Technical Articles

Why Optimize Buck Regulators for 8V-18V Operation?

Why Optimize Buck Regulators for 8V-18V Operation?

Over the past few months, I have published a few articles discussing the advantages of our soft turn on ZVS Buck topology when it is applied to a wide ranging (8V-36V) input voltage combined with large step down ratios of as much as 36:1.

Read more »

Fast, Online Simulations Shape Advanced Power Supply Architectures

Fast, Online Simulations Shape Advanced Power Supply Architectures

The task of the power system engineer grows steadily more complex. At the level of individual PCBs, semiconductor devices – microprocessors, FPGAs and the like – demand a range of discrete voltage levels, frequently at around 1 V and at currents of tens of Amps. The physics of distributing power at these levels mandates regulation as close to the point-of-load as possible: I2R losses and minute but inescapable inductances are always poised to degrade the performance of low-voltage, high-current paths that see rapid step-changes in power demand. At the other end of the power-conversion...

Read more »

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).

Read more »

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 »

Achieving Optimized, Minimum-component Input Filters for Transformer-coupled ZVS Buck-Boost DC-DC Converters

Achieving Optimized, Minimum-component Input Filters for Transformer-coupled ZVS Buck-Boost DC-DC Converters

Transformer-coupled ZVS buck-boost DC-DC converters provide highly efficient solutions for telecommunication power systems. However they may need input filters for protection from electromagnetic interference (EMI) and high frequency input noise. These filters must be stable over the operating frequency range.

Read more »

What is a Buck Regulator?

November 7, 2012
By

We interviewed the VP responsible for the Picor product line, Robert Gendron, tapping into his knowledge about the design and performance considerations for buck regulators when powering embedded devices. Because it turned out to be such a great interview, with lots of great information, we’ll be posting his responses as a series over the next couple of months.

Read more »

Using 400 Vdc for Efficient Distribution of Data Centre Power

November 5, 2012
By
Using 400 Vdc for Efficient Distribution of Data Centre Power

Within telecommunications and data centres, continuing growth in processing equipment’s power demand is imposing evolutionary change on the power architecture that feeds it.

Read more »

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

Get Connected