Electronic Design

Power Transformer Design Quells Noise On AC Mains

A power transformer technology developed by Plitron Manufacturing Inc. of Toronto, Ontario, attenuates differential and common-mode noises on the ac mains to the ...
Ars Technica

Can someone explain to me how DC on the mains causes transformer hum?

I just got the latest Hifi News magazine and, as usual, the same ridiculously expensive mains cables etc are being pimped. I usually just skim over that crap, after admiring how pretty it is, but this ...
T&D

The quiet life

RAMSIS GIRGIS, MATS BERNESJÖ - Everyone is familiar with the characteristic hum that transformers produce. In sparsely populated areas, this drone will disturb few, but in urban areas it can be of ...
Los Angeles Times

Bah, hum! Noisy transformer behind Cerritos man’s house is finally replaced

It may have taken 18 months, but the state Public Utilities Commission has finally pulled the plug on a humming backyard electric transformer that a Cerritos man says kept him awake at night. The ...
Electronic Design

Power Transformer Attenuates Harmonics

The mains of the world were constructed as a giant copper causeway to transport electricity from the generating station to our homes and factories. Today's problems on the mains were unknown a few ...
Nature

Common-Mode Noise Reduction in Power Converters

Common-mode noise reduction has emerged as a critical focus in the development of power converters, addressing challenges associated with electromagnetic interference (EMI) that can impair both ...
EDN

Accurately predict measured noise figures for transformer coupled differential amplifiers (Part 2 of 2)

Using a transformer-coupled differential inverting amplifier stage can give a very low input referred noise voltage or Noise Figure (NF) with exceptional SFDR/mW of power. Modern FDA’s can deliver ...