This paper describes the techniques to design low power series low dropout regulators (LDO) with low output noise and high power supply rejection (PSR). The noise analysis of the bandgap reference is critical to the linear regulator’s output noise, since it represents the main source of noise. The necessary trade-offs that a designer faces are discussed according to the demands of modern IP cor...

When one thinks of "power", one often assumes that a person is the source of it and that some mystical charismatic element is at work. Of course, with some people this is undoubtedly so; they derive power from how other people perceive them. In organizations, however--says this author--power is not so much a question of people but of positions. Drawing a distinction between productive and oppre...

Rapid advances in technology have resulted in laptop (mobile) computers with performance and features comparable to desktop (stationary) machines. Advances in rechargeable battery technology have failed to keep pace, decreasing the usefulness of mobile computers and portable wireless devices. Several methods of power management can be used to prolong the battery life of a mobile computer. We pr...

My research focuses on the intersection of computer systems, algorithmic game theory, and economic mechanism design. My interdisciplinary work has introduced computer architects to a rich body of knowledge in economics and game theory. My dissertation marks the beginning of a paradigm shift in computer architecture toward more robust, game-theoretic analysis of shared systems. As a result, my w...

This paper presents a survey on the various power saving techniques used in wireless networking today. The work presented covers topics ranging from the use of energy harvesting techniques at the physical layer to partitioning the load of power hungry computations across multiple devices at the application layer. While research in this area continues to grow, few standards have yet to emerge th...

U.S. data center energy consumption is expected to double every 5 years, as shown in Fig. 1, at a huge cost both financially and to the environment. Microsoft itself launched two new mega-data centers last year, in Dublin and in Chicago. Sadly, much of the power consumed by these data centers is wasted. As documented in a recent Google study, [2], servers are only busy 20-30% of the time on ave...

The performance demands of new systems are forcing new approaches to solving complex power management problems. Solutions will require a system approach where portions of the power management circuitry will exist in the form of traditional separate chips and portions will be literally embedded with the system chips themselves. This paper will explore two such high performance systems, multi-GHz...

Power consumption of electronic devices has become a serious concern in the recent years. Power efficiency is necessary to lengthen the battery lifetime in the portable systems, as well as to reduce the operational costs and the environmental impact of stationary systems. Two new approaches that enable systems to save power by adapting to changes in environment are proposed: dynamic power manag...