New Industry Products

Vicor Introduces New PRM & VTM Current Multiplier Modules

April 28, 2008 by Jeff Shepard

Vicor Corp. introduced its VI BRICK™ PRM™ (Pre-Regulator Module) and VTM™ (Voltage Transformation Module) Current Multiplier, members of the new VI BRICK family that are said to provide an advanced modular platform for power solutions. VI BRICK PRMs and VTms are said to provide all of the technical advantages of Factorized Power Architecture (FPA) including high power density and efficiency, low-noise operation, architectural flexibility, extremely fast transient response, and elimination of bulk capacitance at the point of load.

VI BRICK PRMs and VTMs are described as offering a flexible and scalable architecture for dc-dc power conversion utilizing Factorized Power™ in a robust "brick-like" package designed for efficient thermal management. The flexible architecture facilitates several design configurations including multiple outputs, high power arrays, high-current/low voltage, and high voltage. These models include six PRMs, which perform the regulation function, and twelve VTMs that take the "factorized bus voltage" from the PRM and provide transformation and isolation.

The VI BRICK PRM is a non-isolated regulator specifically designed to provide a controlled Factorized Bus distribution voltage for powering downstream VI BRICK VTMs. In combination, VI BRICK PRMs and VTMs are said to form a complete dc-dc converter subsystem offering the unique benefits of FPA including the capability of separating the regulation (PRM) and transformation (VTM) for improved board layout and thermal design.

The VI BRICK VTM current multiplier is said to deliver superior speed, power density, and efficiency to meet the demands of advanced power applications. It is stated that a major benefit of the VI BRICK VTM is that capacitance at the load can be nearly eliminated, substantially increasing system density while improving reliability and decreasing cost. In applications requiring higher current or redundancy, VI BRICK VTMs can be operated in parallel without adding control circuitry or signal lines.

"VI BRICK PRMs and VTMs provide unique advantages to designers due to the inherent flexibility they provide for architecture, layout, thermal management and design requirements." said Joe Sullivan, Product Marketing Manager. "These features provide value to our customers by helping them to improve efficiency, reduce size, eliminate components, lower cost, and reduce time to market."

VI BRICK models are available in a base temperature grade of -40 to +100°C, operating, and -40 to +125°C, storage, with a slotted-flange baseplate and through-hole pin style. All modules of the VI BRICK family are RoHS compliant and compatible with lead-free wave soldering processes. These models are robust, thermally proficient, and compact with a footprint of 2.08 in² and low profile of 0.37" (dimensions of 1.91 x 1.09 x 0.37" (48,6 x 27,7 x 9,5mm).

Pricing for VI BRICK PRMs and VTMs begin as low as $33 USD in OEM quantities and lead times can be as little as 4-6 weeks for samples.