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  1. chopnhack

    Capacitive Reactance Circuit

    The race is on! I'm curious to find out how fast the post will be to our respective locations! LOL As for what's inside, based on the height of the box, I am almost sure that you are correct. I was going to open it as soon as it came and post a pic because I seriously doubted finding a switcher...
  2. chopnhack

    Capacitive Reactance Circuit

    Gave it a shot ;) The module that Fish recommended states 3-12V, but doesn't say if its adjustable. How do you think the module accommodates the range? http://www.ebay.com/itm/151313185966?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
  3. chopnhack

    Capacitive Reactance Circuit

    Boom! oops, I guess fish was right, these are more dangerous than they first seem!!
  4. chopnhack

    Capacitive Reactance Circuit

    I appreciate the input, and to some extent I believe you are correct. There are more safety precautions that one must concern themselves with when building/servicing said circuit. Outright dangerous, not necessarily. It seems that every wired smoke detector I have ever used was cap-fed. All were...
  5. chopnhack

    Capacitive Reactance Circuit

    Not sure, certainly out of my field of expertise :-) Can we approach this differently and perhaps use a PTC?
  6. chopnhack

    Capacitive Reactance Circuit

    Thanks for the efforts Kris :) I will play with these values for some time and see what I can come up with. I like the SMT bridge idea! Ok, so playing with the schematic a little, I find that if you place a small capacitor across the LED (200μF 6.3v) the ripple is smoothed out to within 0.45mA...
  7. chopnhack

    Capacitive Reactance Circuit

    Brilliant! That is exactly what was going on, thanks for clearing that up. I will try to remember that when I draw up a schematic!! Thanks again :-)
  8. chopnhack

    Capacitive Reactance Circuit

    Not sure, I took out the ESR value and then re-ran the sim. R1 current and then probed across R1 for potential. Still out of synch... Strange - I even tried building a new one from scratch and got the same results. Ripple would be more precise. 60 peaks of current per second fed to the LED...
  9. chopnhack

    Capacitive Reactance Circuit

    Wow, did not know that LT did that calculation - very smart program, thanks. I don't know why my sim. doesn't look like yours. I will rebuild it and try again - Edit - Did and the wave forms are 90 degrees out of synch. I also notice that this is far from a constant current drive, there is a...
  10. chopnhack

    Rain Sensor Status

    And in other news: Success! Thank you ever so much Kris, Harald, Steve and Dave!! A wired, wireless Hunter Rain Sensor :D :p LOL
  11. chopnhack

    Rain Sensor Status

    I am a little further in my thoughts on AC - phase and neutral are 180 deg. out of synch with neutral carrying the opposite of phase (and vice versa). Then technically speaking if the above is true, shouldn't one get shocked if they completed the circuit between neutral and ground? It certainly...
  12. chopnhack

    Save money?

    Understandable, I am of the same mind on that, but there is strength in redundancy. There are providers that monitor for about $10/month. Far more reasonable than ADT, etc. first search that came up was www.alarmrelay.com. It will pay for itself in the event that you miss a text ;-)
  13. chopnhack

    Save money?

    Have you ever looked at the offerings from HAI? I think they got bought out by Leviton, but they have systems that can do what you are looking for. http://homeauto.com/
  14. chopnhack

    Rain Sensor Status

    I understand your explanation and perhaps if I had an o-scope I could experiment to make it clearer. From observation with DMM, in the US, Neutral is the return for Hot. Neutral to Ground only shows zero potential on the DMM. That is why I thought all the cycling between positive and negative...
  15. chopnhack

    Capacitive Reactance Circuit

    ESR of 5.6k Ω and R1 was 100 when you sent the file over.
  16. chopnhack

    Rain Sensor Status

    Still thick, LOL - haven't wrapped my head around it yet. I am so used to having a reference from residential wiring where neutral is just the return path and the "hot" is the phase side. You are saying that if I connected the neutral to D1's anode the circuit would still work? I produced an...
  17. chopnhack

    Capacitive Reactance Circuit

    The first thing I notice that is different is that I entered a value under ESR for cap1 whereas your model doesn't show that. I think that may have something to do with it, no?
  18. chopnhack

    Capacitive Reactance Circuit

    Heyhey! What do you know, I am getting closer to being able to design a simple circuit ;-) Would you be able to post your file for the circuit in LTSpice. I want to see what is different between my copy and yours. Thanks!
  19. chopnhack

    Capacitive Reactance Circuit

    Well I couldn't have simply stated that I wanted to drive 1 LED off of mains as the title and hoped to have survived! :D LOL It's trite, but I have a device that takes a red colored small based bulb which I am having a hard time locating. I thought instead, with some of my new knowledge, why...
  20. chopnhack

    Rain Sensor Status

    Thanks mate for the explanation... I am thick. I keep looking at the ground plane and thinking that it become more positive for 1/2 the cycles... I need to leave this be for tonight and perhaps it will sink in tomorrow :confused::rolleyes::oops:;)
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