CN103326680A - D类音频功率放大器及其音频信号处理方法 - Google Patents
D类音频功率放大器及其音频信号处理方法 Download PDFInfo
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104104343A (zh) * | 2014-07-10 | 2014-10-15 | 矽力杰半导体技术(杭州)有限公司 | 应用于d类音频放大器的三角波产生方法及电路 |
CN104184425A (zh) * | 2014-08-01 | 2014-12-03 | 矽力杰半导体技术(杭州)有限公司 | 单端输入的d类音频功率放大器 |
CN105120395A (zh) * | 2015-07-30 | 2015-12-02 | 苏州玄禾物联网科技有限公司 | 基于低噪音放大电路的wifi音箱 |
CN106656085A (zh) * | 2017-01-20 | 2017-05-10 | 深圳市中移联半导体科技有限公司 | 一种增益控制装置 |
CN106656065A (zh) * | 2016-11-16 | 2017-05-10 | 上海艾为电子技术股份有限公司 | 音频功率放大器和音频设备 |
WO2017185563A1 (zh) * | 2016-04-25 | 2017-11-02 | 深圳市纳芯威科技有限公司 | 一种 d 类音频功率放大器、芯片及其失真检测电路 |
WO2018120072A1 (en) * | 2016-12-30 | 2018-07-05 | Texas Instruments Incorporated | Total harmonic distortion (thd) controlled clip detector and automatic gain limiter (agl) |
CN112543000A (zh) * | 2020-11-09 | 2021-03-23 | 武汉市聚芯微电子有限责任公司 | 供电电路、方法、音频功率放大器和集成电路 |
CN114793313A (zh) * | 2022-01-14 | 2022-07-26 | 电子科技大学 | 一种具有PSRR增强的Class D音频功放芯片 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102811027A (zh) * | 2011-05-30 | 2012-12-05 | 嘉兴禾润电子科技有限公司 | D类音频功率放大器及其音频信号处理方法 |
CN102983825A (zh) * | 2012-11-16 | 2013-03-20 | 上海贝岭股份有限公司 | 一种d类功放芯片 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102811027A (zh) * | 2011-05-30 | 2012-12-05 | 嘉兴禾润电子科技有限公司 | D类音频功率放大器及其音频信号处理方法 |
CN102983825A (zh) * | 2012-11-16 | 2013-03-20 | 上海贝岭股份有限公司 | 一种d类功放芯片 |
Non-Patent Citations (1)
Title |
---|
胡养聪: "无滤波2.5W D类音频功率放大器设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104104343A (zh) * | 2014-07-10 | 2014-10-15 | 矽力杰半导体技术(杭州)有限公司 | 应用于d类音频放大器的三角波产生方法及电路 |
CN104104343B (zh) * | 2014-07-10 | 2017-09-29 | 矽力杰半导体技术(杭州)有限公司 | 应用于d类音频放大器的三角波产生方法及电路 |
CN104184425B (zh) * | 2014-08-01 | 2017-11-07 | 矽力杰半导体技术(杭州)有限公司 | 单端输入的d类音频功率放大器 |
CN104184425A (zh) * | 2014-08-01 | 2014-12-03 | 矽力杰半导体技术(杭州)有限公司 | 单端输入的d类音频功率放大器 |
CN105120395A (zh) * | 2015-07-30 | 2015-12-02 | 苏州玄禾物联网科技有限公司 | 基于低噪音放大电路的wifi音箱 |
WO2017185563A1 (zh) * | 2016-04-25 | 2017-11-02 | 深圳市纳芯威科技有限公司 | 一种 d 类音频功率放大器、芯片及其失真检测电路 |
CN106656065A (zh) * | 2016-11-16 | 2017-05-10 | 上海艾为电子技术股份有限公司 | 音频功率放大器和音频设备 |
US10079578B2 (en) | 2016-12-30 | 2018-09-18 | Texas Instruments Incorporated | Total harmonic distortion (THD) controlled clip detector and automatic gain limiter (AGL) |
WO2018120072A1 (en) * | 2016-12-30 | 2018-07-05 | Texas Instruments Incorporated | Total harmonic distortion (thd) controlled clip detector and automatic gain limiter (agl) |
US10476446B2 (en) | 2016-12-30 | 2019-11-12 | Texas Instruments Incorporated | Total harmonic distortion (THD) controlled clip detector and automatic gain limiter (AGL) |
CN106656085A (zh) * | 2017-01-20 | 2017-05-10 | 深圳市中移联半导体科技有限公司 | 一种增益控制装置 |
CN112543000A (zh) * | 2020-11-09 | 2021-03-23 | 武汉市聚芯微电子有限责任公司 | 供电电路、方法、音频功率放大器和集成电路 |
CN112543000B (zh) * | 2020-11-09 | 2022-02-15 | 武汉市聚芯微电子有限责任公司 | 供电电路、方法、音频功率放大器和集成电路 |
CN114793313A (zh) * | 2022-01-14 | 2022-07-26 | 电子科技大学 | 一种具有PSRR增强的Class D音频功放芯片 |
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