Quote:
Originally Posted by ProDigit
Forward voltage is different from backward voltage.
There are diodes that have a backward voltage of 97V as well.
I'm not saying that these are the leds installed in the kindle, all I'm saying is that the backward voltage with 'device -1' is not more than a few milli-volts, and would not harm the leds, neither would reversing polarity of full battery voltages cause any damage to the leds.
More than likely battery voltage is around 3.8V; but some e-devices have 2 batteries in series having 7.4V.
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You are overstating the obvious, and you are paraphrasing things you quoted.
Also, considering that the brightness is an 8-bit unsigned value, your -1 value would be treated as 255, which is maximum brightness, and certainly not darker than "no light" as you seem to be expecting from how I (and others) have interpreted your posts.
Where did you get that 97V reverse breakdown voltage? There are diodes that have a much higher limit than that arbitrary value.
And yeah, dead horse... 0 is fully off. 255 is fully on. Anything in between is in between. And anything else is just silly...