发明申请
- 专利标题： Thermal Control of Voice Coils in Loudspeakers
- 专利标题（中）： 扬声器中音圈的热控制
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申请号： US13247538申请日： 2011-09-28
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公开(公告)号： US20130077794A1公开(公告)日： 2013-03-28
- 发明人: Lars Risbo , Milind Anil Borkar , Theis Buchwald Christiansen
- 申请人： Lars Risbo , Milind Anil Borkar , Theis Buchwald Christiansen
- 申请人地址： US TX Dallas
- 专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人地址： US TX Dallas
- 主分类号： H03G11/00
- IPC分类号： H03G11/00
摘要：
In an embodiment of the invention, the voice coil of an electro dynamic transducer is protected against thermal overload by estimating the temperature of a magnet in the electro dynamic transducer. When a power limit based on the temperature of the magnet and on a predetermined voice coil temperature limit is reached by an audio signal, the power applied to the voice coil is reduced.
公开/授权文献
- US08774419B2 Thermal control of voice coils in loudspeakers 公开/授权日：2014-07-08
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