Technical Features

April 2016
A New Era in Audio Performance with Infineon’s MERUS™ Multilevel Class D Amplifiers

Click image to enlarge

Figure 1: MERUS™ amplifiers have a special power stage topology. In this design each half-bridge uses four MOSFETs (M1-M4) and the capacitor is “flying” between those to serve as an extra supply rail, resulting in a three-level output signal at the output switching node

Voices, noises, music – they are part of our lives. Sound has always been all around us. It connects us to our surroundings either we produce or just listen to them. Being an integral part of our everyday, conception and design of audio products and their environments have become more and more essential. In
. . . Read More
Date:
05/01/2019
LED technology has developed over recent years, and is now the obvious choice for many applications from energy-efficiency architectural lighting to outdoor displays. These applications tend to vary considerably, each requiring a different number, type, color and configuration of the LEDs, which means that driver
. . . Read More
Date:
04/17/2016
The buzz around a concept called The Internet of Things has been around for a few years, and it’s not going away anytime soon. In fact, it might be bigger than anyone ever imagined. And all that added connectivity brings with it a great deal more control. The industry is becoming excited
. . . Read More
Date:
04/17/2016
LEDs are increasingly used in 24VAC and 12VAC lighting systems as a robust, energy efficient and high performance alternative to halogen lamps. Power converters that drive the LEDs should have a high power factor (above 90% in order to meet generally-accepted green standards), should be efficient, use a minimal
. . . Read More
Date:
04/17/2016

Beginning February 10, 2016 power supplies for medical equipment must comply with the new U.S. DoE energy efficiency standards (LEVEL VI). They also must meet the more stringent electromagnetic immunity and other requirements dictated by the new 4th Edition IEC/EC/UL60601-1-2 released in 2014 which becomes effective
. . . Read More
Date:
04/17/2016
Transformers can often provide an inexpensive solution for a variety of applications. The purpose of the transformer is to isolate the secondary side of the circuit from the primary power source, transfer power efficiently from the electrical source to the target load and protect users from hazards like electric
. . . Read More
Date:
04/17/2016
The Internet of Things (IoT) is providing increasing levels of transparency in our everyday energy usage, be it for connected factory equipment or small appliances or in exciting new market segments including wearables and drones.  Advanced Power Management Integrated Circuit (PMIC) designs have implemented
. . . Read More
Date:
04/15/2016
The phone Martin Cooper used was the prototype Motorola DynaTAC, and it could only be used for 20 minutes before the battery died. Battery life has continued to cause concern for manufacturers. Bluetooth introduced its low-energy feature in 2010 with Bluetooth 4.0 with energy efficiency as the prime goal, achieved
. . . Read More
Date:
04/15/2016
An effective method for filtering high-frequency power supply noise and cleanly sharing similar voltage supply rails (i.e. analog and digital rails for mixed-signal ICs) while preserving high-frequency isolation between the shared rails is the use of ferrite beads.  A ferrite bead is a passive device that
. . . Read More
Date:
04/15/2016
The desire for ever higher image quality has seen frame rates in high-end televisions increase to 240 frames per second (fps) simply to ensure that the fast moving action in sports programs or movies does not suffer from smearing or multiple images. Display panels for PCs similarly need to support high frame
. . . Read More
Date:
04/14/2016