대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

소프트 스위칭 기술을 이용한 오디오용 파워앰프

ZVT-PWM Amplifier for Audio Applications

  • Seo, D.H. (School of Electrical Engineering, Seoul National University) ;
  • Cho, B.H. (School of Electrical Engineering, Seoul National University)
  • 발행 : 1998.07.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a Class-D type switched mode audio power amplifier employing ZVT(Zero-Voltage-Transition) soft switching technique. In order to obtain a wide bandwidth and lower distortion for an audio amplifier a high switching frequency is essential. The ZVT switching scheme enables a high frequency switching without sacrificing the efficiency much as in a hard switching. A prototype amplifier is built to demonstrate the feasibility of this technique for the audio power amplifier.

키워드