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News Rockchip announces ultra-low-power Wi-Fi processor

Discussion in 'Article Discussion' started by Gareth Halfacree, 5 Jun 2015.

  1. Gareth Halfacree

    Gareth Halfacree WIIGII! Lover of bit-tech Administrator Super Moderator Moderator

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    Gareth Halfacree, 5 Jun 2015
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  2. ashchap

    ashchap Minimodder

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    They say it draws 20mA. What voltage is that at? Being generous and assuming it can run on 1.5V, you would get 60 hours out of a 1200mAh AAA battery. :eyebrow:
     
    ashchap, 11 Jun 2015
    #2
  3. asura

    asura jack of all trades

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    Let's run it the other way... assuming 8 leap years in the 35 year period that's 304416 hours (check me I'm tired) so 1.97e-4 volts?
     
    asura, 11 Jun 2015
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  4. mclean007

    mclean007 Officious Bystander

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    That doesn't make any sense. The voltage will be 1.5V at lowest. No semiconductors operate at the microvolt level you suggest. If anything, you'd be pumping the voltage *up*.

    I assume the battery life is based on 20mA during short infrequent duty cycles, with a much lower (by orders of magnitude) dormant current draw.
     
    mclean007, 18 Jun 2015
    #4
  5. Ending Credits

    Ending Credits Bunned

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    Yeah, you'd get a perhaps hourly update. 35 years still sounds ridiculously optimistic. I'd guess a year at best.
     
    Ending Credits, 18 Jun 2015
    #5
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