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Power Supplies

March 2019
When Grounds are Separated

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When Grounds are Separated
Frederik Dostal Field Applications Engineer Analog Devices, Inc.

How should you proceed with a switching regulator with an analog ground (AGND) and a power ground (PGND)? This is a question asked by many developers designing a switching power supply. Some developers are accustomed to dealing with a digital GND and an analog GND; however, their experience frequently fails th
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Date:
03/31/2019
Are you SiC of Silicon? - Part 1

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Anup Bhalla, Ph.D., Vice President Engineering, UnitedSiC

Are you SiC of Silicon? - Part 1
By: Anup Bhalla, Vice President Engineering, UnitedSiC

SiC applications began in the 2000s with the adoption of SiC JBS diodes into PFC applications. This was followed by the use of SiC diodes and FETs in the PV industry. But the recent surge in applications relating to EV On-board chargers and DC-DC converters is driving SiC growth. The nascent adoption in the EV
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Date:
03/31/2019
Helix Semiconductors Poised to Eliminate Power Supply Brick
Helix Semiconductors Poised to Eliminate Power Supply Brick
IRVINE, Calif. – It’s an all-too familiar sight in today’s homes and businesses: a tangle of cords emerging from behind a console, desk or conference table, connected to several large, bulky power supplies. TVs, DVD players, set top boxes, sound bars, digital media devices, monitors, printers, routers, laptops ..
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Date:
03/27/2019
3-Phase Gate Drive Solution Doubles Power
3-Phase Gate Drive Solution Doubles Power
Anaheim, Ca., USA: Pre-Switch, Inc., a Silicon Valley start-up that emerged from stealth mode last year, expanded its revolutionary soft-switching IGBT and silicon carbide gate driver architecture to cover 3-phase power systems. The platform, including the Pre-Drive 3 controller board, powered by the Pre-Flex FP
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Date:
03/27/2019
Power Integrations Increases Efficiency of Display Power Supplies with New InnoMux Technology

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PI InnoSwitch3-MX & InnoMux

Power Integrations Increases Efficiency of Display Power Supplies with New InnoMux Technology
Power Integrations, the leader in high-voltage integrated circuits for energy-efficient power conversion, has announced the release of the InnoMux™ chipset for display power supplies. The chipset’s unique single-stage power architecture reduces losses in display applications by increasing overall efficiency in constant-voltage and constant-curr
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Date:
03/27/2019
Power Inductors Save Space in High-Density DC/DC Converters
Power Inductors Save Space in High-Density DC/DC Converters
Woking, UK - TT Electronics has introduced the HA74 series of surface-mount power inductors, which combine a low profile, small footprint, and 3MHz switching capability for efficient, space-saving DC/DC converters. AEC-Q200 certified and specified for operation from -55°C to +155°C, the HA74 series is ideal
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Date:
03/25/2019
1.25-kW Small-Form-Factor GaN Inverter Reference Design
1.25-kW Small-Form-Factor GaN Inverter Reference Design
This reference design from Texas Instruments (TI) is a three-phase inverter with a continuous power rating of 1.25 kW at 50°C ambient and 550 W at 85°C ambient for driving 200-V AC servo motors. It features 600-V LMG3411R150 Gallium Nitride (GaN) power modules with an integrated FET and gate driver moun
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Date:
03/22/2019
Bi-Directional Regenerative Supply Packs 30KW in 4U Chassis
Bi-Directional Regenerative Supply Packs 30KW in 4U Chassis
San Diego, CA — Elektro-Automatik announces the EA-PSB 10000 30KW Programmable Bi-directional Power Supply. The 4U rack-mounted PSB 10000, engineered with advanced SiC power conversion devices switching at 150 kHz, boasts the industry’s best power density—requiring as little as half the rack space for the
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Date:
03/21/2019
Frequency-Optimized Planar Transformers Rated up to 250W
Frequency-Optimized Planar Transformers Rated up to 250W
Lake Forest, CA—Premier Magnetics announces its PM-PTxxx Series of frequency-optimized planar transformers. The new line, offering models with ratings to 250W, are designed for forward converter, full/half bridge and active clamp applications utilizing switching frequencies between 200 KHz and 700 KHz.  Proprietary lay
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Date:
03/21/2019
UnitedSiC announces SiC JFET family for low power AC-DC Flyback converters

SiC JFETs for Low Power AC/DC Flyback Converters

UnitedSiC announces SiC JFET family for low power AC-DC Flyback converters
March 19, 2019, Applied Power Electronics Conference (APEC) Anaheim CA, and Princeton,New Jersey: UnitedSiC, a manufacturer of silicon carbide (SiC) power semiconductors, today announced it has released a range of SiC JFET die suitable for co-packaging with a controller IC with built in low voltage MOSFET to fa
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Date:
03/20/2019
10A and 15A Fully Encapsulated PMBus Power Modules
10A and 15A Fully Encapsulated PMBus Power Modules
TOKYO, Japan – Renesas Electronics Corporation announced a pair of new encapsulated hybrid digital DC/DC PMBus power modules, the 10-amp ISL8280M and 15-amp ISL8282M. The hybrid digital power modules offer best-in-class power density of 115mA/mm2 in a 12mm x 11mm package, with up to 95 percent peak effic
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Date:
03/19/2019
UnitedSiC announces strategic investment by Analog Devices

Chris Dries, President and CEO at UnitedSiC

UnitedSiC announces strategic investment by Analog Devices
March 18, 2019, Princeton, New Jersey and Norwood, Massachusetts: UnitedSiC, a manufacturer of silicon carbide (SiC) power semiconductors, today announced a strategic investment and long-term supply agreement from Analog Devices, Inc. (ADI).  Terms of the investment and supply agreement were not announced.
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Date:
03/18/2019
DIN Rail Power Supplies with ATEX & UL HazLoc Certifications
DIN Rail Power Supplies with ATEX & UL HazLoc Certifications
San Jose, Calif. – TRACO POWER has announced the release of their TIB 80-EX Family of 80 Watt DIN rail power supplies that are designed for harsh environments & hazardous locations with certifications for ATEX II3G and UL HazLoc Class I / Div 2 standards. These products are the new vanguard of industrial pow
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Date:
03/18/2019
Wide Bandgap Semiconductors and Packaging - it’s happening

Kevin Parmenter, Field Applications Manger, Taiwan Semiconductor

Wide Bandgap Semiconductors and Packaging - it’s happening
Kevin Parmenter, Field Applications Manger, Taiwan Semiconductor

The promise of wide bandgap semiconductors (WBG) are higher switching frequency and higher operating temperatures perhaps smaller sizes, greater efficiencies and perhaps higher reliability, less size, less cooling – no fans for example, smaller heatsinks, smaller capacitors, less weight and overall better pe
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Date:
03/08/2019
Two Steps to High Voltages

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Figure 1. Boost topology for generating a high voltage from a low voltage

Two Steps to High Voltages
Frederik Dostal

If a high voltage needs to be generated from a low voltage, a boost converter can be used. This represents one of the three elementary switching regulator topologies and requires only two switches, an inductor, and input and output capacitors. Besides the boost converter, the other basic topologies are the buck co
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Date:
03/08/2019
Beat Obsolescence with PULS DIN-Rail Power Supplies
Beat Obsolescence with PULS DIN-Rail Power Supplies
PULS Power has undertaken not to discontinue standard products while enough demand is present to make them viable for manufacture. This provides their customers with the reassurance that they will not be forced into costly changes to their system components and performance in regular short intervals and to have
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Date:
03/06/2019
Han ES Press HMC connector range allows fast installation
Han ES Press HMC connector range allows fast installation
The new Han ES Press HMC (High Mating Cycles) connector series from HARTING combines the facility to be installed quickly without tools with extremely robust construction that allows the devices to handle at least 10,000 mating cycles. The quick connect technology used in the Han ES Press HMC involves the con
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Date:
03/06/2019
Industry’s smallest logic parts approved for automotive
Industry’s smallest logic parts approved for automotive
Nexperia announced that over twenty logic types in the company’s space-saving leadless MicroPak packages are now AEC-Q100 qualified. These logic solutions are the smallest devices of their type suitable for automotive applications and Nexperia’s Q100 portfolio exceeds the Automotive Electronics Council’
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Date:
03/06/2019
Industry’s first automotive USB 3.1 SmartHub supports Type-C
Industry’s first automotive USB 3.1 SmartHub supports Type-C
Microchip announces an automotive-qualified USB 3.1 Gen1 SmartHub IC, offering up to 10 times faster data rates over existing USB 2.0 solutions and reducing indexing times to improve the user experience in vehicles. To support the rising adoption of USB Type-C in the smartphone market and enable universal conne
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Date:
03/06/2019
Power solution for high speed e-commerce hub conveyers
Power solution for high speed e-commerce hub conveyers
Powerbox announces the introduction of its ENI250A series designed to deliver peak power to motor start or/and high capacitive loads in factory automation applications. The three-phase ENI250A series is housed in an IP54 case, delivers a constant 250W and up to 480W peak power with an efficiency up to 94%. The ENI2
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Date:
03/06/2019
Ultra-Low Power Technology applied to Energy Harvesting
Ultra-Low Power Technology applied to Energy Harvesting
e-peas has announced the introduction of a new power management IC specifically optimized for energy harvesting from thermal sources in wireless sensors application. Supplied in a space-saving 28-pin QFN package, the AEM20940 is a highly advanced device based on proprietary technology that is capable of extractin
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Date:
03/06/2019
VITA 62 compliant power supplies for MIL-COTS VPX applications
VITA 62 compliant power supplies for MIL-COTS VPX applications
Vicor Power Systems new line of VITA 62 compliant power supplies are designed for 3U Open VPX systems and achieve high-efficiency and high-power density in a rugged, conduction-cooled chassis. The initial products operate from a nominal 28V or 270V DC input, with predefined output voltages ranging from 3.3V to
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Date:
03/06/2019
New SCALE-iDriver SiC-MOSFET Gate Driver
New SCALE-iDriver SiC-MOSFET Gate Driver
Power Integrations announced the SIC1182K SCALE-iDriver, a high-efficiency, single-channel SiC MOSFET gate driver that delivers the highest peak output gate current available without an external boost stage. Devices can be configured to support different gate-drive voltage requirements matching the range of requi
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Date:
03/06/2019
20 V, 15 A Synchronous Step-Down Regulator
20 V, 15 A Synchronous Step-Down Regulator
ADI’s Power by Linear LTC7151S, a 20 V, 15 A monolithic synchronous buck converter with differential VOUT remote sensing. The LTC7151S uses Silent Switcher 2 technology, including integrated bypass capacitors to deliver a highly efficient solution with excellent EMI performance while easing layout constraints.
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Date:
03/05/2019
6-Channel Battery Stack Monitor
6-Channel Battery Stack Monitor
The LTC6810 is a multicell battery stack monitor. It measures up to 6 series-connected battery cells with a total measurement error of less than 1.8 mV. The cell measurement range of 0 V to 5 V makes the LTC6810 suitable for most battery chemistries. Key Features Measures up to 6 battery cells in series 1.8 m
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Date:
03/05/2019
3 kV rms Signal and Power Isolated CAN Transceiver
3 kV rms Signal and Power Isolated CAN Transceiver
The ADM3057E is a 3 kV rms isolated controller area network (CAN) physical layer transceiver with an integrated, isolated dc-to-dc converter. The ADM3057E meets flexible data rate (CAN FD) requirements for operation to 5 Mbps and higher and complies with the ISO 11898-2: 2016 standard. The ADM3057E can support da
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Date:
03/05/2019
μModule Regulators Use Inductor as Heat Sink
μModule Regulators Use Inductor as Heat Sink
ADI’s Power by Linear LTM4626 and LTM4638, 20 VIN μModule (power module) regulators use a 3D packaging assembly dubbed component on package (COP). The inductor is exposed on top of the device. Using the temperature gradient of the inductor, heat from the MOSFET inside is transferred to the inductor, then to
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Date:
03/04/2019
24 V to 220 V Precision Operational Amplifier
24 V to 220 V Precision Operational Amplifier
The ADHV4702-1 is a high voltage (220 V), unity-gain stable precision operational amplifier. It offers high input impedance with low input bias current, low input offset voltage, low drift, and low noise for precision demanding applications. Key Features    Wide range of operating voltages  &nbs
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Date:
03/04/2019
7 A Ideal Diode Shields Electronics from Reversed Supplies
7 A Ideal Diode Shields Electronics from Reversed Supplies
The Power by Linear LTC4376, an active diode with an internal 7 A MOSFET and −40 V reverse input protection. The LTC4376 replaces power Schottky diodes in diode-OR and supply holdup circuits, which reduces voltage and power losses by 10×. Key Features Low loss replacement for power Schottky diode
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Date:
03/04/2019
Reenvision Inductor Operation to Optimize New Applications

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Figure 1: Core material performance curves

Reenvision Inductor Operation to Optimize New Applications
Len Crane, Technical Marketing Manger, Coilcraft

What do new applications need in order to take advantage of new devices like wide band-gap semiconductors? They need the best inductors. And what is the best inductor for your application?   Answering that requires proper characterization of the inductors, which is more than can be conveniently obtained fr
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Date:
03/01/2019
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