Can this driver be converted in single mode?
- Thread starter kosPap
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uk_caver
Flashlight Enthusiast
Likely, the 8-pin chip (12F629) is driving something via PWM to get the different power levels.
If you could get the driver running in a strobe mode, it might be possible to probe the pins of the chip to see which one is the output, and then either trace that through to whatever it's driving (if it's a FET, you could just short-circuit it), or lift/cut the driving pin and work out whether the thing it was driving needs to be tied high or low to get the driver working.
If you could get the driver running in a strobe mode, it might be possible to probe the pins of the chip to see which one is the output, and then either trace that through to whatever it's driving (if it's a FET, you could just short-circuit it), or lift/cut the driving pin and work out whether the thing it was driving needs to be tied high or low to get the driver working.
kosPap
Flashlight Enthusiast
thanks for the input man...
but can only get thehorst phrase of it! Do you mean work my way by elliminating a pin at the time till I get the wished for mode???
but can only get thehorst phrase of it! Do you mean work my way by elliminating a pin at the time till I get the wished for mode???
uk_caver
Flashlight Enthusiast
If you can find out how the PIC12F629 is controlling the power, that gives the chance of bypassing the power control.
I'd guess that the 12F629 is probably driving a FET as a switch, and if that is the case, you could just short the FET out.
Two ways of working out how the circuit works is either to trace the tracks on the board, or to look at the circuit when it is running.
If you had the circuit running in one of the strobe modes, then one of the PIC pins will probably be slowly switching between high and low, and you might be able to work out which pin by using a multimeter.
I'd guess that the 12F629 is probably driving a FET as a switch, and if that is the case, you could just short the FET out.
Two ways of working out how the circuit works is either to trace the tracks on the board, or to look at the circuit when it is running.
If you had the circuit running in one of the strobe modes, then one of the PIC pins will probably be slowly switching between high and low, and you might be able to work out which pin by using a multimeter.
