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Designing audio amp power supply

Posted: 22 Dec 2010     Print Version  Bookmark and Share

Keywords:input stage ICs  Switch mode  National Semiconductor 

This application note provides design information for a power supply for use with National Semiconductor's offering of audio amplifier input stage ICs.

Analog audio circuit power supplies can have an audible effect in listening test and quantifiable effect in bench measurement results. Power supply designs that operate from the power mains are of three common types: Switch mode (SMPS), regulated, and unregulated power supplies.

Switch mode power supplies have become very popular, common, inexpensive, and readily available. SMPS are used extensively in computer hardware. They are well suited for such use providing good regulation with high efficiency in a small physical size.

View the PDF document for more information.

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