EDN

Audio amplifier power supply design – Part 2: External supplies, inrush current & RF emissions

However much care is taken, it is very difficult to keep all traces of transformer-induced hum out of the signal circuitry. It is highly irritating to find that despite the cunning use of low-noise ...
Business Wire

Research and Markets: External AC-DC Power Supplies: Economic Factors, Application Drivers, Architecture/Packaging Trends, Technology and Regulatory Developments - Tenth Edition

DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/f65594/external_acdc_pow) has announced the addition of the "External AC-DC ...
Electronic Design

Understanding Efficiency Standards For External Power Supplies

The global regulatory environment surrounding the legislation of external power supply efficiency and no-load power draw has rapidly evolved since the California Energy Commission (CEC) implemented ...
EDN

AC/DC power supply performance and international efficiency standards

The US Department of Energy’s AC/DC external power supply efficiency standards enacted in 2007 established a strict combination of no-load power consumption and average efficiency at loads from 25% to ...