Antony, France Analog Devices introduces a single-phase, high-current switching controller ideal for applications that demand regulated precision and reliability, such as wireless base stations and network computing systems. The ADP1822 is a synchronous, fixed-frequency switching controller well suited for high current applications – such as communications infrastructure systems and high performance servers. A critical need for designing to meet power management requirements is how best to manage multiple power sources. The ADP1822 output voltage can track an input voltage when multiple power rails sequencing is required. This regulated output can be dynamically adjusted up or down with the regulator’s margining–control inputs. Margining offers the capability to offset the regulated output voltage by a few percent when the system reliability is being checked. The ADP1822 drives an all N-channel power stage to regulate an output voltage as low as 0.6 V with 20 A load current. The controller features a ±1 % 0.6 V on-board voltage reference. Analog Devices , Antony, France. www.analog.com.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.