Ooooh shinny 2x 10440 host (pic heavy)

[Kmor2004]

My bad, I was picturing the inductor tyoe of buck converter, like a boost converter but with a few parts swapped around, something that gives Vin > Vout and Iin < Iout compared to a boost converter where its Vin < Vout and Iin > Iout.

I hope that makes sense, basicly I was picturing the fancy kind of buck converter not the basic kind.

 

[qumefox]

Buck simply means the DC-DC converter's (regardless of type or construction) maximum output voltage will always be lower than it's input voltage.

Boost is the opposite (provided the circuit is provided with adequate current) It's output voltage will always be higher than input voltage.

Most DIY drivers people make themselves are generally always buck drivers. Usually in the form of linear regulators.

DIY boost drivers are possible, but are considerably more complicated and, unless your really good with SMD work.. will end up considerably larger. And boost/buck drivers will be even worse still to design/build into a small footprint.

 

[Kmor2004]

I agree on the complexity and size parts, I was just stating that I was thikning with a closed mind rather then picturing a linear regulator as buck I was only thinking of the more complex inductor based DC-DC converter.

Think of it as an over engineering stand point from my mind.

 

[blue bumblebee]

what does 2/16 lumens mean???
0.125 lumens?....
sorry for this ignorant question

 

[Kmor2004]

Basicly it "HAD" 2 modes low and high and lumens is just a measure of brightness, to actually salvage teh drive may be a bit difficult.

 

[qumefox]

If it was only 2/16 the stock driver probably wasn't capable of running a 445 diode very well anyway, though to be honest, the 445's are robust enough there's generally no harm in trying so long as you observe proper ESD and connection procedures, so you don't kill the diode by ESD or accidentally discharging a driver output capacitor into it.