TW202418755A - 音訊放大裝置與方法 - Google Patents
音訊放大裝置與方法 Download PDFInfo
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- TW202418755A TW202418755A TW111140524A TW111140524A TW202418755A TW 202418755 A TW202418755 A TW 202418755A TW 111140524 A TW111140524 A TW 111140524A TW 111140524 A TW111140524 A TW 111140524A TW 202418755 A TW202418755 A TW 202418755A
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- 238000001514 detection method Methods 0.000 abstract 6
Abstract
一種音訊放大裝置，用來處理一差動輸入訊號，以提供一差動輸出訊號給一平衡式耳機。該裝置包含一訊號偵測電路、一電壓供應電路與一放大電路。該訊號偵測電路偵測該差動輸入訊號的振幅的變化，以產生一偵測結果。該電壓供應電路依據該偵測結果，輸出複數種電壓的其中之一作為一供應電壓；當該偵測結果指出該差動輸入訊號的振幅滿足一第一條件時，該供應電壓為一第一電壓；當該偵測結果指出該差動輸入訊號的振幅滿足一第二條件時，該供應電壓為一第二電壓，其中該第二電壓低於該第一電壓，且滿足該第一條件之該差動輸入訊號的振幅大於滿足該第二條件之該差動輸入訊號的振幅。該放大電路依據該供應電壓處理該差動輸入訊號，以產生該差動輸出訊號。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111140524A TWI826071B (zh) | 2022-10-25 | 2022-10-25 | 音訊放大裝置與方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| TW111140524A TWI826071B (zh) | 2022-10-25 | 2022-10-25 | 音訊放大裝置與方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI826071B TWI826071B (zh) | 2023-12-11 |
| TW202418755A true TW202418755A (zh) | 2024-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW111140524A TWI826071B (zh) | 2022-10-25 | 2022-10-25 | 音訊放大裝置與方法 |
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| Country | Link |
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| TW (1) | TWI826071B (zh) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929702A (en) * | 1997-11-28 | 1999-07-27 | Motorola, Inc. | Method and apparatus for high efficiency high dynamic range power amplification |
| US6937094B2 (en) * | 2002-11-22 | 2005-08-30 | Powerwave Technologies, Inc. | Systems and methods of dynamic bias switching for radio frequency power amplifiers |
| US8265572B2 (en) * | 2009-12-21 | 2012-09-11 | Ubidyne, Inc. | Multiple envelope tracking system for an active antenna array |
| WO2012111100A1 (ja) * | 2011-02-16 | 2012-08-23 | 富士通株式会社 | 増幅装置 |
| US9563211B2 (en) * | 2013-04-18 | 2017-02-07 | Ati Technologies Ulc | Multiple output charge pump with peak voltage following frequency divider control |
| US9065509B1 (en) * | 2014-01-09 | 2015-06-23 | Mediatek Inc. | Methods and apparatus for envelope tracking system |
| US9559642B2 (en) * | 2015-01-02 | 2017-01-31 | Logitech Europe, S.A. | Audio delivery system having an improved efficiency and extended operation time between recharges or battery replacements |
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2022
- 2022-10-25 TW TW111140524A patent/TWI826071B/zh active
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