Techniques de gestion de puissance dans les systèmes sur puce

In most applications, power consumption has become a major criterion in the design of embedded electronic devices. The requirements of target applications may influence the design of systems with very low power consumption or with managed temperature, or a combination of the two for some systems. Mobile and embedded systems powered by batteries belong to the first type of application. The second type of application involves complex chips, including a large number of transistors (e.g. multimedia processing and video games). For these systems, different hardware techniques can be used inside chips, allowing power consumption to be controlled and reduced. This article gives an overview of these techniques at system architecture level.