLC) also the X10 is its protocol.
you can search the web for x10 and you will find very things about protocol,hardware,software,...
also see these sites sites
2 a site with some goods for sale.
Professional Hardware and Electronics Design :: 03-26-2005 06:32 :: is_razi :: Replies: 3 :: Views: 2215
Yes, I need this too for digital data communication, Speed above 9600 baud.
Any one can help?
Thx + rgds
Microcontrollers :: 05-29-2005 23:05 :: johan_tr2000 :: Replies: 5 :: Views: 3176
we are group built project of home automation using power line communication using pic 16f877 , we get the project from microchip and the code also , but we didn't have any result on lcd
can you help us!
Electronic Elementary Questions :: 06-11-2005 17:11 :: yousefkamil :: Replies: 6 :: Views: 2663
power line data communication to connect two computers through electric lines.
so that data can be transmitted and received through power lines via serial port.
so tell me how it can be done?
just tell me the detail.
Other Design :: 07-12-2006 04:45 :: Suraj Shrestha :: Replies: 9 :: Views: 6033
give me the idea about isolation circuit
i mean any means to isolate the main circuit while interfacing with power line
normally for power line communication to transmit/receive data
isolation circuit may be any form of transformer
Other Design :: 07-13-2006 04:02 :: Suraj Shrestha :: Replies: 2 :: Views: 1211
this people are doing some research...
chk their website..
(SiConnect provides market leading in-home powerline communications technology)
Robotics and Automatics Forum :: 08-18-2006 04:38 :: tom_hanks :: Replies: 7 :: Views: 1856
Can some body help me in modem selection.
Actually the problem is making "data tranfer between two devices" serial communication over telephone line between two remote devices.
As in simple scinareo i should have used RS485 for serial communication which dosnt work for more than 1.2Km. But the distance is still (...)
Professional Hardware and Electronics Design :: 01-11-2007 04:31 :: tarungupta83 :: Replies: 3 :: Views: 1901
PLC or power line communication is definitely an established form of long distance delivery of broadband on the Trunk power line that spans across the country. This way power transmission companies are entring the business of Telecom Transmisson on their already in place infrastructure.
Network :: 05-20-2007 06:12 :: ricksidd :: Replies: 3 :: Views: 1984
I want to build power line carrier communication using FSK with full duplex.
But I am not sure how to do this?
Hobby Circuits and Small Projects Problems :: 06-19-2007 16:09 :: nvmahajan :: Replies: 2 :: Views: 1742