Quote:
Originally Posted by HarryT
What percentage of the battery power of an eInk reader do you think the CPU accounts for? I suspect it's pretty minimal - the screen is by far the greatest user of power. The CPU enters a very low-power "sleep" mode between page turns.
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The main components of an eReader are:
- eInk screen
- CPU
- volatile memory
- flash memory (internal and/or external)
- (and of course the circuit-board itself)
Given that list, yes, I would assume that the CPU is a significant (and most probably the single largest) proportion of power usage. If I'm wrong, then where is the power being used? Neither the screen nor the flash should be using
any power "between page turns". I would doubt if the (very small) amount of volatile memory would account for all the power drain all on its lonesome. And finally, I doubt if the circuit-board itself would draw much power, without any of the components connected to it being active.