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Post by Boomzilla on Nov 16, 2016 19:46:59 GMT -5
I'd like to find a "12-volt trigger-actuated AC outlet." I could build my own with a relay, and if I can't find one, then I'll do that. But being the lazy schmo that I am, I'd prefer to just buy a ready-built. 3 amps of switching should be more than enough, and a single AC outlet would also be fine. Anybody know of one?
Thanks - Boom
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Post by jlafrenz on Nov 16, 2016 19:55:52 GMT -5
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Post by jlafrenz on Nov 16, 2016 20:01:48 GMT -5
You could also do something like this and tie it in with a universal remote if you have one. www.leviton.com/OA_HTML/ProductDetail.jsp?partnumber=DZPA1-1LW§ion=66154May have to do a little light reading on it to make sure it will power the device you want as I have a similar version from Lutron and it won't work with anything other than a lamp plugged in. It may be an amp restriction, but can't remember off the top of my head. |
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Post by Boomzilla on Nov 16, 2016 20:13:07 GMT -5
I think I want a bit more sophistication. Should a brief power dip occur while the switched amplifier was on, it would cycle very quickly - maybe not a good thing...
Perhaps with Arduino control and a UPS, I could put a time-delay on the power-down. Say five to 10 seconds after the trigger voltage was lost, the switched AC outlet would switch off - with a 60 second delay before it could re-energize regardless of how soon the trigger voltage came back.
Perhaps even a gradually rising-voltage "soft power on" to avoid rapid turn-on inrush current? The last one of these I built used an incandescent light bulb. While the amperage draw was high, the output-power was routed through the bulb filament, but after the amperage approached steady-state, the relay made, and bypassed the bulb. Worked like a charm! Of course, the problem these days would be finding an incandescent bulb of the right wattage...
I also note that the units you recommended all start at about $90 and go up from there? I would like to do it for half that price if possible...
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Post by garbulky on Nov 16, 2016 20:24:05 GMT -5
I think I want a bit more sophistication. Should a brief power dip occur while the switched amplifier was on, it would cycle very quickly - maybe not a good thing... Perhaps with Arduino control and a UPS, I could put a time-delay on the power-down. Say five to 10 seconds after the trigger voltage was lost, the switched AC outlet would switch off - with a 60 second delay before it could re-energize regardless of how soon the trigger voltage came back. Perhaps even a gradually rising-voltage "soft power on" to avoid rapid turn-on inrush current? The last one of these I built used an incandescent light bulb. While the amperage draw was high, the output-power was routed through the bulb filament, but after the amperage approached steady-state, the relay made, and bypassed the bulb. Worked like a charm! Of course, the problem these days would be finding an incandescent bulb of the right wattage... I also note that the units you recommended all start at about $90 and go up from there? I would like to do it for half that price if possible... I'm not entirely sure what you are looking for but Emotiva makes one. emotiva.com/products/accessories/et-3$35 I may be wrong but I believe it has a delay feature too. |
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Post by jlafrenz on Nov 16, 2016 20:50:48 GMT -5
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Post by Boomzilla on Nov 16, 2016 22:37:37 GMT -5
Thank you very much, but it isn't exactly what I need. I'm trying to use the preamp's trigger to turn on a power amp. But the power amp doesn't have a trigger input. So I need to be able to turn on & off the power (to the power amp) with the preamp's trigger output. The Emotiva ET-3 allows you to control more devices from a single trigger signal, but for it to work those other devices must already have a trigger input. I appreciate the suggestion, though. Boom |
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Post by Boomzilla on Nov 16, 2016 22:38:03 GMT -5
Yep - that's what I'm thinking too. Thanks. |
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Post by geebo on Nov 17, 2016 8:05:06 GMT -5
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Post by audiosyndrome on Nov 17, 2016 9:08:09 GMT -5
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KeithL
Administrator 
Posts: 10,273
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Post by KeithL on Nov 17, 2016 9:36:38 GMT -5
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Post by audiosyndrome on Nov 17, 2016 10:39:48 GMT -5
Looks interesting. Thinks for the link Keith.
Russ
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