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Efficiency Breakthrough Promises Smartphones that Use Half the Power

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Efficient chipsets

The five power amplifiers denoted by red dots account for up to 60% of an iPhone 5s total power consumption.

Credit: Jake Devincenzi

Powering cellular base stations around the world will cost $36 billion this year—chewing through nearly 1 percent of all global electricity production. Much of this is wasted by a grossly inefficient piece of hardware: the power amplifier, a gadget that turns electricity into radio signals.

From Technology Review
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