Posts Tagged ‘ PFC ’

High Power Density AC-DC Front-Ends Made Easy with the New PFM in VIA Packaging Technology

May 18, 2015
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High Power Density AC-DC Front-Ends Made Easy with the New PFM in VIA Packaging Technology

Today Vicor announced PFMs in VIA packaging technology, front-end power components that provide a PFC regulated 24 V or 48 V SELV DC output from a universal AC input.

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Rugged MIL-COTS PFC Front End Meets Stringent Demands In Aerospace & Defense

July 15, 2013
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Rugged MIL-COTS PFC Front End Meets Stringent Demands In Aerospace & Defense

Boasting a wide input range of 102 – 264 Vac (input operation down to 85 VAC, subject to additional derating) and a rugged construction,  Vicor’s MIL-COTS PFC Front End (GP-MPFC1H21) is capable of meeting most demanding defense and aerospace applications.

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How Adaptive Cell Topology Benefits AC Applications

June 11, 2013
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With the wide variation in AC line voltages around the world, universal power supplies are typically designed to accept 85VRMS to 264VRMS inputs. This range has imposed significant design trade-offs on the power factor corrected AC rectification typically used in front end converters. The Vicor PFM isolated AC-DC converter with PFC, and the AC Front End Module both have Adaptive Cell™ topology at their heart, providing a breakthrough in AC front end power factor correction that addresses these trade-offs to provide a consistently efficient solution. It does so by introducing innovation at three different...

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Back to Basics: What does Power Factor Mean and Why Must We Correct it?

February 4, 2013
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Back to Basics: What does Power Factor Mean and Why Must We Correct it?

Today’s commercial, industrial, retail and even domestic premises are increasingly populated by electronic devices such as PCs, monitors, servers and photocopiers which are usually powered by switched mode power supplies (SMPS). If not properly designed, these can present non-linear loads which impose harmonic currents and possibly voltages onto the mains power network.   Harmonics can damage cabling and equipment within this network, as well as other equipment connected to it. Problems include overheating and fire risk, high voltages and circulating currents, equipment malfunctions and component failures, and other possible consequences.   A non-linear load...

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Synthesis of Input Line Current in Power Factor Correction Control

Synthesis of Input Line Current in Power Factor Correction Control

Last year, Vicor presented a poster session at PCIM Europe in Nuremberg, Germany. Below is the paper from the show. Vicor will again be attending and presenting at this year’s event. Here’s a link to the conference program PCIM Europe 2013. PCIM Europe 2013 (14-16 May in Nuremburg, Germany).

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Video Interview about New High Density AC-DC Front-End Module

January 2, 2013
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Video Interview about New High Density AC-DC Front-End Module

Vicor’s Bob Marchetti was recently interviewed at the Electronica 2012 show in Munich, Germany, which can be viewed on Engineering TV. 

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Universal AC Power Factor Correction Benefits from Adaptive Cell Topology

Universal AC Power Factor Correction Benefits from Adaptive Cell Topology

Because of the wide variation in AC line voltages around the world, universal power supplies are typically designed to accept 85 VRMS to 264 VRMS inputs. This range has imposed significant design tradeoffs on the power factor corrected AC rectification typically used in front end converters.

Read more »

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