Technical Features

November 2013
BLDC-Based Cordless Power Tools Offer Longer Run Times and a Better User Experience

Click image to enlarge

Figure 1. Three-phase BLDC motor drive overview

Introduction Cordless power tools are becoming increasingly popular in professional and DIY usage due to their ease of use, portability, and increased safety over mains-powered tools. With the inclusion of brushless DC (BLDC) motors, they are now suitable for most tasks. However, manufacturers are being chal
. . . Read More
Date:
07/01/2021
High-performance resistors in custom power supplies

Click image to enlarge\n
Figure 1. A simple Zener regulator circuit

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
. . . Read More
Date:
11/19/2013

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

Click image to enlarge\n
Figure 1: I-V Characteristics of Normally Off GIT GaN and Conventional Normally On GaN

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
. . . Read More
Date:
11/14/2013
Power Mgmt. in Health Care Applications
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
. . . Read More
Date:
11/05/2013