Departmental Bulletin Paper フルデジタル駆動方式を用いたパラメトリックスピーカに関する研究

戸野村, 厚樹

57pp.1 - 6 , 2016-03-24 , 法政大学大学院紀要 理工学・工学研究科編
The parametric loudspeaker is a low power efficiency due to driven by a high voltage. A highly efficient driving circuit for parametric loudspeaker using a full digital driving method while maintaining high sound quality is proposed in this paper. In the proposed system the power conversion efficiency at 12V supply driving is improved to 94%. This approach has improved efficiency in comparison to conventional analog system. Key Words : parametric loudspeaker, low power efficiency

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