Review: Fancy Flashlights Hi Current 17mm 1xAA Two Group Torch Circuit Driver

garrybunk · December 11, 2012, 4:40pm

Dimbo The Blinky:

If these don't have mode memory I give up.

[snip]

I knew they were single mode and said it tongue in cheek. I seriously am in the poo if the memory on them doesn't work. Cheers.

Light humor! Jeeze, I can be just a tad slow on the uptake :party:

Yes, but it has Mode Memory! It remembers to stay ON… (In “a far-distant thread”:Trustfire F20 Driver Help Needed! (Simple Emitter Swap Gone Bad!)

garrybunk:

"Next Mode Memory" is really just a "no memory" driver which is not reset to the first mode quick enough (i.e. it stores the last mode used for too long). These are usually corrected with a resistor mod to shorten that reset time. It's not intentional programming.

(Feel free to correct me if I'm wrong.)

-Garry

I moved this here to ask a question on this topic. Has anyone managed to Reverse-Engineer one of these to discover which is ‘that’ Resistor? Wouldn’t it be salvageable if the reset were eliminated? Or has the IC been identified (I +am+ looking!!)? It seems the datasheets provide the schematics for a lot of these “proprietary” circuits… Except for the IC programming (e.g. hiding blinky modes)… I have that skill, so I’d LOVE to have a go at this one.

Here's a link to said resistor mod on the Jacob A60 to remove its "next mode memory" issue. This has been done on quite a few lights. I'm not sure which post has the best details explaining it. viffer750 is the king of these mods!

-Garry