Power Supplies & Magnetics

August 2018
Capacitive Isolation: The Future AC/DC Power Conversion

Figure 1: Various Galvanic Isolation Technologies

Capacitive isolation is a mature solution developed over the past decade to replace optocouplers in signal isolators, isolated gate drivers, isolated transceivers, and other applications. However, the potential to use capacitive isolation to replace optocouplers in offline adaptors is often neglected. This articles
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Date:
08/31/2018
Precision Meets Power, It's the Refulator

Figure 1. LT6658 Typical Application

Precision analog designers often rely on the quiet humble voltage reference to power their DAC and ADC converters. This is beyond the fundamental role of the reference, which is designed to solely provide a clean precise stable voltage to a converter’s reference input. With some caveats, this usually works,
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Date:
08/30/2018
Medical-Grade Power Supply Features Operation From 80-264VAC
MIDDLEBOROUGH, Mass. – Sager Electronics is now stocking Mean Well’s MFM Series 05-30 Watt AC-DC medical grade power supply. The MFM-05-30 series is a high density, small size AC-DC on-board, medical grade power supply.
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Date:
08/30/2018

Surface Mount Inductors for Multi-Purpose Applications
Signal Transformer announces their new SCIHP0412, SCIHP0420 and SCIHP0420TB Series of Surface Mount Inductors (SMD) for Notebooks, Tablets and Multi-Purpose Applications. These new series of SMD Inductors are ideal for tablets, notebook/desktop, server applications, battery powered devices, low-profile and high-current
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Date:
08/29/2018
18kW HVDC Power Shelf Features 240 to 380Vdc Inputs
Bel Power Solutions announces the the SPSPFE3-07 power shelf, which provides rectification, system management and power distribution from HVDC mains (240/380Vdc) power into a main output of 12 VDC for powering intermediate bus architectures up to 15kW (5+1) in high performance servers, routers and network switches. Each
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Date:
08/29/2018
AC-DC Power ICs Offer Highest Power Density in the Industry
IRVINE, Calif. -- Fabless power semiconductor company Helix Semiconductors announced Murata Group represented by Murata Manufacturing Co., Ltd. as the first to co-develop the new MxC 300 transformerless chipset for their AC-DC converter modules. Helix Semiconductors’ MxC 300 is a two-chip solution
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Date:
08/28/2018
Water Vapor Annealing Technique on Diamond Surfaces for Next-Generation Power Devices

Schematic illustration of the formation of OH-terminated diamond (111) surface by water vapor annealing of H-terminated one.

Kanazawa - Diamonds are adored for their dazzling beauty, often displayed in exquisite jewelry. But, this solid form of carbon is also renowned for its outstanding physical and electronic properties. In Japan, a collaboration between researchers at Kanazawa University's Graduate School of Natural
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Date:
08/27/2018
Chemists from the University of Waterloo have successfully resolved two of the most challenging issues surrounding lithium-oxygen batteries, and in the process created a working battery with near 100 per cent coulombic efficiency. The new work, which appears this week in Science, proves that
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Date:
08/24/2018
Tubular Wirewounds for High-Power Load-Dump Applications
RALEIGH, NC - Stackpole's EWT series of vitreous enamel coated tubular wirewounds is a good choice for high-power load-dump applications. It is available in power ratings from 25 watts up to 300 watts. he vitreous enamel coating withstands temperatures of up to 500C and allows operating temperatures
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Date:
08/23/2018
Simultaneous power supply for mainboard and 24V peripherals
The new industrial PC PSU BEA-750H from Bicker Elektronik, Donauwörth/Germany, offers in addition to the regular ATX outputs for current mainboards a strong 24VDC output, which can be loaded with up to 7 amps and thus provides enough power to ensure the reliable supply of displays, receipt printers, card readers,
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Date:
08/22/2018
WÃrth Wireless Connectivity from Digi-Key
The product range encompasses highly efficient wireless transmission solutions in the Bluetooth or Wireless M-Bus standard as well as proprietary wireless modules in the frequency ranges 169, 433, 868, 915 MHz and 2.4 GHz. Thanks to their low power consumption, these high-quality, compact components are ideal
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Date:
08/22/2018
Compact 200 Watt metal cased power supplies
It extends the existing TXM series which ranged from 15 to 150 Watt with an additional 200 Watt series. With a compact metal case and screw terminal block connections, they are easy to install in any equipment. There are three models of single output voltages from 12 VDC to 48 VDC. They also feature an universal
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Date:
08/22/2018
Maxim 5kVRMS Reinforced Digital Isolator
To better protect industrial systems from the dangers of high-voltage signals, equipment designers can now turn to the new robust and reliable MAX22445 5kVRMS four-channel reinforced digital isolator from Maxim Integrated Products, Inc. (NASDAQ: MXIM). Delivering up to 2x greater throughput at 4x lower power
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Date:
08/22/2018
550 Watt Ultra High Density Power Supply
Gresham Power Electronics announces the introduction of its latest micro-footprint, Ultra High Density (UHD) 550W output power supply the OF(M)550. The product range has been designed for use in applications including industrial and telecom systems, medical equipment and LED lighting. This new series
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Date:
08/22/2018
950V CoolMOS P7 Superjunction MOSFET
Infineon Technologies ushers a new member of its CoolMOS™ P7 family, the 950 V CoolMOS P7 Superjunction MOSFET. It meets even the most rigorous design requirements: for lighting, smart meter, mobile charger, notebook adapter, AUX power supply and industrial SMPS applications. This new semiconductor solution
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Date:
08/22/2018
Powerbox presents Enhanced Rail Power Solutions at Innotrans 2018
From low power board-mounted DC/DC converters up to fully customized power solutions delivering multi-kilowatts, PRBX-ERPS is one of the most flexible and adaptable power solutions for railway applications. Designed to reduce time to market and meet specific rail industry requirements, PRBX-ERPS building blocks
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Date:
08/22/2018
Power Test Solutions Available From 6kVA to 150kVA
For an unparalleled selection of precision AC and DC power sources at power levels from 6kVA to 150kVA, look no further than Pacific Power's AFX Series.  Now available in a new 2018 A version with expanded frequency and voltage ranges. Fully programmable and capable of AC, DC or any combination
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Date:
08/21/2018
18kW Power Shelves Compatible with Open Compute Rack Designs
Bel Power Solutions and Protection announces the SPSPFE3-05G and SPSPFE3-06G power shelves, which provide rectification, system management and power distribution from 3-phase AC (3W+N+PE) power into a main output of 12 VDC for powering intermediate bus architectures up to 15 kW (5+1) high performance servers,
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Date:
08/15/2018
Power Supplies Designed for Low-Power IoT Applications
PLANO, TX – RECOM's latest 15W and 20W AC/DC power supplies are designed for low-power IoT and household applications. Based on the footprint of the compact RAC10-K modules, these new modules feature high-efficiency over a wide load range and minimal standby power consumption. The RAC15-K and
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Date:
08/15/2018
App That Will Extend Your Smartphone Battery Life
New research out of the University of Waterloo has found a novel method to extend the battery life of smartphones for up to an hour each day. The researchers have developed an app which smartphone users can use to reduce the energy consumption of their devices without any
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Date:
08/15/2018
Power Supply Includes Medical and Industrial Safety Approvals
Artesyn Embedded Technologies announced the LCM3000 series AC-DC single-output enclosed power supplies, which can supply up to 3000 watts output power with medical and industrial safety approvals. Designed to be a cost-effective forced-air bulk front end power supply, the LCM3000 series offers configurable nominal
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Date:
08/14/2018
Inductor Offers a 50% Reduction in DCR
MALVERN, Pa. — Vishay Intertechnology, Inc. introduced the first device in its new IHSR series of high-temperature commercial inductors. Designed for multi-phase, high-current power supplies and filters in computer, industrial, and telecom applications, the Vishay Dale IHSR-4040DZ-51 offers a 50 % reduction
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Date:
08/13/2018
CF-Rated Medical Power Supply Suited for Surgical Instruments
Phelps, NY – Bear Power Supplies has designed and is shipping a CF-rated medical power supply for surgical instruments and other medical applications. The rugged 9-Watt AC/DC converter is sealed and encapsulated to withstand wash down and rigorous drop testing. It meets UL60601-1 and UL60601-2
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Date:
08/13/2018
Power Integrations Certifies USB PD Adapters
San Jose, Calif. – Power Integrations announced that a range of adapter designs based on Power Integrations’ InnoSwitch 3-Pro and InnoSwitch3-CP ICs have achieved compliance with USB Power Delivery (PD) 3.0 standards. During a recent workshop in Portland, Oregon, nine adapter designs featuring
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Date:
08/10/2018
Output Modules Support Medical & Industrial Applications
FORT COLLINS, Colo.—Excelsys Technologies Ltd., an Advanced Energy company, announced the upcoming release of two new CoolMod DC output modules expanding the CoolMod offering. The CmH is the dual output module and the CmF is the bulk power module for the CoolX Series of convection cooled modular
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Date:
08/09/2018
PSDcast - Silicon Carbide Devices in Cascode Arrangements

Anup Bhalla, VP of Engineering from United Silicon Carbide.

In this episode of the PSDcast, we’re discussing wide band-gap semiconductors and talking to UnitedSiC about the idea of using silicon carbide devices in cascode arrangements. See UnitedSiC's white paper referenced in the PSDcast
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Date:
08/09/2018
DC-DC Converters Perform Local Voltage Conversion to 48V
MIDDLEBOROUGH, Mass. - Sager Electronics is now stocking TDK-Lambda’s i3A Series of 100W non-isolated DC-DC converters. TDK-Lambda's i3A power modules perform local voltage conversion from a 12V, 24V, or well-regulated 48V bus. The i3A series utilizes a low component count that
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Date:
08/07/2018
Power Supply Designed for Cost-Sensitive Applications
Bel Power Solutions announces the ABH50 Series, a 50 W open-frame power supply designed for cost-sensitive industrial applications. The ABH50 features a highly efficient quasi-resonant flyback converter and meets DOE requirements for standby power and Class B EMI with Margin. This open frame PSU features
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Date:
08/07/2018
PSDcast - The Formula E Electric Racing Series

Mitch Van Ochten from ROHM Semiconductor

In this episode of the PSDcast, we’re discussing the premier electric racing series, the Formula E championship. In particular, we're exploring ROHM Semiconductor's official technology partnership with the Venturi team. For more: www.fiaformulae.com/en
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Date:
08/07/2018
Multilayer Chip Beads With High-Rated Currents
TDK Corporation has developed the new MPZ0603-H series of multilayer chip beads for power lines in an IEC 0603 package (EIA 0201) that feature twice the rated current and about half the DC resistance of the existing MPZ0603-C series. Thanks to a newly developed technology for the internal electrodes, TDK was
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Date:
08/07/2018
TTI, Inc. Acquires Compona AG of Switzerland
TTI, Inc announced the acquisition of privately held Compona AG of Switzerland and the company’s German subsidiary Cosy Electronics GmbH. Both Compona and Cosy are specialty distributors of interconnect products and provide services such as in-house assembly of specific connector ranges and full support on
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Date:
08/02/2018
New CMOS op-amp delivers class-leading low-noise
ROHM today announced the availability of a CMOS op-amp featuring the lowest noise in the industry optimized for industrial applications requiring high-accuracy sensing, such as accelerometers used in sonar systems, and optical sensors that handle ultra-small signals. In recent years, in addition to
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Date:
08/02/2018
DRQ DC/DC Converters Delivers 1K Watts at 97% Efficiency
Murata has announced the 1 kW DRQ-11.4/88-L48 Series of quarter brick, intermediate bus, DC/DC converter modules that address the growing power requirements of high-reliability networking and telecommunications infrastructure equipment. The fully regulated DRQ-11.4/88-L48xx
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Date:
08/02/2018
High-voltage analog input module added to OpreX lineup
Yokogawa Electric Corporation has announced the development of the GX90XA-10-V1 high-voltage analog input module. The new product will be released on July 9th as part of the OpreXTM Data Acquisition family of data collection and control solutions. The GX90XA-10-V1 module enables Yokogawa recorders
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Date:
08/02/2018
2.5A Backup Power Manager Provides High-Efficiency Charging
NORWOOD, MA - Analog Devices announces the Power by Linear LTC4041, a complete supercapacitor backup power management system for 2.9V to 5.5V supply rails that must be kept active during a main power failure. Supercapacitors have higher power density than batteries, making them ideal for systems requiring high
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Date:
08/01/2018
One Giant Leap for the Power Industry
Welcome to the July/August edition of Power Systems Design. Traditionally, things quieten down a bit over the summer period and we get a chance to take some well deserved rest and relaxation. This year that rest is even more welcome as things seemed to increase in intensity as the year went on. Things
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Date:
08/01/2018