VPT Introduces Radiation Hardened Point of Load Converters

BLACKSBURG, VA, June 27, 2018 – VPT, Inc. (VPT®), a HEICO company (NYSE:HEI.A) (NYSE:HEI), today announced the availability of its SVPL Series of space-qualified point of load DC-DC converters. Covering an input voltage range of 3.1 to 13.2 V and available in 6, 9, and 12 A output surface-mount options, the SVPL products are designed specifically for space applications facing harsh radiation environments while requiring low voltages and tight regulation for high-performance processors.

The SVPL Series use Renesas’ ISL7000x family of rad-hard synchronous buck regulators to provide high power density, fast transient response, and up to 94% efficiency. The ISL7000x bare-die ICs are characterized for Total Ionizing Dose (TID) of 100krad(Si), including Enhanced Low Dose Rate Sensitivity (ELDRS), and they are immune to destructive Single Event Effects (SEE) with Linear Energy Transfer (LET) of 86.4 MeV-cm2/mg. The complete SVPL Series of converters are characterized for TID of 100krad(Si), including ELDRS, and SEE performance to 85 MeV-cm2/mg, per VPT’s DLA-approved Radiation Hardness Assurance (RHA) plan.

“The SVPL point of load converters have a high radiation tolerance, particularly regarding Single-Event Transients (SETs),” said Brandon Witcher, Senior Design Engineer for VPT. “The product designs minimize the external capacitance needed to limit SET magnitudes to the levels required by modern rad-hard digital electronics, which is especially important as digital power rail tolerances continue to shrink.”

“We are delighted VPT adopted our Intersil brand of bare-die synchronous buck regulators for their SVPL Series,” said Philip Chesley, Vice President, Industrial Analog and Power Business Division, Renesas Electronics Corporation. “The highly integrated ISL7000x devices are built on six decades of spaceflight product development and leadership.”

Additional features of the SVPL Series include high power density, output enable control, low output noise, overcurrent protection, and external synchronization to other converters or system clocks. Full power operation of the SVPL Series is rated for -55° C to +125° C.

“Space systems have increased the use of rad-hard digital processing components that require low-voltage, tightly regulated point of load converters,” explained VPT’s President, John Hodock. “In an industry where tested, qualified, and proven products are the only viable option, we’re pleased to work with Renesas Electronics to incorporate its Intersil high-rel bare die ICs and extend our rad-hard space product line to address this market need.”

The availability of the SVPL Series is subject to all applicable U.S. export license restrictions and regulations. Additional information can be obtained by contacting a local VPT distributor.


VPT’s Dan Sable Inducted into Virginia Tech’s Academy of Engineering Excellence

May 1, 2018 — VPT’s Co-founder and CEO, Dr. Dan Sable, was one of six Virginia Tech alumni to be inducted into VT’s College of Engineering Academy of Engineering Excellence last week.

Credit: Virginia Tech

The academy was founded in 1999 by former Dean of the College of Engineering, F. William Stephenson, as well as the college’s advisory board and honors alumni who have had exceptional career successes.

Dr. Sable received his master’s degree and Ph.D. from Virginia Tech in 1985 and 1991 respectively. He then went on to work as a research scientist at the Virginia Tech Center for Power Electronics. In 1993 Sable joined Fred Lee, who was the director of the Center at the time, and Gary Hua to form VPT, Inc. Now, the company has global success providing high-reliability power supplies for mission critical applications.

Dan Sable is currently serving as VPT’s CEO as well as an adjunct professor at the Virginia Tech Bradley Department of Electrical and Computer Engineering. In addition, he is a member of the Virginia Tech College of Engineering Committee of 100, the Virginia Tech Global Engineering Engagement and Research Advisory Board, and the Virginia Tech Space @VT Advisory Board.

We want to congratulate Dr. Dan Sable on earning this very well-deserved accolade!

To find out more about this year’s inductees visit Virginia Tech’s website.

VPT Appoints Solid State Supplies for Product Distribution in the UK

BLACKSBURG, VA, April 16, 2018 – VPT, Inc. (VPT®), a HEICO company (NYSE:HEI.A) (NYSE:HEI), today announced that it has entered into an exclusive distributor agreement with Solid State Supplies Ltd for VPT’s high reliability power conversion products in the UK and Ireland markets. As a division of Solid State Plc (AIM: SOLI), Solid State Supplies is a highly accredited and experienced distributor for globally-recognized electronics OEMs.

With an approach that parallels VPT’s in-depth focus on the high-reliability DC-DC converter and EMI filter market, Solid State Supplies’ commercial and technical service excels through a comprehensive understanding of the products they represent. In addition to being certified to AS9120 for aerospace quality management systems, the distribution company is renowned for its ongoing efforts to educate customers through technical training and workshop events.

“We are pleased to begin a partnership with Solid State Supplies as our exclusive distributor for VPT products in the UK, as this partnership enables us to best support our diverse customer base on their critical programs with unparalleled technical and sales expertise,” said Monty Pyle, Vice President of Sales and Marketing for VPT. “With Solid State Supplies’ experience and commitment to high-reliability product representation, we are confident of a seamless transition for existing customers and continued superior service for new customers.”

John Macmichael, Managing Director of Solid State Supplies said, “The VPT product range complements the existing Solid State power operations. They are an innovative, high quality supplier where we are confident that our approach will increase sales beyond the current run rate and broaden the customer base.”

VPT Presents at Space Parts Working Group 2018

April 11, 2018 VPT’s Vice President of Engineering, Leonard Leslie, presented company and space components updates today to the attendees at the 47th annual Space Parts Working Group in Torrance, CA. Guests included members from government agencies, prime system contractors and subcontractors, part suppliers, and laboratories.  The Space Parts Working Group (SPWG) is sponsored by The Aerospace Corporation, in cooperation with U.S. Air Force Space and Missile Systems Center (SMC), and the National Reconnaissance Office and is an unclassified, international forum which disseminates information to the aerospace industry and for resolving problems with high-reliability electronic piece parts for space applications.

Wide Input Voltage Range Rad Hard DC-DC Converters for Space

November 30, 2017 –  Today VPT announced that its SVR Series isolated DC-DC converters now offer an 18 to 40 V input range. The radiation-hardened SVR series of DC-DC converters is available in single and dual outputs and has been characterized to Total Ionizing Dose (TID) to 100 krad(Si), including Enhanced Low Dose Rate Sensitivity (ELDRS), and Single Event Effects (SEE) performance to 85 MeV-cm2/mg.

All SVR Series isolated DC-DC converters from VPT feature a wide input voltage range of 18 to 40, with a 50 V transient operation. The SVR Series isolated converters are highly efficient and utilize VPT’s proprietary radiation immune magnetic feedback technology. Features of the series include input undervoltage lockout, output soft start, current limit and short circuit protection. Additionally, the SVR Series is rated for full power operation up to 125° C.

“The demands of the space market continue to expand and change,” stated Monty Pyle, Vice President of Sales and Marketing for VPT. “Now more customers are seeking rad-hard solutions that require up to 40 V input, without the need to meet the stringent Aerospace TOR and MIL-HBK-1547 derating requirements. Since our SVR Series is MIL-PRF-38534 Class H and Class K qualified and available on DLA Standard Microcircuit Drawings (SMDs), the products offer the ideal efficiency and reliability for such customers.” Pyle explained that although the SVR Series isolated converters have always had 18 to 40 V range operation, the products were initially specified at 37.5 volts to support the Aerospace TOR and MIL-HBK-1547 requirements, for which the SVR Series was originally developed.

The first standard commercially available products from VPT were designed specifically for the harsh environment of space. Now with nearly 25 years of proven space heritage, VPT offers high reliability and high efficiency solutions to organizations around the world in industries which require reliable operation of each component for overall mission success.