Power Supplies & Magnetics

September 2019
How to Design a Variable Output Buck Regulator

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Figure 1. Example of a variable output buck regulator

There are numerous reasons for creating a variable output buck regulator, such as to control speed of a DC fan, set the voltage for a 4 – 20mA current loop, track another voltage, or for dynamic voltage scaling. The processes for choosing the correct components and verifying the design are examined here. Figure
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Date:
09/30/2019
Do We Really Need a New Safety Standard?

Figure 1: IEC/EN 62368-1 is not a merge of the two standards IEC/EN 60065 and IEC/EN 60950 but a completely new one introducing a new way of working

Safety regulations have been in place for decades in the power industry and as we know only too well, all have been through lots of revisions. And although each revision has made them more stringent and tailored to our businesses, we have become familiar with designing products to conform to latest versions.
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Date:
09/30/2019
2200 W Front-End Power Supply with Full Digital Control
Bel Power Solutions announced the PES2200 Series, 2200 W high density power supplies with full digital control for servers, storage and networking equipment and other high-availability applications. With totem-pole bridgeless power-factor-corrected (PFC) and soft switching resonant techniques in conjunction
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Date:
09/26/2019

Rugged wide-range input 6/10W power modules
The DTE06 and DTE10 DC-DC converters provide 6W and 10W of power and offer a 4:1 input range, giving a wide tolerance for fluctuating supplies. With nominal inputs of 12/24VDC and 24/48VDC the series cover inputs between 9.0VDC and 75.0VDC.
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Date:
09/26/2019
Digi-Key signs global distribution partnership with Directed Energy
This new partnership adds to the more than 8.7 million products available from more than 800 manufacturers through Digi-Key. Directed Energy provides ready-to-use modules for driving laser diodes as well as
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Date:
09/26/2019
Surface-mount isolated DC/DC converters maximise flexibility
The converters deliver a space-saving solution for bus isolation and general industrial power applications. These open-frame surface-mount modules are available with standard isolation rating of 1kV/second
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Date:
09/26/2019
RS Components adds robust TDK-Lambda power supply series
The cost-effective RWS-B series of AC-DC industrial power supplies comprises 10 models, each coming with an isolated 5V 1A standby voltage option. This latter feature makes the series suitable for markets including industrial, communications, test and measurement,
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Date:
09/26/2019
TSR-WI Series â€
Covering the majority of standard bus- and battery voltages this POL converter line is a versatile solution for many applications in distributed power systems where different input voltages have to be handled. Being able to use the same converter in many different
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Date:
09/26/2019
Analog Devices ADF437x Synthesizers, Now at Mouser
The ADF4371 delivers one of the highest frequency synthesizers in the industry today, offering the widest continuous RF output range available — 62 MHz to 32 GHz — while the ADF4372 operates at 62 MHz to 16 GHz for designs that do not require the higher frequency.
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Date:
09/26/2019
Active current sharing added to BMR490 DC-DC converter
The current sharing capability enables two or more converters to be used in parallel for demanding datacom applications, thus delivering higher power on a single rail and improving redundancy. Up to six BMR490
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Date:
09/26/2019
LED drivers deliver high-current stability in portable devices
Key features include independently controlled output currents configured through an I2C-compatible interface and the ability to combine two devices (with different device identification addresses) to drive four LEDs up to 6A for quad-channel applications. The AL3644
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Date:
09/26/2019
New integrated point-of-load regulator increases efficiency
It is a fully integrated and highly efficient device in two versions (IR3826AM for 16 A and IR3826M for 23 A) for applications such as netcom router and switches, datacom, telecom base stations, server and enterprise storage.
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Date:
09/26/2019
EMC components: Extended range of power line chokes
The new components are available in three different core shapes with different rated currents and inductance values, delivering great design flexibility. The B82116B* rod core chokes cover rated currents of 10 A, 21 A and 25 A and offer inductance values of 1.8 μH,
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Date:
09/26/2019
Business Investment Platform Launched for Batteries
The EBA reconfirms that the business size of the European battery value chain will represent more than 250B€ annually, by 2025. Designed to bridge the gap between financial institutions and businesses, the
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Date:
09/26/2019
Technology enhances and simplifies design of 75 to 150W outputs
The SA modules are available with 5V /15A, 12V /12.5A, 15V /10A and 24V /6.25A outputs and offer a cost-effective solution for low power output requirements. The SA module’s patented loop control design uses
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Date:
09/26/2019
High reliability 80W DC/DC converter with 10 year warranty
Packaged in an industry standard 2x1 inch, six sided, shielded metallic case, the MGF80 series has been designed to Cosel’s strict criteria for high performance and reliability, contributing to the company’s world class quality with a failure rate of below 30
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Date:
09/26/2019
Innovative high-power, high-frequency transformer
Murata’s innovative and patented pdqb winding technology makes it possible to construct high frequency transformers of up to and over 400 kW that can operate at frequencies as high as 50 kHz. The pdqb winding technique overcomes the skin and proximity effects as
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Date:
09/26/2019
1000 W AC-DC Enclosed Power Supplies
Santa Clara, CA - Bel Power Solutions announced the ABE1000 Series and MBE1000 Series of enclosed power supplies, which are ideal for industrial (ABE Series) and medical (MBE Series) applications and available in a variety of single output voltages. The ABE1000
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Date:
09/19/2019
SIL 3-Rated Power Supply Now Shipping from Sager Electronics
MIDDLEBOROUGH, Mass. – Sager Electronics is now stocking Phoenix Contact’s SIL 3 rated QUINT 20+ Power Supply. The new QUINT 20+ power supply introduces a single SIL 3, conformal coated device solution
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Date:
09/18/2019
Are you SiC of Silicon? â€

Anup Bhalla, Vice President Engineering, UnitedSiC

Using Silicon Carbide (SiC) FETs in Data Center power supplies and telecom rectifiers With the deployment of 5G Networks, we can expect a massive build out worldwide, requiring many high-quality telecom rectifiers to provide the needed power.  To meet the need for improved efficiency,
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Date:
09/16/2019
TTI Offers Broad Inventory of Ohmite Power Resistors
Fort Worth, Texas – TTI, Inc., provides a deep and wide inventory offering from Ohmite’s full range of high power thick film resistors. Some of Ohmite’s most popular series include the TAH, TBH, TCH and TKH products. These series are available in TO-220 and TO-252 packaging and are engineered
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Date:
09/09/2019
Ultra-Flat Aluminum Electrolytic Capacitors Save Space
Liberty, SC – The new ULP Series of Ultra-Low-Profile aluminum electrolytic capacitors from Cornell Dubilier is a real “game-changer” for engineers designing compact electronic devices. Designed specifically for applications requiring bulk capacitance and the lowest board profiles, type ULP offers considerably
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Date:
09/09/2019
Using Magnetic Order to Transcend Conventional Electronics

Combination of Faraday rotation and second-harmonic generation obtained the trajectory of an optically induced coherent spin precession. The time-resolved SHG is a valuable tool for the study of antiferromagnetic spin dynamics providing complementary information that is inaccessible by other techniques.

Researchers around the world are constantly looking for ways to enhance or transcend the capabilities of electronic devices, which seem to be reaching their theoretical limits. Undoubtedly, one of the most important advantages of electronic technology is its speed, which, albeit high, can still be surpassed
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Date:
09/06/2019
Thru-hole Resistors Capable of Handling up to 7 KV
RALEIGH, NC - The RNV Series from Stackpole offers a robust ¼ watt size resistor capable of handling up to 7KV under IEC 60065.14.1 standard testing. The proprietary manufacturing and materials allow the RNV to withstand 1000 hours at 40 degrees C, 90% relative humidity with cycled power
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Date:
09/03/2019