Ok, so even though I have had a multimode flashlight in the past and hated it, I decided to try again…I still hate it.
So I began researching on if I can turn a multimode into a single mode and found this information, the last post is the most informative Possible Removal of Medium> Low> Strobe> SOS Modes, Only High From XM-L T6 Chip? Then I found the manufacturers numbers on the 8 pin chip (thank God my eyes are still semi OK, the writing was almost invisible) and found this technical data Intelligent Power and Sensing Technologies | onsemi
Can someone tell me which pin I would have to jump to the positive side of the LED with a resistor to make this a single mode flashlight. I have taken readings on the 8 pins with the flash light on in all 5 modes, but that is a lot of data to post. However, I can tell you that pins 1, 2, & 3 appear to have battery voltage whenever the flashlight is powered on. Hopefully someone hear has the required knowledge to help me out. Thanks in advance for your time.
If you got stuck with a cheap next-mode memory driver (actually, anti-memory, it refuses to remember by design) I can understand why you hate it. There are several different methods of handling the memory - sets after a certain period after turned on, some set a certain period after being turned off. There are drivers with no memory at all - meaning, it always turns on in the same mode, but if you wish you can then switch to a different one.
We'll need to know the exact driver you have there to say for sure what needs to be done to disable it.
It has no memory or next mode memory, if I turn it off it will turn on in the next ordered function. By driver, I m assuming that you mean the entire ckt board that the 8 pin ic is soldered into?
Just for my own educational purposes, is this because the Gate Threshold Voltage is -1 to -3 volts meaning that you can solder the gate pin to the negative side of the circuit to give it a negative voltage (thus always activating the mosfet whenever negative is connected)?
So, like I said, what you hate is actually cheap drivers with poorly implemented modes/anti-memory. I'm guessing if you're buying lights from Amazon you've not used one that did it properly.
A good driver will remember the last mode you used, no matter if the light is turned off for 3 seconds or 3 days. If you switch it to 'high', leave it on for 1-2 seconds, and turn it off, the next time you turn it on it will come on in 'high' mode. If you switch it to 'low' and turn it off, it will be in 'low' next time you turn it on.
A good driver with NO memory will always turn on in whatever mode it's programmed for - most no memory drivers start every single time in 'high', as long as the light is off for 1-2 seconds (so the driver can distinguish between a short press that's meant to change modes and a long press that's meant to turn the light off).
looking at the light, I’d be inclined to find a way to get a 7 or 8 7135 nanjg driver in there, you sound like you know what your doing so a driver swap is easily in reach of your skill set.
I’m going to guess your current driver is 20mm. That being the case, you want one of these
you will have to set up the driver (solder the stars that correspond with the modes and if you want memory or not) then you push the driver spring into the contact board, solder that, connect the ground rings on the two boards (you can use jumper pins, the holes line up or use a little wire to connect both rings) then fit the assembly in your light.
Modes are usefull, as long as they are implemented properly, you’ve just found the “joy” of next mode memory, as comfychair says, with either no memory or proper memory its a much better prospect.
Soldering in a 0.5W 220Ohm resistor between pin 4 and the ground worked like a champ. It cost $1.69 for a pack of 5 resistors, and considering I have a few more lights I am going to do this to, the cost was essentially nothing.
This forum ROCKS!!
Many thanks to everybody!!