CN103675425B - 一种自适应的反激式开关电源准谐振波谷检测电路 - Google Patents
一种自适应的反激式开关电源准谐振波谷检测电路 Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
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Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104702117B (zh) * | 2014-12-26 | 2018-09-18 | 矽力杰半导体技术(杭州)有限公司 | 反激变换电路、适用该电路的开关控制电路、谷底检测电路及方法 |
CN105262333B (zh) * | 2015-12-02 | 2017-11-03 | 成都启臣微电子股份有限公司 | 一种准谐振反激式控制器及控制方法 |
CN107809830B (zh) * | 2017-12-06 | 2024-05-24 | 无锡恒芯微科技有限公司 | 一种Buck-boost LED驱动电路 |
CN109001523B (zh) * | 2018-08-02 | 2020-11-20 | 西安鼎芯微电子有限公司 | 交流变直流转换器的波谷检测装置 |
CN109444524B (zh) * | 2018-09-30 | 2021-06-08 | 广州金升阳科技有限公司 | 一种原边绕组谐振波谷采样电路及采样方法 |
CN109302075B (zh) * | 2018-11-02 | 2024-09-17 | 杰华特微电子股份有限公司 | 检测电路和方法、开关控制电路以及反激变换电路 |
CN109660129A (zh) * | 2018-12-29 | 2019-04-19 | 杰华特微电子(杭州)有限公司 | 检测电路和方法、开关控制电路及反激变换电路 |
US10804805B1 (en) * | 2019-04-12 | 2020-10-13 | Silanna Asia Pte Ltd | Quasi-resonant auto-tuning controller |
CN110095648A (zh) * | 2019-04-15 | 2019-08-06 | 深圳市致宸信息科技有限公司 | 一种llc拓扑开关电源输入功率检测装置及方法 |
CN113595370B (zh) * | 2021-07-23 | 2022-12-06 | 成都启臣微电子股份有限公司 | 动态跟踪准谐振谷底导通电路、方法及原边反馈开关电源 |
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US6958920B2 (en) * | 2003-10-02 | 2005-10-25 | Supertex, Inc. | Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic flux |
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CN102307019A (zh) * | 2011-08-12 | 2012-01-04 | 浙江昱能光伏科技集成有限公司 | 逆变器的准谐振控制电路 |
CN202837384U (zh) * | 2012-09-18 | 2013-03-27 | 张翌 | 一种自适应的反激式开关电源准谐振波谷检测电路 |
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TW200824240A (en) * | 2006-11-24 | 2008-06-01 | Richtek Technology Corp | A waveform valley estimation circuit of a switching component and the method thereof |
JP2009100557A (ja) * | 2007-10-17 | 2009-05-07 | Kawasaki Microelectronics Kk | 電源装置及びこの電源装置のスイッチング方法 |
CN102082521B (zh) * | 2010-10-29 | 2013-01-09 | 西安英洛华微电子有限公司 | 谐振波谷精确侦测电路 |
CN102121950A (zh) * | 2010-12-21 | 2011-07-13 | 厦门拓能信息科技有限公司 | 一种自适应交流电压过零点检测的方法 |
CN102243263B (zh) * | 2011-04-08 | 2015-05-13 | 苏州路之遥科技股份有限公司 | 一种交流电流值检测及电流过零点检测电路 |
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Patent Citations (5)
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US6958920B2 (en) * | 2003-10-02 | 2005-10-25 | Supertex, Inc. | Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic flux |
CN101498747A (zh) * | 2008-12-25 | 2009-08-05 | 四川登巅微电子有限公司 | 一种波峰波谷检测方法和电路 |
CN102097960A (zh) * | 2010-10-01 | 2011-06-15 | 崇贸科技股份有限公司 | 功率转换器的控制器以及准谐振功率转换器的控制方法 |
CN102307019A (zh) * | 2011-08-12 | 2012-01-04 | 浙江昱能光伏科技集成有限公司 | 逆变器的准谐振控制电路 |
CN202837384U (zh) * | 2012-09-18 | 2013-03-27 | 张翌 | 一种自适应的反激式开关电源准谐振波谷检测电路 |
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