PRESENTATION

Vertical Power Delivery with Current Multiplication

The AI processor power delivery network (PDN) is enormously complex – electrically, mechanically, and thermally. Vertical power delivery (VPD) is essential to address this complexity, particularly with the latest processors pushing beyond two to three kilowatts. In addition to the need for massive levels of low voltage / high current delivery, these processors also need tight voltage regulation with minimal voltage ripple and low noise, as well as excellent transient workload response performance. This article will review the advantages of using current multipliers at the point of load, to achieve these critical performance objectives. Current multiplier design and operational considerations will be discussed, along with the factorized power architecture that enables regulation and lower power losses due to a 48V power delivery capability.

Maury Wood

Vicor

Maury Wood is VP of Strategic Marketing at Vicor, focusing on the most challenging power delivery markets, including AI computing. Prior to Vicor, Maury held senior roles in the fiber optic test industry and in the semiconductor industry. He attended the University of Michigan and received additional education at MIT and Northeastern University in Boston.