Hello
*EDIT: The driver described here seems to be useless to me LOL.. I need help to build a suitable driver..
I have the pictured driver from a Coleman 2xAA LED flashlight. The flashlight originally had 5 LED's, each with a tiny resistor marked 1R0...(now it has the module from my KD150 greenie in it [smiley=thumbsup.gif] ).
I also have a CREE 3 Watt LED from the Coleman MAX flashlight(which is now an 803T bluray@150mA).. I have read that the CREE 3W's need ~3.8v@1000mA to run at full power, not to mention a helluva heatsink. The MAX flashlight's driver consisted of one large resistor lol(3AAA power source).
What I'd like to know is what type of driver I have here, and if there is a chance of using it to drive the CREE. The component on the left is a small coil such as I have seen in boost drivers, which is what got my hopes up LOL. I'd like to use two NIMH AA's to power the LED.
EDIT: There are no components on the backside of the PCB. The only pass-thru connections are on the input and output solder points, otherwise the backside is blank..
2nd EDIT: I just did a test using a CR123 to power the driver and the original LED set.. I measured across the + and - ouputs of the driver, LED's lit up of course..I got a reading of 3.78V@2050mA (of course when I tested current, the LED's went out, so I imagine this isn't the way to do it). Is this what I can expect it to feed the CREE?.. if so I think I will have instant smoke... :-/ Measured In-Line with the supply power, I get ~535mA.. Again, not sure what to expect when I hook it up the the CREE..
Thanks in advance
*EDIT: The driver described here seems to be useless to me LOL.. I need help to build a suitable driver..
I have the pictured driver from a Coleman 2xAA LED flashlight. The flashlight originally had 5 LED's, each with a tiny resistor marked 1R0...(now it has the module from my KD150 greenie in it [smiley=thumbsup.gif] ).
I also have a CREE 3 Watt LED from the Coleman MAX flashlight(which is now an 803T bluray@150mA).. I have read that the CREE 3W's need ~3.8v@1000mA to run at full power, not to mention a helluva heatsink. The MAX flashlight's driver consisted of one large resistor lol(3AAA power source).
What I'd like to know is what type of driver I have here, and if there is a chance of using it to drive the CREE. The component on the left is a small coil such as I have seen in boost drivers, which is what got my hopes up LOL. I'd like to use two NIMH AA's to power the LED.
EDIT: There are no components on the backside of the PCB. The only pass-thru connections are on the input and output solder points, otherwise the backside is blank..
2nd EDIT: I just did a test using a CR123 to power the driver and the original LED set.. I measured across the + and - ouputs of the driver, LED's lit up of course..I got a reading of 3.78V@2050mA (of course when I tested current, the LED's went out, so I imagine this isn't the way to do it). Is this what I can expect it to feed the CREE?.. if so I think I will have instant smoke... :-/ Measured In-Line with the supply power, I get ~535mA.. Again, not sure what to expect when I hook it up the the CREE..
Thanks in advance