you know that the translation might as well be in Chineeze , cause we still can not read it.
Lupino get yourself a AMC7135 board and Test it, it is fun. they dont cost much, it is easy to hook up on the workbench.
drive it with a single li-ion and see where you get on the bench.
when the voltage of the battery gets very close to the voltage that the LED is at, AT the current it is driven, the AMC7135 type of drivers will fall out of regulation.
it is a rather nice way to treat the battery, and it is reasonable efficent. the thing will just clip off the excessive voltage to make the current for the led.
do not drive the AMC7135 type of driver with more than 6volts. remember everything over the led voltage will be clipped and come out as Heat into the AMC7135 chip thing. so do not use 2S li-ion (8.4V) with those drivers. Untill you do special tricks that are not without issues.
that is the jist of it simply.
if you dont like that, then the costs of the drivers to keep in full regulation (full power always), is higher , and then the input voltages will proably WANT to then be higher, just because the next type of drivers would work best with the 2S and up configurations.
you really have to try this stuff out (when it doesnt cost much to do so, especially)
some people love it, some people hate it, the battery will like it.
Then to progress from there, you would know more of what you want and do not want. you might think that neverending runtimes and dwindling outputs are just not your thing, or that a single easy li-ion battery just isnt complex enough for you, or you insist on higher outputs, or different configuarions.
without trying the simple stuff that costs little, the more complex stuff wont be easier.
you dont want to toss power out through any losses, the diagram you show (i think) will do just that, might be good if you have wall power handy , but there are better ways of wasting power, like wasting it through a LED
. and that method still leaves much to be desired.
it is still too easy, get the board, hook up for ONE cell and One led, then play with it, then make these alterations and see what you get, then put a LED in where you were blowing power for nothing, and see that too.
check out this thread, where they "waste" extra power in light items.
http://www.candlepowerforums.com/vb/showthread.php?t=201392
you think that I love to go on MTB under the rain even if it is dark :nana
