Статьи - Аудио

Federico Coppede

This article describes a technique to compensate the DC voltage drift in the output of a directly-coupled AB-Class audio power amplifier. The main benefit of a directly-coupled output is improved bass response. Since the design eliminates the ...

Noël Boutin

A Zobel network is useful in making a reactive load appear as a pure resistance to a driving source prone to stability problems ( Reference 1 ). A typical situation is an audio power amplifier driving a loudspeaker, modeled at first approximation ...

Lianne Frith

Before his name became a brand and a household word, Ray Dolby was a pioneer in noise reduction technology. His innovations revolutionized the audio and entertainment industries. Even today, the name Dolby is synonymous with multi-channel surround ...

Youhao Xi

Audio amplifiers for high-power portable speakers such as trolley speakers usually operate with lithium-ion batteries, and these batteries can vary from a single cell to a few cells in series. Designers generally use boost converters to produce the ...

John Dunn

As a youngster, I saw some really old radios; the kind that occupied highly-polished wooden cabinets the size of a refrigerator. When those old radios were made, permanent magnets were not all that powerful, at least by today’s standards, and ...

John Dunn

There was an interesting article in the January 1961 issue of Popular Electronics, “Sweet Sixteen” by Jim Kyle. It was followed up in April 1961 with a second article entitled “Sweeter With A Tweeter.” You can find some ...