comment on this article

ZVS technology applied to point of load regulators

ZVS technology applied to point of load regulators

In a move to boost power density and efficiency, Vicor has launched the Picor PI33XX Cool-Power ZVS buck regulator series and is targeting the devices at point of load applications.

The family, based on Zero Voltage Switching (ZVS) topology, is said to offer a peak power efficiency of 98%. Products in the family feature control circuitry, power semiconductors and support components integrated in an lga package measuring 10 x 14 x 2.56mm.
Initially, six PI33XX buck regulators are being launched. These can convert input supplies ranging from 8V to 36V to outputs ranging from 1V to 16V. Output current can be up to 10A, to a maximum of 120W. These parts will be followed by a range handling inputs from 5 to 18V and another group covering 8 to 75V.
Power delivery can be increased by interleaving up to six PI33XX parts using single wire current sharing without the need of any additional components.
Claudio Tuozzolo, Picor's president, said Picor is focused on innovative and integrated solutions based on control, power conversion and packaging. This has resulted in products with high levels of integration, a high performance architecture for power conversion and high performance packaging.
"I'm not aware of many companies that can innovate at all three levels," he added. "We have the opportunity to provide customers with incremental value on all three fronts."
The use of a ZVS topology enables high frequency operation that maximises efficiency by minimising the switching losses associated with hard switching topologies. "Customers are looking for higher efficiency, density, power processing with a higher Vin/Vout ratio and faster switching," claimed Tuozzolo. "However, switching losses affecting performance. While you can get better efficiency, it's often a trade off against density. ZVS gets around this and that's why deployed the technology at the point of load."

Author
Graham Pitcher

Comment on this article


This material is protected by Findlay Media copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

Enjoy this story? People who read this article also read...

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

ELDS gets underway

Over 4,000 design engineers will be gathering at the Electronics Design Show in ...

Converting opinions

Internet enabled mobile devices are continuing to become more prevalent in the ...

Packing in the power

When it comes to power supplies rated at 250W and beyond targeted at medical ...

NI Trend Watch 2014

This report from National Instruments summarises the latest trends in the ...

DC/DC power modules

GE's SlimLynx series of encapsulated and non isolated DC/DC conversion power ...

Innovate UK

Innovate UK is holding a two day event at Old Billingsgate, London between ...

ES LIVE 2015

Taking place on 14th May at the Madejski Stadium in Reading, Electronics ...

Powering wearables

A fresh batch of growth predictions on wearables has once again highlighted the ...

Terence Watson

Ask Terence Watson about power electronics and you're left in no doubt of his ...