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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47 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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1answer
97 views

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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1answer
69 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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0answers
66 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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2answers
437 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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0answers
51 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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1answer
59 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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2answers
229 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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1answer
93 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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2answers
75 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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1answer
113 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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2answers
549 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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3answers
670 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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1answer
50 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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3answers
533 views

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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1answer
88 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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0answers
65 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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1answer
333 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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2answers
771 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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1answer
364 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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0answers
96 views

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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3answers
437 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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1answer
899 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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2answers
733 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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2answers
176 views

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 ...
3
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1answer
126 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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2answers
444 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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1answer
1k 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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1answer
147 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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2answers
65 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 ...
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1answer
86 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 ...
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5answers
778 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 ...
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1answer
1k 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 ...
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6answers
8k 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 ...
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1answer
1k 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 ...
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2answers
1k 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 ...
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1answer
544 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 ...
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1answer
240 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 ...
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1answer
244 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 ...
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1answer
137 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
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1answer
282 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 ...
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1answer
467 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 ...
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1answer
1k 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 ...
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2answers
5k 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, ...
6
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2answers
19k 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
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1answer
541 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 ...
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2answers
108 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 ...
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1answer
2k 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
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1answer
6k 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? ...
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1answer
983 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 ...