Comparing uninterruptible power supply topologies By Uninterruptible PowerSupplies Limited
Today, uninterruptible power supply (UPS) systems are typically employed to support data centers, communications hubs and other applications using sensitive ICT equipment. These installations’ continuous availability is usually critical to their owners’ survival, so a clean, uninterrupted power supply becomes a business-critical requirement.
This article compares on line and off line UPS topologies, together with a third variant – line interactive topology. As rising energy costs sustain the demand for better energy efficiency, this article also reviews Eco mode UPS operation and its contribution to improved PUE. For more, click here.
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.