questions about getting both the energy required to power a device, and also data in one direction or the other or both, through a single cable.

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1
vote
1answer
37 views

Safe way to interface directly with HomePlug / Powerline

I'm looking to do some research into the actual messaging used by powerline adapters. I'm aware of the standards, but I'm specifically looking to see where real devices deviate from the standard, and ...
1
vote
2answers
33 views

How to get the transfer characteristics of power strip lines?

I am trying to design the Powerline Communication (PLC) module JUST for the 5-socket power strip (for demo purpose). So, I only care about the powerline network for those 5-sockets only. However, I ...
1
vote
1answer
40 views

Limiting wired low frequency signal transmission

I'm now considering TDA5051A to transmit information over the 230VAC power network. To avaid any interference between neightbours I will need to stop transmision beyond the appartment electrical ...
2
votes
5answers
138 views

Superimpose a data transmission on a custom AC voltage line

I hope this question is valid for this forum. I’m not looking for you to give me a working solution, my question is of the nature where I can find literature, other learning resources, which search ...
0
votes
1answer
81 views

Using of RF transcieivers to communicate over 230VAC powerline

Initially I need to communicate between several devices placed within one appartment (or a building). All those devices will be connected to 230 VAC power line. I'd like to skip any wireless ...
0
votes
0answers
38 views

Will grid tie inverter and powerline communications affect each other

Since grid tie inverters "conform" their power to match the frequencies of a home, would powerline computer communications such as this router be affected by or affect a grid tie inverter?
8
votes
6answers
2k views

Can the wire of a high voltage power line be used as the primary coil of an air cored transformer? [duplicate]

Back in the 90's I heard this story of a guy who in the 70-80's lived remotely near the power lines and that he was very good in electrical engineering and that he had free electricity by using the ...
0
votes
1answer
168 views

Can We send data using exisiting power outlets in homes

I am trying to build a project in which I want to transfer data through existing power outlets in a home through power lines while simultaneously using those outlets for power supply also. My question ...
6
votes
2answers
277 views

Observing effect of household appliances on powerline communication

I had been recently working on Powerline communication modems (PLC). I put two PLC modems at different parts of my home and observed the data transfer rate between them. However, I observed that when ...
0
votes
0answers
58 views

How much electromagnetic interference/pollution is produced by home power-line network adapters?

How much electromagnetic interference/pollution is produced by home power-line network adapters? How do they compare for example to WiFi routers? They operate on high frequencies to achieve high ...
-3
votes
1answer
129 views

Why so many capacitors in design?

I was looking the schematic for programming a standalone AVR chip. I am curious why we need so many capacitors. As far as i know, i know we need one capacitor on the power supply. I don't remember ...
1
vote
1answer
120 views

Best solution for making a LAN with 2 untwisted lines

I need to provide a best solution for establish a LAN for old train carriages in order to transfer low quality video surveillance data. Only existing lines are 2 wires untwisted throughout all ...
1
vote
0answers
97 views

Powerline modem ST7580 single channel mode

I'm trying to implement a powerline module with the ST7580 modem. There is a passive and active filter design in the application note laid out which I plan to modify according to my desired carrier ...
0
votes
1answer
102 views

How can power line devices be affected by a power supply?

I have two power line adapters plugged into mains and I've noticed that whether a cheap power supply is plugged in, the data transfer rate drops dramatically or even drops to zero. What's the theory ...
2
votes
1answer
150 views

Inductive and Capacitive couplers in power line carrier communication?

I have searched a lot in internet for getting simple circuit diagrams of Power line couplers (both inductive and capacitive) which I am supposed to explain to my students. Also our college library ...
0
votes
1answer
251 views

Cheapest communication solution including wifi bluetooth and ethernet

A few friends and I are underway designing a senior project. We are looking for ways to make our product cheaper, and of course it comes to our most expensive ic components. We haven't gotten very far ...
7
votes
1answer
479 views

Control a synchronous slave clock

I recently acquired a couple vintage simplex clocks that used to be in a high school. They were part of a clock system where a master clock controlled the whole operation of slave clocks. There were ...
-8
votes
2answers
1k views

Send a signal through the powerline [closed]

I would like to what is the easiest and cheapest way of sending a signal through a 110 volt outlet wiring to another outlet on the same phase or on a different phase. I would like to know if a light, ...
3
votes
2answers
6k views

Use power line to communicate between devices - simple communication

So I am a google programmer getting interested in hardware hacking. What I want to do: Use Arduino or a similar microcontroller to control the lighting in my house, of course for as cheap as humanly ...
2
votes
1answer
384 views

Simple data connection through powerline wires

In my home/office/business I have a 4 incoming electricity lines, (Government line, private subscription generator 1, private subscription generator 2, home gasoline generator) I want to send ...
-3
votes
2answers
93 views

How to send information over large number of client?

I have one master which needs to send information to lots of slave device ~1000 which needs to receive same information. As I need to power all of the slave device, I was thinking of using same wire ...
-3
votes
1answer
743 views

Power line communication over 220V 50Hz main line [closed]

I want to make a device to send and receive data using the main power line, and I want it to be compatible with the X10 protocol, but i have no resource on the circuit and I don't know how to inject ...
5
votes
1answer
2k views

How to couple a signal on to a DC line

I am using DPSK modulation on my signal and want to couple this onto a DC-signal. How will the hardware be set up for this? Is it enough to just couple my signal through a capacitor on to the DC-line? ...
0
votes
1answer
439 views

Can 1-wire (One-wire) sensors be used over power lines?

I'd like to sprinkle my house with 1-wire sensors (temperature - everywhere, humidity and flooding - in the basement), but the only wire in most locations is the power-socket (110V)... Can a 1-wire ...
3
votes
1answer
594 views

Coupling the powerline communication modem for 3 phase line

i recently assigned for the Powerline Communication project for transmission up to 200MBps.the problem occurred when trying to find circuit for coupling between the modem and the powerline cable.is it ...
3
votes
1answer
380 views

What are suitable transformer specs to use with LM1893 PLC modem?

I'm trying to learn about PLC (I know the risks), so I want to start with the simplest circuit specified in the LM1893 datasheet to use on 220v AC powerline. The transformer there doesn't have any ...
2
votes
3answers
894 views

Line, Neutral and Ground and another Ground

I try to make a 110VAC energy meter connected to my computer out of the CS5490 This IC measures voltage and current over a voltage divider and shunt resistor respectively and then calculates the ...
3
votes
2answers
314 views

Performance Analysis of PLC Modem

I'm an electronics and communications engineering student undertaking a project regarding the occurrence of Electromagnetic Interference (EMI) in power line communications (PLC). I would like to ...
2
votes
2answers
841 views

How to observe powerline modulated signal?

I was assigned to observe the modulated signal of a PLC modem, but I have not really started yet. How do I do this? Should I use an oscilloscope or spectrum analyzer? If so, do I just connect it to ...
5
votes
3answers
1k views

Implementing powerline communication on a battery-fed 12V line

I was wondering if anybody had any thoughts on whether it is possible to implement powerline communication on a lead-acid battery fed-12V power network. Characteristics: voltage: 12 V Fed by a ...
2
votes
3answers
445 views

Suggestion for an easy-to-use connector+cable for simple hobbyist sensor project

I'm implementing, as a hobby, a simple data logger. I previously asked a question about running a ~10m cable to the MCU for a Dallas/Maxim 1Wire sensor (and therefore 3 wires, since I'm not going to ...
2
votes
5answers
2k views

Simple power line communication circuit PLC design?

I need simple PLC power line communication design which I could transmit /receive a packet of data through two points ? Any block diagram with little details will be great for me . Update : Data ...
2
votes
5answers
1k views

Recommened chips for datacommunication over a low-voltage AC power line?

A client wants to send data (think 100 ... 10k baud) over a combined power / cable-TV coax cable, distances up to 1 km. The lower end of the spectrum (say up to a few MHz) is free, but the cable ...
3
votes
2answers
660 views

Power line communication, how to check if frequency is present

I'm trying to communicate on a power line without external filters (only a filter for the 50/60Hz), because I want to use only digital filters. My processor is a Cortex-M3 device running at 24MHz. ...
3
votes
1answer
3k views

What better options are there than the LM1893 for powerline communications?

I'm looking to build a home automation system which uses the powerline to carry the data between nodes. I have an old design based on a combination of LM1893, HC123 and 8748, but the slave board is ...
2
votes
1answer
687 views

Transmitting audio over variable voltage DC power line?

I have multiple generators that are producing a variable DC voltage between 0 and 18volts each that are being sent to an inverter for an AC output used to power various devices. I really need to be ...
4
votes
3answers
3k views

How do these powerline networking adapters work?

I have some powerline networking adapters which can transfer at a peak rate of 200 Mbps (I get around 60 Mbps typical, but I am sharing the network with many other devices and many pieces of equipment ...
5
votes
2answers
884 views

DC power line communications

I want to send a signal through the DC power lines used in railway compartments. Can you please help me to do that, or provide some documents or links?
6
votes
2answers
8k views

Power line communication principles

What are the principles of implementing Ethernet over power lines ? Is it reasonable/possible to create an Arduino shield which will provide both power & network ? (properly isolate the "dangerous ...
17
votes
11answers
11k views

Injecting a communication signal over DC power supply lines

I'd like to be able to daisy chain multiple devices using just the power supply wires and then inject a communications signal over the power lines to turn it into a half duplex network. Are there any ...