Re: NJG-18, 3 mode driver for 445nm with single cell
Thank you for the explanation. qumefox.
My specialty is way from the electronics. Sorry. 3zuli.
My 2 of 445nm were connected to NJG-18 with no additional capacitor except heasink for 5-pin chip.
After 1st build was finished with some courage, I tuned on that with praying.
The 2nd build was very easy. No need of courage nor hesitation.
So I set the pot after the building, with LPM.
Both are still working good.
My NJG-18's were from KD. 3-mode both.
There is mode-variation in NJG-18 because PWM IC programming is slightly different between the batches according to the time of their production. (heard from CPF)
And one can remove "the modes" then single mode as posted previously.
Mismatch of power-current of the low mode is also due to PWM.
The current is increasing as turning the pot counter-clockwise in mine.
Good luck! 3zuli.
SHIN
edit) My pot was set at 135 degree counter-clockwise from factory-setting.
At that position, the pot was somewhat sensitive.
And one more thing, because this driver has "modes", you should test the current "several" times as when you use multimode-flashlight.
I wish your driver has only 3-modes.