Sold/Expired FS: Microprocessor controlled drivers

[RV7]

Re: Microprocessor controlled 4-mode driver boards

Ken, that's quite encouraging. Thanks!

Now I almost feel obligated

 

[davenlei]

Re: Microprocessor controlled 4-mode driver boards

Rv7,

Ok, so the 3.7 version will run at 2.5-4.2v. If I apply a little too much voltage (4.5-4.7v) will it just go out of regulation until it reaches 4.2v and then pop back into regulation? Or will it just fry the board?
Also, will you offer different outputs of the board like a 1.1a output version?

 

[Krit]

Re: Microprocessor controlled 4-mode driver boards

It's very interesting. I like start from low to high mode. Can we adjust it's brightness in each stage? If price is resonable, please put me in line for some of AA type.

 

[RV7]

Re: Microprocessor controlled 4-mode driver boards

Rv7,

Ok, so the 3.7 version will run at 2.5-4.2v. If I apply a little too much voltage (4.5-4.7v) will it just go out of regulation until it reaches 4.2v and then pop back into regulation? Or will it just fry the board?
Also, will you offer different outputs of the board like a 1.1a output version?

I tried 8V and it got warm, which is an indication of poor efficiency, but didn't fry. The output is still very well regulated. It's recommended to use the board with a single 3.7 batt, when it's the most efficient.

The driver, thus max output, can't be configured. Only the PWM can be programmed.

 

[PhotonAddict]

Re: Microprocessor controlled 4-mode driver boards

My vote would be for either "high, med, low" or "med, low, high" with low at 10% or less (preferably ~5%). I also tend to prefer a default mode so that I know what level it will be when I turn it on instead of being surprised because I forgot the last level it was at. Ideally the default would be either high or med - if I need low I usually have the time to click a few more times to get it (ie., i usually don't need low for an emergency situation).

It gets complicated when you try to please people doesn't it
Either way, I'm very interested in the final product, and if you decide to do a 2AA version I'd probably be in for one of those as well, especially if it will fit in a minimag or fenix.

 

[RV7]

Re: Microprocessor controlled 4-mode driver boards

repost.

 

[RV7]

Re: Microprocessor controlled 4-mode driver boards

Thanks mods for moving this thread to where it should be! I should have realized it earlier. My apologies.

 

[2xTrinity]

Re: Microprocessor controlled 4-mode driver boards

I'd be interested in either a 3.7V version of this driver. I'd love to have a pocketable flashlight that ran on a single 18500 LiIon -- essentially the same size as a 1xAA flashlight (only slightly thicker) but with a much higher capacity.

 

[flex76italy]

Re: Microprocessor controlled 4-mode driver boards

Hi, interested in li-ion version without strobe.

Thanks.

 

[nine]

Re: Microprocessor controlled 4-mode driver boards

Second if protected batteries are used and when the low voltage protection kicks in, the flashlight will die suddenly, leaving you in the darkness unprepared. This can be disastrous when you're exploring a cave or haunted house So I'm thinking the first driver is more practical.

Exactly
I'll take 5 of the AA 3% - 20% - 60% - 100% (no strobe)

 

[kenster]

Re: Microprocessor controlled 4-mode driver boards

Ken, that's quite encouraging. Thanks!

Now I almost feel obligated

If you need someone to try out some drivers, I will buy whatever you have! :thumbsup:

Ken

 

[dom]

Re: Microprocessor controlled 4-mode driver boards

It should work with any switch.

Hi RV7
Sorry -i really wanted to know if it needed a latching switch to stay on.I'm still a learner as to how things work.
There was some discussions i was following where you needed some extra circuitry to use a momentary switch.
Thanks
Dom

 

[RV7]

Re: Microprocessor controlled 4-mode driver boards

Hi RV7
Sorry -i really wanted to know if it needed a latching switch to stay on.I'm still a learner as to how things work.
There was some discussions i was following where you needed some extra circuitry to use a momentary switch.
Thanks
Dom

Hi Dom,

Now I get it. I guess you're talking about the kind of circuit that's ALWAYS on and the momentary switch doesn't control power directly. Instead it only sends a signal to the circuit. Unfortunately my board is not designed to work that way.

 

[bombelman]

Re: Microprocessor controlled 4-mode driver boards

REally looking forward the end-result.

However, you should know that current boards are 0.55" and
most, if not all Light Engine builds for Aleph and a few custom Surefire
use a "can" which can only house a 0.55" board...

(17mm can still be used but would require a custom assembly...)

 

[RV7]

Re: Microprocessor controlled 4-mode driver boards

I've decided to use a new higher performance Li-Ion driver. It's extremely effecient, has a very flat output while at the end still offering a long gradual declining period. I was surprised last night by how bright a Cree is even at 6mA! You can run the light for hours at that level without over discharging the battery.

Edit: Details of the driver can be found in the first post. It costs a little more.

 

[Meduza]

Re: Microprocessor controlled 4-mode driver boards

I am intrested in a few of the AA 3% - 20% - 60% - 100% (no strobe) boards.

3-5pcs i think

 

[BayMoe]

Re: Microprocessor controlled 4-mode driver boards

Put me on the list for 2 of the boards for li-on use. One non-adjustable and one that is variable with resistor.

 

[Artisan Bill]

Re: Microprocessor controlled 4-mode driver boards

Hi RV7,

I have been looking for a 1AA board with variable output for quite some time. I congratulate you for making such a driver.

I would be in for 3 to 5 AA and 3.7V boards with mode A. I would most likely be interested in the 18x7mm 3.7V boards.

Sounds like this will be a fantastic product

Regards, Artisan Bill

 

[NetKidz]

Re: Microprocessor controlled 4-mode driver boards

I'm in for three 1AA baord (2 with strobe, 1 without) and four 18mm 3.7V Li-Ion board (2 with strobe and 2 without).

Thanks.

 

[H22A]

Re: Microprocessor controlled 4-mode driver boards

I'm interested in 5 x 1AA 3% - 20% - 60% - 100% (no strobe). Thanks.