High-efficiency 320 W pre-regulator module

8 August 2007 Power Electronics / Power Management

Vicor has introduced a high power 320 W PRM (pre-regulator module) non-isolated regulator. Designated P045F048T32AL, this latest V#183;I Chip component is designed for high-performance 48 V power applications such as servers, telecom and ATE.

The PRM provides a controlled Factorised Bus distribution voltage for powering downstream VTM current multipliers, creating fast, efficient, isolated, low-noise point-of-load (POL) converters. With an efficiency of 97% and matched with a 94% VTM unit, it enables direct 48 V-to-load with 91% efficiency, eliminating the need for an intermediate 12 V bus conversion stage and VRMs.

In combination, PRMs and VTMs form a complete DC-DC converter subsystem. Benefits of Vicor's Factorised Power Architecture include: high density and efficiency, low-noise operation, architectural flexibility, extremely fast transient response, and elimination of bulk capacitance at the point of load.

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