Sign In

Communications of the ACM

ACM News

Efficiency Breakthrough Promises Smartphones that Use Half the Power

View as: Print Mobile App Share:
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
View Full Article



No entries found

Sign In for Full Access
» Forgot Password? » Create an ACM Web Account