This paper proposes the method to synthesis vacuum-tube audio amplifiers that using the electronic DC transformers to replace the traditional audio-frequency output transformers usually used in the output stage of the amplifier. The proposed amplifiers can achieve the frequency response from DC-100kHz if the DC transformers operated at 400 kHz switching frequency and interleave technique are used. The principle of operation, DC model and various examples are given.

Authors: Jirasereeamornkul, Kamon; Kazimierczuk, Marian K.; Poomalee, Theeraphat
Affiliations: King Mongkut's University of Technology Thonburi, Tung-kru, Bankok, Thailand; Wright State University, Dayton, OH, USA(See document for exact affiliation information.)
AES Convention: 129 (November 2010) Paper Number: 8228
Publication Date: November 4, 2010
Subject: Audio Equipment and Measurement

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