19 Oct '15, 6pm

NEW Blog post via @element14 "Quiet switching #controller for audio amplifiers" #WE_eiSos

Analog amplifiers are still used in entertainment electronics, especially in the audio range. Switching controllers are now increasingly used as their power supplies, as they attain high efficiency. These are switched circuits that include various sources of interference and may lead to various types of electromagnetic interference. Classical interference, such as line-bound interference, is not always the main problem in every circuit. In analog amplification circuits, switching controllers can cause non-linear distortions. Nonetheless, even analog circuits can be supplied with switching controllers, provided attention is paid to filtering of interference and the design of their circuit boards. However, filters are not all the same. Different filter coils are considered depending on the frequency associated with the interference. Wire coils with a relatively low self-reso...

Full article: http://www.element14.com/community/docs/DOC-65491/l/quiet...

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#Anadigics adds surface-mount line amplifiers t...

semiconductor-today.com 19 Oct '15, 6pm

Broadband wireless and wireline communications component maker Anadigics Inc of Warren, NJ, USA has introduced six surface...