CN103532352B - 用于消除开关电源轻载音频噪声的控制电路和控制方法 - Google Patents
用于消除开关电源轻载音频噪声的控制电路和控制方法 Download PDFInfo
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- CN103532352B CN103532352B CN201310511338.9A CN201310511338A CN103532352B CN 103532352 B CN103532352 B CN 103532352B CN 201310511338 A CN201310511338 A CN 201310511338A CN 103532352 B CN103532352 B CN 103532352B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 13
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CN103532352B true CN103532352B (zh) | 2016-01-06 |
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JP2016027775A (ja) * | 2014-06-27 | 2016-02-18 | サンケン電気株式会社 | スイッチング電源装置 |
US9800152B2 (en) * | 2015-07-06 | 2017-10-24 | Qualcomm Incorporated | Voltage regulator having auto mode optimized for load profiles |
CN106374742B (zh) * | 2016-11-08 | 2019-04-09 | 上海贝岭股份有限公司 | 开关电源输出频率调节电路 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1179884B1 (en) * | 2000-08-08 | 2004-06-02 | Power Integrations, Inc. | Method and apparatus for reducing audio noise in a switching regulator |
CN101183830A (zh) * | 2006-10-04 | 2008-05-21 | 电力集成公司 | 具有多种操作模式的控制电路的方法和装置 |
CN101552560A (zh) * | 2009-01-13 | 2009-10-07 | 成都芯源系统有限公司 | 一种开关稳压电路及其控制方法 |
CN101645656A (zh) * | 2009-09-01 | 2010-02-10 | 成都芯源系统有限公司 | 电流峰值压缩方法及采用该方法的控制电路 |
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JP5507980B2 (ja) * | 2009-11-27 | 2014-05-28 | スパンション エルエルシー | スイッチング電源の制御回路、電子機器、及びスイッチング電源の制御方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1179884B1 (en) * | 2000-08-08 | 2004-06-02 | Power Integrations, Inc. | Method and apparatus for reducing audio noise in a switching regulator |
CN101183830A (zh) * | 2006-10-04 | 2008-05-21 | 电力集成公司 | 具有多种操作模式的控制电路的方法和装置 |
CN101552560A (zh) * | 2009-01-13 | 2009-10-07 | 成都芯源系统有限公司 | 一种开关稳压电路及其控制方法 |
CN101645656A (zh) * | 2009-09-01 | 2010-02-10 | 成都芯源系统有限公司 | 电流峰值压缩方法及采用该方法的控制电路 |
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