Category | February

A Low-Cost LED Driver Module, 0.5 A/33 V

Posted on 31 March 2015

      For general use, with efficiency above 90% This article describes a simple constant current driver module with fast PWM input that can be used for driving mid and high power LEDs. By Valentin Kulikov, FuturoLighting This module operates from 8V to 33V and the output current can be configured from 0.1 to [...]

PSU ICs use Innovative Technology to Reduce 25W Charger Cost and BOM Count

Posted on 24 March 2015

      Using new Fluxlink safety-isolated communication technology, InnoSwitch ICs combine primary- and secondary-switcher circuitry to reduce component count, eliminate slow and unreliable optocouplers, outperform primary-side controllers and slash manufacturing costs of power supply designs. By Mike Matthews, VP Product Development, Power Integrations Inc Manufacturers of smart mobile devices, set-top boxes, networking equipment and [...]

Integration and Miniaturization Trends

Posted on 19 March 2015

      Passive embedding for performance and reliability Thanks to new materials and integration technologies the embedding and integration of passive components is making great advances. New miniaturized components designed specifically for embedding enable even more compact and reliable systems. By Dave Connet, Director IC Reference Design, TDK The dimensions of passive components and [...]

Angle Sensor Devices in On-Axis and Off-Axis Applications

Posted on 10 March 2015

      This article provides a basic under- standing of how Allegro’s precision Circular Vertical Hall based angle sensor integrated circuits are used in on-axis and off-axis applications. Allegro MicroSystems, LLC Hall based angle position sensor ICs are increasingly preferred over other Hall and non-Hall based sensor solutions for position monitoring applications. They are [...]

4in1 400A/1200V Module with T-type Topology for 3-Level Applications

Posted on 02 March 2015

      A growing demand for 3-level inverter technology combining reduced power loss and increased power capacity is originating from power conversion applications like wind and PV inverter as well as from industrial equipment such as uninterruptible power supplies (UPS) and recently active front ends of 4-quadrant drives. By Marco Honsberg and Thomas Radke, [...]

Power Semiconductor Development

Posted on 25 February 2015

      The Influence of Power, Power Density and Lifetime Demands In 1983, GROWIAN, the world’s largest wind energy conversion system of its era went live with an output power of 3MW and an overall conversion efficiency of about 80%. With the absence of suitable power electronics, the necessary energy conversion was achieved by [...]

Unlocking Digital Power

Posted on 18 February 2015

      This is a story of change, a story that began 5 years ago when a small power company entered an uncertain market dominated by larger firms. Unlocking the true potential of digital power has required an approach very different to what had traditionally existed in the power supply industry. This company’s vision [...]