Power_electronics Features

NewSpace demands low voltage, high current power for performance and longevity - Nov 2022
Matt Renola, Senior Director, Global Business Development – Aerospace & Defense
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Power Converters Features
Obtaining Highest Efficiency in DC/DC Converter Applications - Nov 21 October, 25 2021
While improvements in Silicon power devices have been incremental, the introduction of wide-bandgap devices, such as Silicon Carbide (SiC), allow a jump in performance to be attained. Thanks to reference designs, such as Toshiba’s bidirectional DC/DC power supply, design engineers can significantly speed-up evaluation of suitable design approaches and topologies and get up to speed on the intricacies of using SiC...
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Maximize Gains Using Miniaturized PoL Converters - Nov/Dec 2020 November, 20 2020
System power requirements today are challenging, with designers needing to overcome issues such as multiple supply voltages, voltage sequencing, high transient load currents, and excessive heat. Rather than address these problems at the system power supply, it is more beneficial to introduce measures at the PCB (printed circuit board) level, meaning some form of point-of-load (PoL) converter is required...
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Flying Capacitor Topology for Ultra Efficient Inverter Applications - Nov/Dec 2020 November, 20 2020
High efficiency and reduced effort for filtering are the main arguments for three-level (3L) topologies. Actually, there are several 3L topologies used in solar applications. The limitation of all Neutral Point Clamped (NPC) three-level topologies is the fact that a 150 Hz ripple has to be filtered with DC capacitors, which are independent on the frequency of the Pulse With Modulation (PWM). With high frequency and utilization of SiC semiconductors it is possible to reduce the size of the output
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The Landscape of Isolated DC/DC Bias Power Supplies - issue 2/2020 June, 16 2020
Moving signals and power across an isolation barrier is a common challenge for designers. Isolation might be required for safety, noise immunity or large potential differences between system domains. Understanding system-level specifications like the number of outputs, regulation requirements, output power, insulation rating, operating temperature and input voltage range are critical. From there, designers can derive the lowest-cost solution that meets all of the system requirements..
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Stabilizing Voltage the Right Way - issue 2/2020 June, 16 2020
Bypass capacitors are frequently needed in electronics development. Placement of bypass capacitors on the board in a switching regulator is very important for achieving the greatest possible effectiveness for these components...
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PCB Design for Low-EMI DC/DC Converters - issue 1/2020 February, 20 2020
Every switch-mode power supply presents a wide-band noise source. Integrating a DC/DC converter from the car board net into an automotive control unit and still fulfilling the EMC requirements of automotive OEMs is a difficult task...
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High-Voltage boost and Inverting converters for communications - issue 6/2019 December, 09 2019
The field of electronic communications is rapidly expanding into every aspect of ordinary life...
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Decentralized controller for a multilevel Flying Cap converter - issue 4/2019 August, 06 2019
This awarded paper for Young Engineers presents a decentralized method to balance the capacitor voltages of a Flying-Cap converter....
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GaN based high-density unregulated 48V LLC converters - issue 3/2019 June, 26 2019
Two-stage 48V voltage regulator module (VRM) with unregulated first stage DC/DC converter providing intermediate bus voltage followed by multi-phase buck converter has proven to be a scalable and efficient approach for 48V rack architecture in data centers..
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1 MHz Converter with 95% Peak Efficiency for Aircraft Applications - issue 3/2016 June, 15 2016
This design methodology of a 50W isolated DC/DC converter serving as a power supply for aircraft equipment like a FADEC (Full authority digital electronics control) has been awarded as Best Paper of PCIM Europe 2016, sponsored by PEE...
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Concrete Binded Magnets for large power inductors - issue 3/2016 June, 15 2016
The increasing demand for more and clean energy has led to a rising need for large inductive components....
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48V GaN Point-of-Load Converter- issue 4/2015 July, 15 2015
Gallium Nitride (GaN) devices have hit the power electronics market with force. By offering lower capacitances and zero reverse recovery, they promise to dramatically improve efficiency and open up new markets....
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New 3 level Topology for efficient solar applications - issue 7/2014 December, 10 2014
Three-level topologies' most persuasive selling points are high efficiency and reduced filtering effort. Several three-level topologies feature prominently single-phase solar applications.....
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Thyristors for >10 Gigawatt Power Transmission - issue 7/2014 November, 10 2014
A new Thyristor platform with voltage ratings 6.7kV, 7.2kV and 8.5kV was developed to enable an optimal design of converter valves with DC link voltages above 1 MV maximal area utilisation of 150 mm silicon wafer...
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For high Power LEDs, Solar Cells and Batteries - issue 6/2013 October, 02 2013
The best LED drivers accurately regulate LED current for consistent colour reproduction and modulate it rapidly for high contrast dimming....
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Inverting Buck Regulator Saves Space and Power - issue 7/2011 January, 26 2012
Designers are periodically faced with the requirement to generate a negative voltage rail in order to provide a bias voltage for applications using sensors which read signals both above and below ground. For many engineers, the first thought will be to use inverting regulated charge pumps: in fact, these are ideal for handheld applications where the output voltage required is less than -5V and the input is typically a lithiumion battery.
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Choosing inductors for DC/DC regulators - issue 6/2011 October, 01 2011
When selecting an inductor for the output storage element of a switching DC/DC regulator, a designer can be faced with a bewildering array of options from different suppliers and even within the ranges of one supplier.....
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98% Efficient single-stage AC/DC Converter Topologies - issue 4/2011 July, 13 2011
A new hybrid switching method is introduced in this article which for the first time makes possible AC/DC power conversion in a single power processing stage providing both Power Factor Correction and isolation at high switching frequency.
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