Understanding X10 Power: Circuit Diagrams and Explanations"

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Discussion Overview

The discussion revolves around the operation of X10 power modules, specifically how they draw DC power in a loop-in wiring arrangement commonly found in older homes. Participants seek to understand the circuit diagrams and mechanisms behind these devices, along with alternative methods for creating similar electronic light switches.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant describes the loop-in arrangement of older homes where both wires to a light switch are live, questioning how X10 modules draw power from this setup.
  • Another participant expresses confusion about the initial query, indicating a lack of understanding of the X10 system.
  • A different participant suggests that there are standard power arrangements for plug-in units and mentions two methods for wall switch replacements, one involving low load resistance and the other using a small inductor.
  • One participant shares links to external resources about X10 technology, clarifying that they are interested in building their own electronic light switch and not specifically in X10.
  • Another participant notes that the X10 system appears to be tuned for 120VAC/60Hz and questions whether a European version exists.
  • A participant responds that the tuning is not specific and relates to the website's focus on American standards.
  • One participant suggests using a motion detector switch as a cost-effective alternative for obtaining the necessary power management circuitry for their project.

Areas of Agreement / Disagreement

Participants express varying levels of understanding regarding the X10 system and its power drawing methods. There is no consensus on the specifics of the circuit diagrams or the mechanisms involved, and multiple viewpoints on alternative solutions are presented.

Contextual Notes

Some participants mention the need for further analysis of the X10 power drawing method, indicating that assumptions about the system's operation may not be fully explored. Additionally, the discussion includes references to different voltage standards, which may affect the applicability of the X10 system in various regions.

juming
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Hey,

Older homes use a loop-in arrangement where the two wires coming down to a light switch are both live, and the neutral's nowhere near.
The X10 "plug n play" switches leak a small current through the light and draw their current from there... I was just wondering, how exactly do they do this?

Can someone point me in the direction of a full circuit diagram of how the X10 modules draw their DC power inline with the live??

Thanks :)
 
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Sorry, man... I have no idea what you're talking about. :confused:
 
For the pulg in units that something else plugs into. I think there is a fairly standard power arangement.

if you're talking about a replacement wall switch then I think there are two tap methods. One for power off just assumes a low load resistance, the other for power on uses a small inductor.

Don't have any X10 schematics.
 
Danger: http://en.wikipedia.org/wiki/X10_(industry_standard )
http://www.smarthomeusa.com/info/x10theory/x10theory/#theory

NoTime: I'm basically trying to build an electronic light switch of my own, but I need a DC power source in the light switch, so I'm not after X10 specifically, just the same way they tap their power.

Thanks for the replies :)
 
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Thanks for the links. The Wiki article isn't there, but the other one was about as comprehensive as anyone could want. I used to have the plans around somewhere for an intercom system that transmitted over the power lines, but that was just a straight signal over the system-neutral wire. This thing is in a whole 'nother realm. One question, though; it appears to be specifically tuned for 120VAC/60Hz. Do they make a European version as well?
 
danger, yeh...
its not specifically tuned... that's just an american website :)
 
Figures. :rolleyes:
 
juming said:
NoTime: I'm basically trying to build an electronic light switch of my own, but I need a DC power source in the light switch, so I'm not after X10 specifically, just the same way they tap their power.
I never got around to analysing how this was done.
But, you could pick up a cheap motion detector switch.
This would have all the power managment circuitry.
Probably cheaper than buying the components seperatly.
 

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