Major New Range of 72V DC-DC Converters

Major New Range of 72V DC-DC Converters

Vicor has just launched a major new range of 72V input DC-DC converters for rail and transport applications. Joining their proven 110V modules, the new range introduces the rail industry’s widest choice of DC-DC converters. The new 72V input range features 27 DC-DC converters covering nine standard output voltages over three standard package sizes and three pin options. Power outputs range from 75W up to 400W. The modules meet EN50155 requirements for operating voltage, shock, vibration and temperature, whilst the product platform simplifies thermal management with three proven baseplate designs. The range covers five...

Read more »

MAXI MIL-COTS DC-DC Converters

MAXI MIL-COTS DC-DC Converters

A new family of MAXI MIL-COTS DC-DC converters allows designers to specify one converter for 12V and 24V vehicle battery systems. The 28V DC-DC Maxi converters feature a wide input range of 10V to 36V with eight different output voltage options and maximum power of 200W. Full encapsulation, using Vicor’s proprietary spin-fill process, ensures void-free encapsulation which protects the modules even in harsh environmental conditions.

Read more »

Droop-Sharing in a Compact Satellite Up-Link

Droop-Sharing in a Compact Satellite Up-Link

Droop-sharing is often the easiest and most reliable method of producing a redundant bus onto a backplane of a rack-based system. The method not only eliminates the need for a complex and vulnerable communications bus between PSUs, but also allows the backplane bus voltage to be further stepped-down to lower voltages to remove the need for absolute and precise regulation. These advantages, in conjunction with Vicor VI DC-DC converters, are being used in a compact satellite up-link, capable of fitting into a 3U rack. The up-link required a distributed bus of +7.2V at 12A...

Read more »

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...

Read more »

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...

Read more »

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...

Read more »

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...

Read more »

Find out more about our Cool-Power Buck Regulators subscribe to vicor newsletter Contact Us

Get Connected

 

Hot Topics

Learn more about these important power design challenges: