CN102946578A - 一种免开关pop声的音频耳机放大器 - Google Patents
一种免开关pop声的音频耳机放大器 Download PDFInfo
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- CN102946578A CN102946578A CN2012104844077A CN201210484407A CN102946578A CN 102946578 A CN102946578 A CN 102946578A CN 2012104844077 A CN2012104844077 A CN 2012104844077A CN 201210484407 A CN201210484407 A CN 201210484407A CN 102946578 A CN102946578 A CN 102946578A
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CN201210484407.7A CN102946578B (zh) | 2012-11-26 | 2012-11-26 | 一种免开关pop声的音频耳机放大器 |
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CN201210484407.7A CN102946578B (zh) | 2012-11-26 | 2012-11-26 | 一种免开关pop声的音频耳机放大器 |
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CN102946578A true CN102946578A (zh) | 2013-02-27 |
CN102946578B CN102946578B (zh) | 2016-03-02 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104348422A (zh) * | 2013-08-01 | 2015-02-11 | 无锡华润矽科微电子有限公司 | 实现消除音频功率放大器开关噪声的电路结构及其方法 |
CN105554634A (zh) * | 2015-12-31 | 2016-05-04 | 苏州芯动科技有限公司 | 一种音频输出pop声消除电路 |
CN107371093A (zh) * | 2017-07-27 | 2017-11-21 | 广东长虹电子有限公司 | 一种音频放大电路 |
CN111464917A (zh) * | 2017-04-28 | 2020-07-28 | 华为技术有限公司 | 一种pop音的抑制方法、音频输出电路和终端 |
CN112954546A (zh) * | 2021-02-01 | 2021-06-11 | 广州朗国电子科技有限公司 | 一种上电下电去爆破音的控制电路、模块及终端设备 |
Citations (4)
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CN1217864A (zh) * | 1997-02-24 | 1999-05-26 | 韩国科学技术院 | 与数字放大器结合的高保真和高效率的模拟放大器 |
CN1688179A (zh) * | 2005-03-22 | 2005-10-26 | 东莞理工学院 | 反馈式主动消噪耳机 |
US20070273446A1 (en) * | 2006-05-23 | 2007-11-29 | Samsung Electronics Co., Ltd. | Automatic input-gain control circuit and method thereof |
CN101958690A (zh) * | 2009-07-17 | 2011-01-26 | 上海沙丘微电子有限公司 | D类音频功率放大器电路 |
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- 2012-11-26 CN CN201210484407.7A patent/CN102946578B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1217864A (zh) * | 1997-02-24 | 1999-05-26 | 韩国科学技术院 | 与数字放大器结合的高保真和高效率的模拟放大器 |
CN1688179A (zh) * | 2005-03-22 | 2005-10-26 | 东莞理工学院 | 反馈式主动消噪耳机 |
US20070273446A1 (en) * | 2006-05-23 | 2007-11-29 | Samsung Electronics Co., Ltd. | Automatic input-gain control circuit and method thereof |
CN101958690A (zh) * | 2009-07-17 | 2011-01-26 | 上海沙丘微电子有限公司 | D类音频功率放大器电路 |
Non-Patent Citations (1)
Title |
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常祥岭: "AB类音频功率放大器设计", 《复旦大学硕士学位论文》 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104348422A (zh) * | 2013-08-01 | 2015-02-11 | 无锡华润矽科微电子有限公司 | 实现消除音频功率放大器开关噪声的电路结构及其方法 |
CN105554634A (zh) * | 2015-12-31 | 2016-05-04 | 苏州芯动科技有限公司 | 一种音频输出pop声消除电路 |
CN105554634B (zh) * | 2015-12-31 | 2018-09-28 | 苏州芯动科技有限公司 | 一种音频输出pop声消除电路 |
CN111464917A (zh) * | 2017-04-28 | 2020-07-28 | 华为技术有限公司 | 一种pop音的抑制方法、音频输出电路和终端 |
CN111464917B (zh) * | 2017-04-28 | 2022-04-22 | 华为技术有限公司 | 一种pop音的抑制方法、音频输出电路和终端 |
CN107371093A (zh) * | 2017-07-27 | 2017-11-21 | 广东长虹电子有限公司 | 一种音频放大电路 |
CN112954546A (zh) * | 2021-02-01 | 2021-06-11 | 广州朗国电子科技有限公司 | 一种上电下电去爆破音的控制电路、模块及终端设备 |
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CN102946578B (zh) | 2016-03-02 |
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Address after: 610041 floor 4, block A, 1 building 200, Tianfu five street, hi tech Zone, Chengdu, Sichuan. Patentee after: Chengdu Rui core micro Polytron Technologies Inc Address before: 610041 room 1705, G1 building, 1800 Yizhou Road, Chengdu high tech Zone, Sichuan. Patentee before: Chengdu Ruicheng Xinwei Technology Co., Ltd. |
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Denomination of invention: Amplifier free of POP sound during on and off for audio headphone Effective date of registration: 20190311 Granted publication date: 20160302 Pledgee: Agricultural Bank of China Limited by Share Ltd Chengdu Shuangliu Branch Pledgor: Chengdu Rui core micro Polytron Technologies Inc Registration number: 2019510000025 |
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Date of cancellation: 20210226 Granted publication date: 20160302 Pledgee: Agricultural Bank of China Limited by Share Ltd. Chengdu Shuangliu Branch Pledgor: CHENGDU ANALOG CIRCUIT TECHNOLOGY Inc. Registration number: 2019510000025 |
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