Questions tagged [power-line-communication]

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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Implementation of a capacitive coupling circuit for power line communication (PLC)

Introduction: Hello everyone, I just wanted to see if there is anyone out there who is familiar with power line communication technology that can help me figure out what is wrong with my LTSpice ...
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1 vote
1 answer
84 views

How does send and receive work in Ethernet over power and what standard describes this?

From what I understand in 100/1000BASE-TX Ethernet, two pairs are adopted; one for transmitting and the other for receiving. What I'm wondering is how Ethernet over power works given that it's ...
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Preferred method of communication from the inside of a breaker box

I am developing a smart meter that would measure 3-phase current on the main circuit breaker (residential or industrial) and would broadcast the data to an MQTT server. My question is: what is the ...
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1 vote
2 answers
238 views

DC or AC Power Line Communication 12V-5A

I am designing a Power Line Communication Network which has to power several LED lights, which will be consuming top 5A of current, and send their control information, RGB values for each light. The ...
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7 votes
7 answers
3k views

Cable standard for data and power

I am looking for a cable standard to control and power a device from its controller. I need to send 5V/10A but also control (not sure yet what protocol it could be but I don't need a high speed, 9600b ...
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Problem with data transfer using USB power lines (so no data lines)

I am using a Omnidots SWARM vibration sensor to measure vibrations on construction sides, works fine but I do need a battery from Omnidots in order to make it work off-grid and those batteries are ...
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Voltage controlled current line driver for PLC

We are designing a power line communication system using FSK. We are working in narrowband with a carrier frequency at 87.5kHz. For this system a line driver that increases the available power from ...
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1 answer
48 views

PLC carrier frequency

I am trying to build a communication system over a power line using FSK. I want to stay within the frequency band A of the CENELEC protocol which goes from 3 to 95 kHz. I am trying to determine ...
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-1 votes
3 answers
161 views

Single capacitor for Powerline communication - AC coupling

First of all: I am not talking about traditional powerline communication (ethernet protocol etc) but about a very simple and primitive communication, like serial data transmission (https://en....
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1 vote
1 answer
68 views

8Mbps power line communication with PLC \ Homeplug

I'm trying to design a circuit to transmit data over the power lines. The data I'm trying to send is real time FFT of about 100k samples per second, for 32bit data this comes to about 3.2Mbit data per ...
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2 answers
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How does Powerline cope with line fluctuations

I have a powerline (Ethernet over power) between two sockets in the house. And it seems to work even when I turn some heavy load (ie hairdryer, washer, etc) to the point even the lights dim for a ...
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1 answer
225 views

How to design Power Line communication with line transceivers?

I am trying to design a communication system that will send data signals over a 400V DC voltage line by using line transceivers. I attached the LTspice schematics below. The transformer is for ...
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2 answers
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In 2020, what are the most common approaches to power-line-communications for hobbyists? (updated)

I'm looking for modern control protocols, designs and/or components to simplify controlling (and running) a very low power system on a chip safely from mains power. I'm in the USA, and on a hobby ...
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1 answer
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Over how many floors can powerline work?

My girlfriend lives in the same building as a couple of friends of hers. She lives in the 1st floor and the friends live in the 6th floor. As she doesn't have a telephone line in her room and wants ...
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2 answers
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Implementing powerline communication on a high voltage DC line with an AC power-line adapter

I am currently working on a tethered UAV project (please refer this). I am thinking of tethering the power as well as data through the two power cables that will go up to the UAV. I plan to use 300V ...
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-1 votes
1 answer
89 views

PLC Audio Transceiver

So the idea of my project is to simply pass through an audio signal which is recorded using a microphone and then transmit it to the power line and on the receiver part the audio will be played by a ...
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0 votes
4 answers
361 views

Home automation: why is wireless more popular than data over power line? [closed]

This is a question for discussion... I have recently started looking in to home automation and "smart devices" and see a clear tendency for everything to run on WiFi, with some exceptions of bluetooth,...
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1 answer
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Noise in transmission system

Does external noise (not electrical noise) affect system voltage? If so how does a source of sound energy distort a voltage waveform? https://youtu.be/4TCnYYpZxEc What exactly is happening in this ...
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0 votes
1 answer
282 views

DC Power Line Communication (PLC) low pass filters

I've seen many times that a low pass filter needs to be implemented before a switching power supply in DC power line communication transceiver boards. Why is that? I assume that the switching power ...
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1 answer
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Ethernet over Powerline working between apartments. Should I be worried? [closed]

We have two different apartments, side by side (same floor), with separate electrical panels. For some reason Powerline can transfer Ethernet between the two apartments (with a bit under 60Mbps ...
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0 votes
1 answer
348 views

BNC cameras over CAT5 to powerline adapters then to DVR? [closed]

My apologies if this has been asked before. I have four BNC cameras connected to video baluns then connected to CAT5. Each CAT5 cable from the cameras meet in a junction box and then the video ...
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1 vote
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140 views

Built-in power amplifier of the ST7580

The ST7580 is a power line communication device that can be controlled with any host controller. The ST7580 has a buil in power amplifier to allow it to send a modulated signal (0Hz to 250kHz) as far ...
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2 votes
3 answers
2k views

AC (230V, 50Hz) line detection using H11aa1

I am new to Power Electronics, I am working on to AC line detection using H11AA1 IC. Schematic is as shown here. With the following calculation, I figured out the resistor value R1=8K ...
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0 votes
0 answers
75 views

Digitally selectable filter for the ST7580 [duplicate]

For the ST7580, it uses PSK or FSK to send a signal over power lines. In the design guide the example is designed for an FSK or PSK signal to be transmitted at 80 kHz see page 23 for reference to the ...
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2 votes
1 answer
96 views

Mains Filter for Power Line Comunication

I have two questions about Mains filters and their impedance effect on PLC. 1) With respect to signal propagation relative to the Line impedance: As the signal is sent, via the power line, it will ...
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2 answers
1k views

Data over DC Power, mono-directional, simplest circuit

(To preface, I will probably just run 4 wires, with RS485 on 2 and power on the others, but this came to my head, and I started thinking about it.) I was thinking of a simple way to send simple low ...
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1 vote
1 answer
270 views

FCC vs CENELEC-B band for IoT application using PLC

I have done some research on the topic but I have not found any conclusive evidence. I want to design a system where I use the existing cabling inside a building to communicate with various IOT ...
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2 votes
2 answers
132 views

Switching mode power supply for Power Line Communication

For a Powerline Communication device that uses the frequency band 42 to 89 kHz. I need to choose a power supply that will not add noise in the powerline and kill my communication band. There are two ...
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1 answer
138 views

ST7590 Power Line Communication chip integrated with a PIC18 microcontroller

I am using the ST7590 chip for PLC purpose which integrates with an STM controller, but my company uses Microchip controllers. I have signed an SLA so I will not post or talk about the non-public ...
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  • 369
2 votes
2 answers
1k views

How to design a sharp 200kHz band pass filter

I have made an a fm communication system to send audio through power lines. The center frequency is 100khz or 200 khz and maximum frequency deviation is ±10khz(with no IF stage). The modulator and ...
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0 votes
3 answers
2k views

How does powerline ethernet work in terms of home wiring? [closed]

I know that not all power sockets are in the same circuit, they are separated in the fuse box.How does powerline ethernet work across different circuits then?
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-1 votes
1 answer
54 views

What may be the consequences of AC frequency variations on powerline network adapters [closed]

There has been several reports lately of variations of the main frequency of AC current in European households. What do you think could be the consequences on network signal when using network over ...
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3 answers
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Challenges of Power Line communication

I am looking into Power Line communication (PLC) as a means for smart metering. It looks totally possible to send the data from the meter to the source of the power supply or the transformer. Most of ...
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1 vote
1 answer
92 views

Filter for Spectrum Analyzer

I want to build a data acquisition device to collect electromagnetic interference signatures of household appliances on the home electrical network (power line). In fact I hope to harvest datasets ...
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0 answers
80 views

Smart grid communications

For my final project, I am looking about smart grid. What I want to know is that what kind of communication is done in smart grid and the appliances, protocols used etc. Can I extract a data whether ...
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0 votes
1 answer
365 views

How to turn a PLC smart meter into 3G or Wifi [closed]

My utility has deployed bout 300,000 ZX E221 Three Phase Prepayment Smart Meters and they consist of a Meter control unit (MCU) which the consumer cannot access and a User Interface Unit (UIU), which ...
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1 vote
2 answers
1k views

Notify arduino over powerlines [closed]

As presented in the picture, there are 2 Arduinos in 2 separate rooms, hooked up to the power sockets (controlling a SSR circuit for each socket). I need a simple approach to make A1 notify A2 (in ...
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1 answer
659 views

Power line communication by inducing a signal into a wire

I would like to make a small board with a simple MCU that just repeatedly sends a message via a modem on one end of a power line wire (14awg or so). On the other end will be a similar device for ...
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Why not include data into a SMPS?

Something I have been thinking that could drastically reduce the cost of powerline devices in a bridge that uses the switching circuit to provide both regulation and data. Basically you could have a ...
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3 votes
5 answers
2k views

Signal and power cable over long distances

I am working on a hobby project where I am trying to build a ROV (Remotely Operated Vehicle) for underwater use. The ROV will have some electronic parts, that are powered with 12v and 5v, that I have ...
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2 votes
3 answers
568 views

What is the typical 230 VAC power line RLC characteristics?

If we take a typical 2- or 3-wire power line how do I estimate its parasitic capacitance, resistance and inductance? I tried to find this information at internet sites of wire manufactures but looks ...
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0 votes
1 answer
1k views

RF cable with DC power cable?

I have a satellite communication system at office running on C-band. The C-band is downconverted to L-band and carried to the l-band modem. With this RF coaxial waveguide/cable, +12V DC power cable ...
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2 votes
2 answers
1k views

Very simple signalling over 12V DC power wire?

I found some DC power line comms circuits but they seem too complex for my needs. I have 6 outside LED RGB lamps that are linked with a single 2 core cable running around the edge of my garden, it is ...
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2 answers
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Why is there so little interest in powerline communcations? [closed]

It seems that a power line protocol would be a really good way to help increase the range and reliability of wireless IOT networks. Wireless networks are always going to have areas that are hard to ...
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3 votes
1 answer
192 views

Multiple-terminal notification system to make calls between rooms

TL,DR: How to implement notification system with multiple terminal devices, which allows to make call from any terminal to any other terminal? Main constraints are not using programmable chips/MCUs (...
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0 votes
2 answers
539 views

PLC For MV Networks

Can power line communication work over both live LV (+-230V) and MV (11kV) conductors? Is there hardware available that makes this possible? Up to what voltage is power line communication possible?
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1 vote
1 answer
2k views

How to simulate lossy power line on LTSpice?

I need to add lossy power line in LTSpice model to be able to simulate the signal transmission over this line. This means that I will need two components: 230 VAC power source model asset power line ...
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1 vote
1 answer
160 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 ...
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1 vote
2 answers
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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 ...
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1 vote
1 answer
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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 ...
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