Can I swap the driver of my SkyRay King?

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viw9419
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Can I swap the driver of my SkyRay King?

As the subject really, I have a SkyRay King on order but would prefer 3 modes, are there any drivers that I can buy/modify/build to change the modes?

I have seen some that require the cells in series, maybe 3x single cell drivers would work. I am not too fussed about the electronic switch, I can modify/make that work with any driver.

Edited by: viw9419 on 10/19/2012 - 02:25
sturr
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viw9419 wrote:
I can modify/make that work with any driver.

How?

Thorfire TS07, DQG AA, Brass Beauty, Astrolux S41

viw9419
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The physical switch looks to be a standard momentary switch as used in all types of consumer electronics, depending on the driver just add a latching state.

crystalcai
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To change mode you have to change the Circuit Board first ,such as this one .And as to choose the circuit board ,you have to know the diameter of your flashlight .Can you tell me your flashlight model?maybe I can help you

Keep going ,next stop—>LightsCastle
Web: www.lightscastle.com
Email: service@lightscastle.com or marketing@lightscastle.com
Official Skype:lightscastle

viw9419
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As per the title, SkyRay King

Input max 4.3V 12Ah
Output 7.5-12Ah
Modes required, 100%
Modes desired, 5%, 25%, 75%.

I would ideally like:
Direct Drive dropping to 9Ah after a short time, then 6Ah, 3Ah, 1.5Ah then moonlight mode with almost nothing.

A guy can dream right?

How big would the board need to be? 50mm?

crystalcai
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viw9419 wrote:
As per the title, SkyRay King

Input max 4.3V 12Ah
Output 7.5-12Ah
Modes required, 100%
Modes desired, 5%, 25%, 75%.

I would ideally like:
Direct Drive dropping to 9Ah after a short time, then 6Ah, 3Ah, 1.5Ah then moonlight mode with almost nothing.

A guy can dream right?

How big would the board need to be? 50mm?


Would you please post a picture of your flashlight ,so that I can decide the diameter of the board

Keep going ,next stop—>LightsCastle
Web: www.lightscastle.com
Email: service@lightscastle.com or marketing@lightscastle.com
Official Skype:lightscastle

viw9419
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Google Sky Ray King.
I do not have the light.

cainn
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crystalcai wrote:
viw9419 wrote:
As per the title, SkyRay King

Input max 4.3V 12Ah
Output 7.5-12Ah
Modes required, 100%
Modes desired, 5%, 25%, 75%.

I would ideally like:
Direct Drive dropping to 9Ah after a short time, then 6Ah, 3Ah, 1.5Ah then moonlight mode with almost nothing.

A guy can dream right?

How big would the board need to be? 50mm?


Would you please post a picture of your flashlight ,so that I can decide the diameter of the board

The Sky Ray King is essentially the same light that you sell under a different name here: http://www.lightscastle.com/product/fandyfire-uv-s5-cree-xm-l-t6-3-mode-...

DrJones
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I’m currently working on a King driver mod, unfortunately I don’t have much spare time currently… I’ll post results when I’m done (if I succeed, that is), may take some weeks.

Rockspider
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viw9419 wrote:
As per the title, SkyRay King Input max 4.3V 12Ah Output 7.5-12Ah Modes required, 100% Modes desired, 5%, 25%, 75%. I would ideally like: Direct Drive dropping to 9Ah after a short time, then 6Ah, 3Ah, 1.5Ah then moonlight mode with almost nothing. A guy can dream right? How big would the board need to be? 50mm?

 

Maybe you will want to rethink about the spacing values for the modes: output is not linear with current, with your amperages I feel you will end up with 4 very bright modes, very close to eachother, and no real low.

For example, a light that I like a lot for the spacing between modes and good low, is the Lumapower Dmini-VX, and it has 2,5A - 0,50A - 0,12A - 0,02A  Wink

Sirius9
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DrJones wrote:
I’m currently working on a King driver mod, unfortunately I don’t have much spare time currently… I’ll post results when I’m done (if I succeed, that is), may take some weeks.

Weeks!!! You have 7 days J)

 

viw9419
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You may very well be right, I haven’t done a lot of research into it.

kramer5150
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It wouldn’t be a straight up driver swap. The King uses an e-switch that doesn’t rely on power interrupt to turn off or mode flip. So the mode control EPROM of the circuit never really completely powers off. AFIAK no one makes a drop-in replacement driver that uses an e-switch.

Likewise, modding it to 3S or 4S 18650 would require a lot of DIY fabrication too, at both the + and – end. You would have to effectively isolate the cells from the – tailcap end and from the + head, and in place of the “P” connection wire everything up for series cells. Definitely an advanced mod, for a builder with some serious DIY fabrication skills.

viw9419
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Add a small latching circuit, I assume there is voltage at the switch. Shouldn’t be too hard to do.

kramer5150
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It might be easier to re-program the EPROM. Its been done before on other lights, both on CPF and BLF. No one has attempted it on a SR King though.

viw9419
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A latching circuit looks something like this

http://m.youtube.com/#/watch?v=Foc9R0dC2iI&desktop_uri=%2Fwatch%3Fv%3DFo...

I have EEPROM readers, when mine comes I will give it a go.

kramer5150
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viw9419 wrote:
A latching circuit looks something like this

http://m.youtube.com/#/watch?v=Foc9R0dC2iI&desktop_uri=%2Fwatch%3Fv%3DFo...

I have EEPROM readers, when mine comes I will give it a go.

Cool… keep us updated on how that goes. You should also kill the low PWM while you are at it. IIRC its in the vicinity of ~100-130 Hz which is way too low for almost everyone.

viw9419
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If anyone has a picture of the EEPROM in the driver board it will be a start.

scaru
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viw, see this thread for some nice high res pictures of it. 

http://budgetlightforum.com/node/13361#comment-234223

Sirius9
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viw9419 wrote:
A latching circuit looks something like this

http://m.youtube.com/#/watch?v=Foc9R0dC2iI&desktop_uri=%2Fwatch%3Fv%3DFo...

I have EEPROM readers, when mine comes I will give it a go.


Did you post this from m.phone or tablet?

I am waiting until someone finally find the way to change this stupid modes (hi-lo-strobe) and then I’ll get the King :- )
Hope to insert DrJones’s ramping sw :- )

 

xed888
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Posted it for you.

scaru
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Sirius9 wrote:
viw9419 wrote:
A latching circuit looks something like this http://m.youtube.com/#/watch?v=Foc9R0dC2iI&desktop_uri=%2Fwatch%3Fv%3DFo... I have EEPROM readers, when mine comes I will give it a go.
Did you post this from m.phone or tablet? !http://www.dodaj.rs/f/3K/Xp/E4Oei5a/scr.jpg! I am waiting until someone finally find the way to change this stupid modes (hi-lo-strobe) and then I'll get the King :- ) Hope to insert DrJones's ramping sw :- )

Here the correct URL is. 

http://www.youtube.com/watch?v=Foc9R0dC2iI&desktop_uri=%2Fwatch%3Fv%3DFoc9R0dC2iI&gl=GB

DrJones
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It’s not just an EEPROM, but a micro controller. I have not yet read of someone being able to reprogram these unmarked Chinese ones. Seems to have a PIC pin layout.

There might be space enough for three NANJG105C, one master and two slaves. A master with a firmware suitable for electronic switches (Tido made one for PIC, I made one for the NANJG/Atmel) would be a possible solution.

texaspyro
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DrJones wrote:
I’m currently working on a King driver mod, unfortunately I don’t have much spare time currently… I’ll post results when I’m done (if I succeed, that is), may take some weeks.

While you are hacking around in there do something about the standby current. It is around 100-1000 times higher than it could/should be…

kramer5150
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texaspyro wrote:
DrJones wrote:
I’m currently working on a King driver mod, unfortunately I don’t have much spare time currently… I’ll post results when I’m done (if I succeed, that is), may take some weeks.

While you are hacking around in there do something about the standby current. It is around 100-1000 times higher than it could/should be…

Curious what is the parasitic drain on this light?
How long does it take to drain 4-18650 from a full ~4.15V charge down to (say) less than ~4V

Its not a deal breaker in my book though since power can be 100% cut off by unscrewing the battery tube a ~half turn… I’m just curious more than anything.

thanks

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crystalcai wrote:
To change mode you have to change the Circuit Board first ,such as "this one":http://www.lightscastle.com/product/530016 .And as to choose the circuit board ,you have to know the diameter of your flashlight .Can you tell me your flashlight model?maybe I can help you

Batteries in SRK are in parallel...total volts is 1S, so 4.2vdc is max voltage you will get