I got mine and checked it.
Unfortunately this does not work.
The flashlight starts flashing when the voltage drops below 2.7V
edit: power off after 2 min
Has anyone compared the drivers for sale with the drivers in the flashlights?
I’d like to know which ones are used. They have three drivers for sale, identified with a flashlight model number:
On the Fonarevka.ru, they tell me that it does not turn off immediately. It is necessary to wait some time, after it starts to flash. But I can check it only on Monday.
At mine - usual direct drive. Without an inductor. From the laboratory power supply at 4.2V, the current on the LED is 4.6A (Hi mode)
Wondering if a clamp meter on a loop of negative lead from the mcpcb would clearly show the emitter amperage as a cell loses power? That would easily clear up direct drive or regulated questions.
XXX measured 3.2A at the tail, which is not direct drive even if only limited by the R091 sense resistor. Higher amps would be easily obtained through a change in the resistor.
Tracy confirmed, above, that this is not intended to be a constant current driver. So it’s all probably a moot point… just wondering why we get a 3.20A reading on a cell and a 4.6A reading from a power supply?
I think I actually like the SF36 better than the VG10 series due to the knurling…
I recently acquired a power supply, for a specific purpose. After this purpose I will be able to use this lab style power supply on my bench, but since I know virtually nothing about these I find myself at a loss as to why I’d use it over just using a cell like I’ve always done in the past. This is why I ask. To what point is the power supply used? The readings one gets are not valid as we use a flashlight with cells, which sag and lose power.
I needed a supply for an 18V emitter that would use up to 1.2A current. So I chose a 30V 5A unit. It’s working great for this project, so far, remains to be seen what I do with it afterwards…. a lot to learn still.