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Apple's solar powered iPhone and iPod?

One of the latest patent applications from Apple delves deeper into the company's experimentation with integrating solar power cells with their portable devices, including the iPod and iPhone models.

The patent -- titled "power management circuitry and solar cells" -- describes a system for a portable device use of solar power to either power the device fully, or assist in providing energy to a battery.

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The patent appears to be an advancement of a previous patent that Apple filed in 2008, which was unearthed by MacRumors and which described how the solar panels would be configured on portable devices.

What's interesting about this patent is how Apple is integrating "boost" circuitry within the devices so that it can work together with the solar cells to generate power, even when power is already low or nonexistent or if some of the solar cells are obstructed.


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