TRX250R.ORG
General => Lounge => Topic started by: Bio86 on October 08, 2014, 09:34:51 AM
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Has anyone used a single phase rect/reg through the factory harness light switch without using a battery for DC lights?
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I am running led lights without any problem.
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Off AC or doing it with the rect/reg setup?
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Just off the taillight plug.
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use the full wave rectifier you will get twice the wattage as the 1/2 wave single diode rectifier, just do not ground your DC circuit
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That's what it is, it's a newer Ricky Stator one. Similar to Trail Techs. I bought some cheapo 4" led headlights just to try off AC, no go! haha my buddy has the same exact lights on his banshee off AC with no problems yet.
So if I wired that into the factory harness without a battery how would you wire it up? Use the two yellow feed wires from the rect/reg to the stator, one to float the ground, one solders at the factory yellow/white connector at the stator, then the red from the rect/reg then connects to that unsoldered yellow/white wire that goes up to the light switch? Then just omit the factory regulator? What do you do with the black ground off the rect/reg then? Can you ground it to the frame at that point since the stator is floated?
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well LED's are a Diode "light emitting diode" so if you have the polarity backwards to the light it will not work, try changing polarity
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(http://www.rutherford-robotics.com/BOOK/rectifier_full_wave.gif)
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I dont know the specs on you ricky stator regulator but if I was building a DC system I would run the factory regulator and add the full wave rectifier from radio shack that looks like this and wire it like the example above
(http://www.skycraftsurplus.com/images/products/detail/sk3873.jpg)
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Oh it worked until I rev'd it up, then they all went out and started flickering. I probably f'd them up, that was connected directly to the OEM headlight plug on low with AC. Just trying to figure out if my wiring sounds correct before I do it all and burn something up.
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That's pretty much exactly what I have to work with for wiring. 2 in AC, 2 out DC. Which wires on the factory harness do each of those connect to is where I'm getting all jacked up. I think my earlier post should work for connection points right?
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(http://trx250r.org/attachment.php?attachmentid=6486&d=1412204336)
you will use the yellow and green(ground) as your AC power, from the rectifier you will have a + and - keep those isolated from ground and run them to your light which also needs to be ungrounded
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Ok I got it. Thanks man. Keeping it all ungrounded made it clear, finally.
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I had my lights hooked to the headlight and it done the exact same thing. Go out when revved up. I was on my way to Waynoka so I had a small battery from a kfx and put it in my air box. Everybody else had theirs run off the taillight. I hooked my lights up yesterday to back to little sahara and ran them off the taillight and they work great.
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Weird, must have just enough resistance or something to work off the tails or the switch does something there. I'm going to try it with DC first, if that doesn't work as planned I'll just try the taillight way.
I appreciate the comments guys.
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That's what it is, it's a newer Ricky Stator one. Similar to Trail Techs. I bought some cheapo 4" led headlights just to try off AC, no go! haha my buddy has the same exact lights on his banshee off AC with no problems yet.
So if I wired that into the factory harness without a battery how would you wire it up? Use the two yellow feed wires from the rect/reg to the stator, one to float the ground, one solders at the factory yellow/white connector at the stator, then the red from the rect/reg then connects to that unsoldered yellow/white wire that goes up to the light switch? Then just omit the factory regulator? What do you do with the black ground off the rect/reg then? Can you ground it to the frame at that point since the stator is floated?
Got it going like that above with the ground off the rect/reg straight to the neg's on the lights. Works awesome actually, didn't even dim at idle. Had to remove the factory regulator since it tied the ground back to chassis.
Just in case anyone was curious, easy way to do a quick DC convo without a battery.
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For rectifiers, the easiest way to think of it is: No one wire on the regulator/rectifier can ever share a path with another wire. You can think of the chassis as one big wire, and you have to "float" the other three wires, however possible. Obviously, the "cheapest" way is to float the AC at the stator, as this requires the least amount of wire(two couple-feet long wires to the rectifier, one 10+feet long DC wire to the accessories.)
Also, diodes will fail to behave as expected at higher frequency AC, and it is even possible to ruin slow/cheap diodes/LEDs with high frequency AC.
(Long boring explanation below)
As you rev your engine, you are increasing the frequency of the AC generated. Diodes have a reverse recovery time, where they behave as nearly short circuits for a short period while voltage is presented in the reverse direction across them. This isn't an issue at lower frequencies, as the amount of time the diode spends in this reverse recovery time is much less than the amount of time it takes for the AC signal to swing deep into the reverse polarity stage. At high frequencies, the time the diode spends in recovery time could equal or be greater than the time the AC signal spends in reverse polarity. This means that the diode has to pass whatever forward current it was designed for, and now is also passing extra (possibly large) current in the reverse direction that all adds to the amount of heat the thing has to dissipate.
Luckily, in the case of a cheapo light bar, your LEDs are most likely in series with a high value resistor, which is probably why your bar still works after a cooling down period instead of being a bad paperweight.
Most likely, the Banshee's system is producing a lower frequency AC than the 250r. That, or your buddy got slightly better spec LEDs in his tail light.
TLDR: Rectify your AC with the right tools for the job!
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Good explanation on that Uns, never boring if you're learning something!
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Bio I tried this with my trail tech reg/rec and it turned on my 6"led without battery but when I was testing voltages and going over everything it was producing a very low voltage. Im wondering if its bad even though it was new. I then hooked up my home made rectifier with oem regulator and it produced a nice strong 13volts. But im still wondering whats up with the t.t because that stupid thing was 60 bucks..
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Very well could be just a junk rect/reg. Mines a Ricky Stator and has good voltage, I just assumed they sold the same stuff. Does the light quality vary though from low to high voltage?
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Yes very little. The light will flicker a small amount at idle. But I let my idle be low enough where the bike almost does. Im going to try a cap to stabilize the signal.
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Well she ran all weekend and night without any issues, those cheap lights aren't the brightest but worked well enough. One of my buddies with a banshee with the exact same lights burned one out Saturday night running AC. Running a small cap would probably be best but at least it works.
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Where were you at? I got there friday night and left sunday.
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South camp on that upper North side closest to the highway. Was with a brown ford ranger and a few jeeps. I never seen a 350 out there, couple good looking 250's and a red/white one that was pretty quick at the strip. Saturday was beautiful!
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We were on the far southend closest to the ranger station. I rode up there a couple of times and saw a couple of jeeps. Sunday was even better. The wind finally smoothed the sand out.
These are the two bikes I was on. (http://tapatalk.imageshack.com/v2/14/10/13/fd6b1211d3b284bd45b055fab444c9a3.jpg)(http://tapatalk.imageshack.com/v2/14/10/13/83afe83712267325cd8def90714a67e0.jpg)
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Dang, should have stayed I guess. We stayed out late Saturday so everyone was hurting a little (mainly headaches), just loaded up and hit the road early AM.
Slick lookin 3 wheelers! Got the death throttle on the black one lol And yah it got real rough, side by sides and buggies really rut it up now.
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I figure if your going to ride a trike might as well put a twisty on it. Thats all I run on mine. Keeps you on your toes