CN110505729B - 改善led调光深度的调制电路及其调制方法 - Google Patents
改善led调光深度的调制电路及其调制方法 Download PDFInfo
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- CN110505729B CN110505729B CN201810481209.2A CN201810481209A CN110505729B CN 110505729 B CN110505729 B CN 110505729B CN 201810481209 A CN201810481209 A CN 201810481209A CN 110505729 B CN110505729 B CN 110505729B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 74
- 238000007599 discharging Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 238000005070 sampling Methods 0.000 description 6
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- 230000001276 controlling effect Effects 0.000 description 3
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- 230000033228 biological regulation Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1370035A (zh) * | 2001-02-08 | 2002-09-18 | 精工电子有限公司 | Led驱动电路 |
CN1738189A (zh) * | 2004-04-29 | 2006-02-22 | 线性技术公司 | 用于降低开关调节器的频谱噪声的频率调制方法和电路 |
CN101917123A (zh) * | 2010-09-06 | 2010-12-15 | Bcd半导体制造有限公司 | 具有内置线性降频的pwm控制器和pwm控制电路 |
CN102013882A (zh) * | 2009-09-08 | 2011-04-13 | 辉芒微电子(深圳)有限公司 | 一种振荡器及使用所述振荡器的开关电源控制系统 |
CN103166459A (zh) * | 2011-12-14 | 2013-06-19 | 上海北京大学微电子研究院 | 频率控制器和开关电源频率控制方法 |
CN104244538A (zh) * | 2014-10-10 | 2014-12-24 | 无锡华润矽科微电子有限公司 | 智能功率控制电路 |
CN105101514A (zh) * | 2014-05-21 | 2015-11-25 | 昆山启达微电子有限公司 | 一种用于led照明的模拟调光电路 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8704450B2 (en) * | 2010-02-26 | 2014-04-22 | Triune Ip, Llc | Flash LED controller |
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- 2018-05-18 CN CN201810481209.2A patent/CN110505729B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1370035A (zh) * | 2001-02-08 | 2002-09-18 | 精工电子有限公司 | Led驱动电路 |
CN1738189A (zh) * | 2004-04-29 | 2006-02-22 | 线性技术公司 | 用于降低开关调节器的频谱噪声的频率调制方法和电路 |
CN102013882A (zh) * | 2009-09-08 | 2011-04-13 | 辉芒微电子(深圳)有限公司 | 一种振荡器及使用所述振荡器的开关电源控制系统 |
CN101917123A (zh) * | 2010-09-06 | 2010-12-15 | Bcd半导体制造有限公司 | 具有内置线性降频的pwm控制器和pwm控制电路 |
CN103166459A (zh) * | 2011-12-14 | 2013-06-19 | 上海北京大学微电子研究院 | 频率控制器和开关电源频率控制方法 |
CN105101514A (zh) * | 2014-05-21 | 2015-11-25 | 昆山启达微电子有限公司 | 一种用于led照明的模拟调光电路 |
CN104244538A (zh) * | 2014-10-10 | 2014-12-24 | 无锡华润矽科微电子有限公司 | 智能功率控制电路 |
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Denomination of invention: Modulation Circuit and Method for Improving LED Dimming Depth Effective date of registration: 20231008 Granted publication date: 20211130 Pledgee: Bank of China Limited Wuxi Branch Pledgor: China Resources micro integrated circuit (Wuxi) Co.,Ltd. Registration number: Y2023980060027 |
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