In this article published by EDN, CUI’s Director of Engineering, Fariborz Musavi, discusses the growing challenges of powering today’s advanced processors and the need for innovative solutions to address rapidly-rising current requirements, dropping core voltages, and tighter voltage tolerances.
The article begins, "Moore's Law has brought us immense amounts of computing power through advanced microprocessors and FPGAs. Massive increases in transistor count have made it possible to implement multiple high-speed processors on a single die, each running at speeds up to 3GHz. But these advances in density and performance have increased the number of problems that face engineers working on power delivery for these loads."
"But the maximum power envelope of server processors and FPGAs is still in the order of tens of watts, and pushing over 100W for the highest-performance products. The result is a current demand that is beginning to exceed the 100A level at the point-of-load (POL). Using traditional power-conversion architectures, this demand results in the need for larger components able to handle the high stresses involved."
The article then dives into the traditional approach of how to overcome the obstacles of meeting this increasing power demand.