Stephen Oliver

Stephen
Oliver
Vicor Corp., Power Design

Stephen Oliver, vice president of Vicor’s VI Chip Product Line, has been in the electronics industry for 18 years, with experience in applications engineering, product development, manufacturing, and strategic product marketing in the ac-dc, telecom, defense, processor power, and automotive markets. Previously with International Rectifier, Philips Electronics, and Motorola, he received a BSEE degree from Manchester University, the U.K., and an MBA in global strategy and marketing from UCLA. He holds several power electronics patents as well.

Articles
Optimize a Power Scheme for these Transient Times
A variety of mix-and-match modules allows designers to adapt to multiple energy sources and load requirements for power subsystem targeting pulsed-RF applications that demand high transient response to the load current waveform.
+48 Is The New –48
Tight tolerance +48-V (nominal) power distribution allows systems to qualify as SELV designs, reducing installation and operating costs. Narrow-range 48-V rails facilitate high-efficiency power converters to power line cards and processors.
Reversible Power Improves Versatility
Most system designs contemplate power flows in one direction only: from source to power-management blocks to loads. Some types of systems, however, benefit from power-management blocks capable of bi-directional power flow.
The Hard Facts On Soft Switching
For many, a good rule of thumb for switch-mode power designs has been that hard switching is easy, and soft switching is hard. Power-switching technology developments, however, give reason to switch thumbs.
Next-Generation Servers Require Robust Power Platforms
Market forces drive incremental data-access and computing costs down with increasing use. In server environments, this means that processing efficiencies and densities must increase throughout the system-design hierarchy, from core to cabinet and beyond to the data center infrastructure.
Tap Online Design Tools To Improve Your Power Subsystem Designs
Vendor-provided online design tools allow engineers to start developing and evaluating designs quickly, gaining critical insights into design alternatives and engineering tradeoffs, even in advance of sampling major power components.
Move Thermal Issues To The Front Of Your Design Cycle 1
An effective design must consider the big picture of power needs, thermal dissipation, and overall packaging, and do so early on.
400-V DC Power Transformation Saves Upfront “Green” Supply Costs 3
Vicor's Stephen Oliver makes the case for 400-V dc power as the first stage in power distribution in an intermediate bus architecture for telecommunications and the data center.
Take A Multifaceted Power Approach To Reduce Your UAV’s Weight 1
UAVs (Drones) have multiple power buses and a need to minimize weight, including in power management electronics. Vicor's Stephen Oliver considers alternative topologies.
High-Voltage Busing Makes Sense
There are two conflicting ways to increase power-distribution efficiency in data centers as electricity flows between the front-end voltage converter and the ICs on blade servers. One is to lower the bus voltages around the circuit board. The other i
Commentaries and Blogs
Guest Blogs
Dec 15, 2014
blog

Who Are You? (I Really Want to Know!) 1

Borrowing a stanza from The Who’s hit song seemed like a good way to bring attention to a critical topic often ignored by engineers. When finding information on a company that has an interesting product, what do we do? Of course, we look at its Web page to learn more....More
Dec 15, 2014
blog

Bridging Technical Communication Barriers Between Cultures

Understanding technical concepts in different languages can sometimes prove to be difficult, particularly when you have to communicate it. In this article, I discuss the challenges and possible courses of action....More
Dec 1, 2014
blog

Programming Efficiency 7

When I started college, the Intel 4004 was being designed. The C programming language and UNIX operating system were being developed (unbeknownst to me). I did most of my programming in BASIC on an HP 2100 series mini-computer....More
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