modded two original RRT-01 to sw40 9080, w kaidomain reflector and centering ring, xp star, and lubricated control ring w Nyogel 767a for very firm resistance, then fine tuned with a bit of nano oil to get the right “feel”.
Keep on experimenting Agro. Nothing beats a physical design that prevents unwanted activation, but a very convenient software solution is the next best thing.
In return for the good pics ( ) can someone point to how to remove memory on this driver, maybe as simple as a pencil trick on one of the caps? (there are too many caps on this driver :weary: ).
Can’t help with the memory removal, but have you looked at the other linear driver from Simon? It has an interesting UI that allows brightness configuration of each mode, and does not have memory.
Regarding that regulation chip, I’m curious how it works. My understanding is that the FET is dissipating the heat to regulate the current. Is that regulator chip sensing the current and driving the FET gate?
I bought 5 of these drivers with memory, I liked the simple and clear operation, while the other type came with very confusing information on the Convoy site. In the meantime that one may have proven to be better for me, but I still have 4 drivers to go… :person_facepalming:
I agree…and at the same time I don’t.
The only mechanical lockout that worked for me with complete reliability was clicky switches. Even twisties would turn on by themselves from time to time.
Clickies work reliably because of the long switch travel - and that long travel makes them bulky.
For most of my use cases the bulk is a larger issue than a more involved startup procedure.
I love Nitecore TINI host (but hate UI). It’s extremely potent for the size. The buttons are easy to find and operate single-handedly. There’s no any physical protection - and with the right UI such protection wouldn’t be needed.
The real game changer for me is the momentary mode while locked out. Many times it enables me to avoid the involved startup procedure.
That, coupled with a number of nice tweaks (memory reset, aux LEDs signalling “hey I’m unlocked”) makes me want to explore avoiding physical lock out.
So far I used to have lights in 3 states:
physically locked out
off
on
off would really be only a temporary state and I would most often shut the light down by cutting the power.
I’d like to experiment with soft lockout because:
it enables aux LEDs working as locator light (and looking cool at the same time)
it can be more reliable in most hosts
it enables more host designs (i.e. TINI- or Aurora- like)
it gives more possibilities for state change. Physical can do only locked-out -> (one whatever mode, typically off). Soft can have direct shortcuts to multiple modes
BTW I experimented with entering the locked out state by the means of cutting the power; quickly twisting the tube back and forth can be less involved than a 3-click. It works reliably when the main LEDs are on, even at moonlight, but not at all with AUX, even when they are bright. Actually on -> locked-out transition is the one I care more about and I’m happy to see it working.
Not really mod. Today I found 3 pcbs for TA fet+1 in my box with junk and decided to solder them. Actually don’t know what to use them for ¯\/¯ Suggestions?
Wow, those where darn good pics, thanks! Sorry I can’t help you with the memory issue.
It looks like it has two Alpha & Omega AON7520 “AlphaMOS” mosfets. I might be wrong on the precise model but that symbol on them is definitely Alpha & Omega.
It would be nice to know what that SVA11 / SVAII thingy is.
At the risk of exposing my lack of electronics knowledge: could those all be FETS? In which case, together with the two big ones, for each power setting a separate channel with FET is used (so no PWM) ?