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TOPIC: SF 12W+ LED w/ Spark2 single colour
SF 12W+ LED w/ Spark2 single colour 1 month 2 days ago #56761
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Hey all! So I've read a couple of threads about this topic, but it still really confuses me.
I have an ASP kit on the way, and it'll be arriving with an SF 12W+ Green LED. I also have a Spark2 (as I had read that the NBv3 wasn't quite up the challenge of running a quad 12w) and I want to wire this without using FoC, no aux switch, and with a recharge port. Now here's the part where I get confused! I've seen people say that you can run the negative lead from all four dies to the first channel (C1 in the Spark2 diagram), but you risk running the setup a little hot. So I've seen people say that you can instead run two dies to the first channel and the second two to the second channel (C1 and C2 respectively). So my question is this: do you then run both channels to the first pad of the TruDrive? The second is the one designated for FoC, correct? Any answer or extra pieces of info someone can give me would fantastic. Thanks! |
SF 12W+ LED w/ Spark2 single colour 1 month 2 days ago #56797
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The LED connect pads control the signals given to the Tru-Drive, so if you connect LED connect pad 1 on the board to LED connect pads 1 and 2 on the Tru-Drive, your color pads C1 and C2 will give identical signals, that is, you need to wire the LED to C1 and C2 both, or if you wire two different LEDs to C1 and C2, they will do the same thing.
The thing that controls FoC on the Spark 2 is the LED connect pad 2 on the board. So, if you wanted to use two dies for your main blade and a third for FoC, and you want to split the main dies over two channels, you would wire: • LED Connect Pad 1 on the board to LED Connect Pads 1 and 2 on the Tru-Drive. •LED Connect Pad 2 on the board to LED Connect Pad 3 on the Tru-Drive. •C1 and C2 to your main LED dies. C3 to your FoC die. I hope this helps a little. I'm not sure if I've been clear enough, but if you have any other questions, ask away! |
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The above post may be subject to editing. A lot of editing.
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SF 12W+ LED w/ Spark2 single colour 1 month 2 days ago #56833
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Spark 2 doesn't have a dedicated FoC channel. Think of it as a two-channel color mixing board, not a Main + FoC board. Main color can be C1, C2, both mixed together, or none at all. Same for FoC.
In a standard setup, C1 is one color. C2 is another color. C3 and C4 go unused. No problem setting both C1 and C2 to Green. To keep things running their coolest, split the 12W+ to two LEDs per channel, since the mosfets on the tru-drive tend to warm up above 1A. They *can* take up to 4 die per channel, but it's best practice to split things up if you have the space |
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The following user(s) said Thank You: MrBond, HotRod
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SF 12W+ LED w/ Spark2 single colour 1 month 2 days ago #56848
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Kouri wrote:
Spark 2 doesn't have a dedicated FoC channel. Think of it as a two-channel color mixing board, not a Main + FoC board. Main color can be C1, C2, both mixed together, or none at all. Same for FoC.
In a standard setup, C1 is one color. C2 is another color. C3 and C4 go unused. No problem setting both C1 and C2 to Green. To keep things running their coolest, split the 12W+ to two LEDs per channel, since the mosfets on the tru-drive tend to warm up above 1A. They *can* take up to 4 die per channel, but it's best practice to split things up if you have the space So if I understand you correctly, FoC on the Spark 2 is simply a "mix" setting activated in a clash that can be different than the main color mix setting (but wouldn't necessarily have to be). Hence if all dies are the same (let's say a quad RRRR), you can still hook them up split between C1 and C2, have your main setting be 90% and FoC 100% or when having 2 colors, have let's say BB at 50%,YY at 80% and for FoC, BB at 80% and YY at 90% or any combination like that. For a typical Foc, you could put 3 color dies on C1 at 100% and one white die on C2 at 0% that goes 100% when Foc is activated. That would make your standard color light 9w and 12w when FoC. Did I get that right ? |
SF 12W+ LED w/ Spark2 single colour 1 month 2 days ago #56866
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MrBond wrote:
So if I understand you correctly, FoC on the Spark 2 is simply a "mix" setting activated in a clash that can be different than the main color mix setting (but wouldn't necessarily have to be). Hence if all dies are the same (let's say a quad RRRR), you can still hook them up split between C1 and C2, have your main setting be 90% and FoC 100% or when having 2 colors, have let's say BB at 50%,YY at 80% and for FoC, BB at 80% and YY at 90% or any combination like that. For a typical Foc, you could put 3 color dies on C1 at 100% and one white die on C2 at 0% that goes 100% when Foc is activated. That would make your standard color light 9w and 12w when FoC. Did I get that right ?
That's the way I understand it. Sorry for the confusion, I was trying to say that if one wanted FoC, they'd have to wire it up that way, but the way I wrote it assumed that they were using FoC on Channel 2, which of course is not always the case, nor would it be in the scenario they are describing. Whoops. But Kouri, by splitting the channels you do mean wire LED connect 1 on the board to LED connects 1 and 2 on the Tru-Drive, and then wire your LED to both C1 and C2? Or do you mean to use LED connect pads 1 and 2 on the board and on the Tru-Drive for the main LED color(s) wired to C1 and C2? |
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The above post may be subject to editing. A lot of editing.
The following user(s) said Thank You: HotRod
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SF 12W+ LED w/ Spark2 single colour 1 month 2 days ago #56876
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I'm assuming most beginners will follow the X-4 (Original SF 12W) wiring diagram included in the Spark manual:
In that sense, I figured I'd keep things simple and not change things up on them. That said, there might be merit in wiring the board up with Board 1 to TruDrive1&2 while leaving Board 2 available for TruDrive 3&4 - the manual even shows a schematic in this manner for Crossguard wiring. Tru Drive mosfet heat would still be split between two sinks, but the end result is one slider. It's a nice idea, just not standard is all. |
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The following user(s) said Thank You: MrBond, HotRod
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