Eleazar Falco, FAE, Würth Elektronik eiSos / Editor, Gerhard Stelzer
Isolated flyback converters often use optocouplers in the feedback loop to regulate the output voltage. As part of the compensation circuit, its parameters such as CTR influence the control loop and must be taken into account in the flyback converter design.
The flyback converter is an isolated switching power
A significant percentage of a building's energy consumption is due to its lighting.
Historically, lighting was a coarsely controlled power load, managed manually with a simple on-off switch. With
Shane Callanan, Director of Applications Engineering, Excelsys Technologies
LEDs are gaining significant traction in the lighting market due to their long operating lifetime, low running cost, and ease of control for specific applications.
However, in order to realize
Author: Tony Armstrong, Director of Product Marketing, Power Products Linear Technology
Incandescent light bulbs waste 90% of the energy they consume in the form of heat.
The light outputs from HB (high-brightness) LEDs have already exceeded the critical milestone of 100 lm/W. In fact,
Figure 1: Modern robotic systems featuring sophisticated multi-axis arms are adding to factory productivity and safety. Simply picking up an object can require several sensors.
Automation is providing improvements in safety, accuracy, and convenience for many everyday applications.
Consider the precision and advantages of computer-assisted surgery or the array of automation
Peter B. Green, LED Group Manager, International Rectifier
Solid-state lighting applications such as streetlights and industrial lighting demand drivers that offer better efficiency than the traditional flyback topology in the 50250 W power range.
As
Figure 1: One-Stage Approach: The driver converts an AC-rectified line voltage to the necessary DC current through a flyback transformer and filter. Unfortunately, the rectified voltage contains ripple at twice the line frequency (100 or 120 Hz).
Scott Brown, Senior Vice President, Marketing, iWatt
The SSL (solid-state lighting) industry is in a state of excitement mixed with trepidation.
With the obvious need for lighting more efficient than traditional incandescents, key market drivers
Randy Skinner, Staff Product Marketing Engineer, Lattice Semiconductor
For some designs, reducing circuit-board power dissipation by 25% to 30% would just be a nice outcome. For other designs, it's an absolute necessity.
Designers of products using the latest high-performance