New VI BRICK™ Advanced DC-DC Power Platform

New VI BRICK™ Advanced DC-DC Power Platform

By integrating V•I Chip™ technology into traditional brick packages, the new VI BRICK™ modular DC-DC power platform delivers significantly increased power capability and design flexibility. The family’s robust, low-profile brick packages facilitate both thermal management and through-hole assembly. The 45 modules within the VI BRICK™ family are optimised for a range of DC-DC configurations: Intermediate Bus Architecture or point-of-load (POL) designs that require multiple output voltages; flexible DC-DC regulation and transformation using Factorized Power™; and 48V DC-DC conversion using advanced Sine Amplitude Converter™ technology. With a fast transient response, VI BRICK™ modules also minimise...

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EMI Filters Used in Military Vehicle Radios

EMI Filters Used in Military Vehicle Radios

The reliability and compact packages of Vicor Picor modules were key considerations for a Vicor customer in Turkey. The Picor modules are being used to achieve low EMI by reducing switching noise at the converter input, and to reduce the ripple currents at the output of the converter, in multi-band, multi-mode radios designed for use in tactical military vehicles. The QPI family of active EMI filters provides conducted common-mode (CM) and differential-mode (DM) attenuation from 150 kHz to 30 MHz in the CISPR22 range. The proprietary active filtering circuit provides superior attenuation at low...

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V•I Chips Solve a Noise Problem

V•I Chips Solve a Noise Problem

A small company located in the northeastern US specializing in rapid prototyping of harsh environment instrumentation and ocean-acoustic research was developing a sonar system designed to detect intruders in a particular area, eg for harbor defence. The new sonar system was being designed to transmit and receive signals that can then be interpreted to identify what has been detected, such as a swimmer or a small underwater vehicle. Vicor initially provided Micro modules for the prototype system, but the sonar system transmits a signal and waits to receive a reflected signal in response. During...

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Stratospheric Wi-MAX-HAP

Stratospheric Wi-MAX-HAP

The University of York, working with Swiss technology company Strat-XX, are developing a WiMAX-HAP system. This aims to deliver WiMAX wireless broadband services via cellular networks and spot beam antennas as the payload on stratospheric High-Altitude Platforms (HAPs), such as airships or hot-air balloons, at an altitude of around 21 km above the earth. The basic concept for the system is shown below: Using one customer premises equipment (CPE) as a gateway to the wired internet, at least one other remote CPE is linked to the wider internet via the HAP payload. Other users...

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New V•I Chip™ Through-Hole Packaging Option

New V•I Chip™ Through-Hole Packaging Option

Vicor has added a through-hole packaging option for all V•I Chip products. This is in addition to existing surface mount (SMT) compatible packaging, doubling the available range. This new option allows power designers in a broader range of applications to take advantage of the benefits of V•I Chips. Through-hole products are electrically and thermally identical to the SMT versions and are compatible with both hand soldering and wave solder techniques so they are perfect for fast prototyping or large production runs. Through-hole assembly facilitates multi-chip cold-plate or heatsink mounting and makes system assembly simpler,...

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Mid-power Maxi, Mini, and Micro modules for military and aerospace applications

Mid-power Maxi, Mini, and Micro modules for military and aerospace applications

Vicor has introduced a number of new mid-power products to its families of pre-defined modules Maxi, Mini, and Micro DC-DC converters. These modules are well suited to the demands of military and aerospace environments, allowing designers to select standard products better tailored to their specific power and current requirements. Still incorporating Vicor’s patented low-noise Zero-Current and Zero-Voltage Switching (ZCS/ZVS), these products’ inherent low noise greatly reduces the design effort and filtering costs required for power converters to meet various conducted emissions requirements, such as MIL-STD-461. With these new offerings, Vicor can now provide an...

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New MIL-COTS 28 V DC-DC V•I Chip™ Modules: 20% more power and 1/3 the volume in a rugged, miniature package

New MIL-COTS 28 V DC-DC V•I Chip™ Modules: 20% more power and 1/3 the volume in a rugged, miniature package

Vicor’s new MIL-COTS 28 V DC-DC V•I Chip modules consists of a 28 Vdc input PRM™ regulator and a family of VTM™ current multipliers with output voltages from 1 to 50 Vdc. The PRM and VTM chipset provides the full functionality of a DC-DC converter with high efficiency and higher power density, fast transient response, low noise, and flexible thermal management. With each module weighing only 15 grams and measuring just 32.5 x 22 x 6.6 mm, the chipset offers specific advantages for designing power systems in mission-critical portable and airborne applications. A PRM...

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