Technical Features

November 2013

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Figure 1: Schematic of a high-voltage PowiGaN cascode switch

1250 V/1700 V GaN HEMTs for NVIDIA 800 VDC Architecture

Kamal Varadarajan & Chris Lee, Power Integrations

GaN-based power semiconductors are ideal for high-efficiency power converters thanks to their superior material properties. However, very few manufacturers offer GaN HEMTs rated above 650 V. The main challenge is that GaN devices built on silicon substrates require very thick buffer layers, which adds significant pr

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Date:

01/31/2026

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Figure 1. A simple Zener regulator circuit

High-performance resistors in custom power supplies

Phil Ebbert, Riedon

The subject of power supplies is potentially very broad and the application of resistors in power supplies is quite diverse. Here we will focus on power supply units (PSUs) designed for use in electronic appliances that nominally require fixed DC outputs ranging from just a few volts up to a few kV. Whether

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Date:

11/19/2013

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Figure 1: I-V Characteristics of Normally Off GIT GaN and Conventional Normally On GaN

Normally-Off and Current Collapse Free by Unique GIT Technology Realize Commercialization of GaN Transistor

Howard Sin, Panasonic

For more than thirty-five years, the power MOSFET dominated the power management systems due to its constant technological evolution from its device structure to its applications to circuit topologies. However, at the dawn of the new millennium, power MOSFET reached its theoretical limitations that it became un

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Date:

11/14/2013

Power Mgmt. in Health Care Applications

Frederik Dostal, Analog Devices

Different health care applications require different power management solutions. From a power management view, health care is a very interesting market. Though design cycles within health care are quite long, a high level of innovation is fueling the need for new health care electronics. These do not only replac

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Date:

11/05/2013