Power Trip for Mobile Devices-Cell phones, PDAs, digital cameras and a host of other consumer products are seeing phenomenal growth, fueled by the constant addition of functions that create more excitement in the marketplace. But for engineers, this increase in features poses a big challenge: how to do more while also extending battery life. Power
management is one of the hottest aspects of design today. It 's important in everything from autos to testing equipment and more. Prolonging battery life is at the heart of power management today, and that often includes controlling heat, controlling refresh rates, shutting down functions when they aren't needed, and judicious component selection. Indeed, managing power consumption entails critical thinking about nearly every component in the system, from controllers to displays to power converters, as well as software.