Argh! What I get for daring to dream. Thanks for waking me! Hijack deleted.
Dim.
The most important function of D1 is to provide reverse polarity protection for the processor chip…
This page shows what the stars do:
http://intl-outdoor.com/amc71353-5mode-circuit-board-nanjg-ak47c20-p-596.html
Woody
You are paralleling current sinks so each chip will adjust its internal resistance so that it sinks its setpoint current - with these chips you can get integer multiples of 0.35A. For in between values you can shunt this parallel network of ICs with a resistor.
There is another issue and that is the ‘compliance’ of the current source.
What he said. Where ever you buy the driver should have info on star connection/mode selection. If they dont, buy elsewhere. The last thing you want to do is swap a driver and STILL be stuck with blinky modes unless you have to be.
Thanks pyro for the rev protection note, forgot that little tidbit 
As for the mode selection, if you buy the two group version, the stars have no effect on functionality. Only the four group version uses the stars.
PPtk
The face rub, oh Lord have mercy!
Relic, thanks for the schematic and to all who provided inputs! 
Hehe… I try.
I guess maybe they’ve changed the design of the AMC7135 since I last looked at it. Perhaps 0A, 7A, 14A, etc are the only attainable current values?
I’ll take Apple, please!
confused a bit. Dimbulb didn’t say even integers only so isn’t he correct? Since integers are simply whole numbers 1 x 7135, 2 x 7135, 3 x 7135, etc. these produce integer multiples of .350 A. Feel free to give me the face rub if this is not so.
Perhaps that is what he meant. I was just giving him a hard time anyway (hence the smiley below the facepalm).
PPtk
Well, that’s alright then. Yank away.
Now a whole number? Did I miss another memo?
Sorry, the main reason I thought it was so funny is because years ago I had a boss that was a retired supply seargeant, he’d get pissed and do a seriously wack face rub that required him to remove his glasses. “Dale, I’ve seen everything from a Jewish wedding to a Mongolian goat f*#k and I have never seen anyone do things the way you do!”
I had to crack up.
Sorry.
I worked with another carpenter I nicknamed machine gun Kelly for his penchant for shooting up trim(much to the dismay of the painters). I never could convince him to lay off the trigger a bit.
I took it to mean you can multiply .350A by any integer value, eg. .35A, .7A, 1.05A, etc., which is precisely what happens.
I’m ultra gullible so it did not even occur to me that Pilot was fooling with him.
I promise I will never ever take advantage of your gullibility, never.
I believe you. 0:)
If that’s true, then you’re far more gullible than I imagined