CN100471044C - 抑制d类功率放大器pop音的频率切换电路及其方法 - Google Patents
抑制d类功率放大器pop音的频率切换电路及其方法 Download PDFInfo
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- CN100471044C CN100471044C CNB2007100379022A CN200710037902A CN100471044C CN 100471044 C CN100471044 C CN 100471044C CN B2007100379022 A CNB2007100379022 A CN B2007100379022A CN 200710037902 A CN200710037902 A CN 200710037902A CN 100471044 C CN100471044 C CN 100471044C
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- frequency
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- pop sound
- power amplifier
- switching circuit
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CNB2007100379022A CN100471044C (zh) | 2007-03-08 | 2007-03-08 | 抑制d类功率放大器pop音的频率切换电路及其方法 |
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CNB2007100379022A CN100471044C (zh) | 2007-03-08 | 2007-03-08 | 抑制d类功率放大器pop音的频率切换电路及其方法 |
Publications (2)
Publication Number | Publication Date |
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CN101018041A CN101018041A (zh) | 2007-08-15 |
CN100471044C true CN100471044C (zh) | 2009-03-18 |
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CNB2007100379022A Expired - Fee Related CN100471044C (zh) | 2007-03-08 | 2007-03-08 | 抑制d类功率放大器pop音的频率切换电路及其方法 |
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101729030B (zh) * | 2008-10-20 | 2013-09-11 | 立锜科技股份有限公司 | D类放大器及其控制方法 |
TWI403181B (zh) | 2009-06-23 | 2013-07-21 | Richtek Technology Corp | 斷電延遲電路與方法,以及具斷電延遲的音響系統 |
CN103368541A (zh) * | 2009-07-15 | 2013-10-23 | 立锜科技股份有限公司 | 断电延迟电路与方法,以及具断电延迟的音响系统 |
CN101958701B (zh) * | 2009-07-15 | 2014-07-09 | 立锜科技股份有限公司 | 断电延迟电路与方法 |
JP5633163B2 (ja) | 2010-03-18 | 2014-12-03 | ヤマハ株式会社 | D級電力増幅装置 |
CN103379411A (zh) * | 2012-04-13 | 2013-10-30 | 立锜科技股份有限公司 | 降低音频系统启动或关闭时的瞬变信号的控制装置及方法 |
TWI482505B (zh) * | 2012-09-19 | 2015-04-21 | Wistron Corp | 揚聲器控制系統 |
US9467095B2 (en) * | 2014-10-13 | 2016-10-11 | Intel Corporation | Switchable dual core power amplifier |
US9543899B2 (en) * | 2014-11-10 | 2017-01-10 | Microchip Technology Incorporated | Class D power driver peripheral |
WO2016083081A1 (en) * | 2014-11-26 | 2016-06-02 | Bang & Olufsen Icepower A/S | A system and method for close-down pop reduction |
CN109537183A (zh) * | 2018-11-20 | 2019-03-29 | 浙江众邦机电科技有限公司 | 一种缝纫机的压脚控制方法、装置、介质及设备 |
CN109610106B (zh) * | 2019-01-22 | 2021-12-24 | 浙江众邦机电科技有限公司 | 一种缝纫机电磁铁的控制方法及系统 |
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2007
- 2007-03-08 CN CNB2007100379022A patent/CN100471044C/zh not_active Expired - Fee Related
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CN101018041A (zh) | 2007-08-15 |
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Address after: 201203 No. 18, building 572, 115 lane, Zhangjiang Road, Zhangjiang, Shanghai, Pudong Co-patentee after: Apexone Microelectronics Co., Ltd. Patentee after: Apexone Microelectronics (Shanghai) Co., Ltd. Address before: 201203 No. 18, building 572, 115 lane, Zhangjiang Road, Zhangjiang, Shanghai, Pudong Co-patentee before: Apexone Microelectronics Co., Ltd. Patentee before: Apexone Microelectronics (Shanghai)Co., Ltd. |
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Addressee: Apexone Microelectronics (Shanghai) Co., Ltd. Document name: Notification to Pay the Fees |
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Addressee: Apexone Microelectronics (Shanghai) Co., Ltd. Document name: Notification of Termination of Patent Right |
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Granted publication date: 20090318 Termination date: 20140308 |