Schematic approval

[slothfurnace]

Technically, the Obi was a li-ion.

The Luke ROTJ? GASP! NiMH 4xAAA pack.

[Silver Serpent]

Hehe. All we need now is for Sunrider to come wandering by this thread and discuss his ideas of brightness.

[hedgehog1]

Mike:

Are you still planning to use the NB for this saber? Or will running it silent but with 'blade pulse' be enough for your purposes?

I ask because the BuckPuck dimming and the BuckBlock dimming are (annoyingly) quite different. The BuckPuck is current limited to 20ma and works in 0-5 volts. The BuckBlock is not current limited, but the input can never be more than 10ma; it also works in 0-10 volts.

The exact circuit will be a bit different depending on what you choose to do. Running the NB just means a change in the resistor for the BuckBlock, while using the flashing LED to run 'blade pulse' a slightly bigger design change for the BuckBlock.

Marc...

[mikeclem]

Hi HH,

I am still intending to run this with an NB. Having looked at the datasheet for the Buckblock I see it doesn't require a resistor if I'm just running the LED from it without dimming. The NB features 'blade flickering' (presumably using duty cycles as we've discussed) so presumably doesn't require a resistor for the BuckBlock, or am I missing something?

BW,
Mike

[hedgehog1]

Mike,

Actually, I think you are right. You will not need a pull-up resistor - so a straight connection should work fine.

Forge ahead!

Marc..