JP6895502B2 - 調光回路及び調光制御方法 - Google Patents
調光回路及び調光制御方法 Download PDFInfo
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- JP6895502B2 JP6895502B2 JP2019199995A JP2019199995A JP6895502B2 JP 6895502 B2 JP6895502 B2 JP 6895502B2 JP 2019199995 A JP2019199995 A JP 2019199995A JP 2019199995 A JP2019199995 A JP 2019199995A JP 6895502 B2 JP6895502 B2 JP 6895502B2
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2176—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only comprising a passive stage to generate a rectified sinusoidal voltage and a controlled switching element in series between such stage and the output
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Dc-Dc Converters (AREA)
Description
Claims (9)
- 調光回路のための調光制御方法であって、
前記調光回路はDC/DCコンバータユニットを備え、
前記DC/DCコンバータユニットは、入力電圧を受け、負荷に出力電圧を供給し、
前記調光制御方法は、
スイッチング周期基準を提供する工程、
前記入力電圧及び前記出力電圧をサンプリングして、前記入力電圧、前記出力電圧、及び基準電流信号に応じてターンオン時間を算出する工程、
周期的に変化する変動周期信号を提供する工程、
前記スイッチング周期基準、前記ターンオン時間及び前記変動周期信号に応じて、パルス幅変調信号を生成する工程、及び
前記パルス幅変調信号に応じてスイッチ制御信号を生成する工程を含み、
前記スイッチ制御信号は複数のスイッチング周期を有し、
各複数のスイッチング周期はターンオン時間及びターンオフ時間を有する、方法。 - 請求項1に記載の調光制御方法であって、周期的に変化する前記複数のスイッチング周期を制御するために、前記変動周期信号が、前記スイッチング周期基準と組み合わせられる、方法。
- 請求項1に記載の調光制御方法であって、周期的に変化する前記複数のスイッチング周期を制御するために、前記変動周期信号が、前記ターンオン時間と組み合わせられる、方法。
- 請求項1に記載の調光制御方法であって、前記DC/DCコンバータユニットは、ダイオードと、インダクタとを備え、
前記ダイオードと、前記インダクタは、電源スイッチに電気的に接続され、
前記電源スイッチがオフにされ、かつ、前記ダイオードがオフにされたとき、前記電源スイッチの第一の寄生容量は、前記インダクタで発振し、前記ダイオードの第二の寄生容量は前記インダクタで発振し、
前記インダクタと前記第一の寄生容量と前記第二の寄生容量との間で生じる前記発振は、発振周期を有し、前記発振周期は以下の式で表され、
Lは前記インダクタのインダクタンスであり、Cは前記第一の寄生容量と前記第二の寄生容量との合計容量であり、Tcは前記発振周期である、方法。
- 請求項4に記載の調光制御方法であって、前記変動周期信号に応じて、最小スイッチング周期は、(Ts−Tc/2)に等しく、最大スイッチング周期は、(Ts+Tc/2)に等しく、Tsは、前記スイッチング周期基準である、方法。
- 請求項5に記載の調光制御方法であって、前記変動周期信号の変動のトレンドは、周期的な三角波形である、方法。
- 請求項6に記載の調光制御方法であって、各スイッチング周期は、その前のスイッチング周期に対して、設定変動の分だけ変化し、前記設定変動はTc/nであり、nは2以上の整数である、方法。
- 請求項5に記載の調光制御方法であって、前記変動周期信号の変動のトレンドは、周期的な正弦波形である、方法。
- 請求項1に記載の調光制御方法であって、調光信号を受信し、前記調光信号に応じて、前記基準電流信号を生成する工程を更に含む、方法。
Applications Claiming Priority (2)
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CN201811325721.4 | 2018-11-08 | ||
CN201811325721.4A CN111182676B (zh) | 2018-11-08 | 2018-11-08 | 调光电路及调光控制方法 |
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JP2020077636A JP2020077636A (ja) | 2020-05-21 |
JP6895502B2 true JP6895502B2 (ja) | 2021-06-30 |
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US (1) | US11665794B2 (ja) |
JP (1) | JP6895502B2 (ja) |
CN (1) | CN111182676B (ja) |
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US11742750B2 (en) | 2021-10-11 | 2023-08-29 | Halo Microelectronics International | Boost converter apparatus and control method |
CN114126133B (zh) * | 2021-11-10 | 2024-04-16 | 广电计量检测集团股份有限公司 | 一种脉宽调制灯具亮度变化的自动监控装置 |
CN113972839B (zh) * | 2021-12-27 | 2022-03-11 | 广东希荻微电子股份有限公司 | 升压转换器的控制方法、控制器及功率转换装置 |
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US6980441B2 (en) * | 2003-07-28 | 2005-12-27 | Astec International Limited | Circuit and method for controlling a synchronous rectifier in a power converter |
JP4573697B2 (ja) * | 2005-05-09 | 2010-11-04 | ローム株式会社 | スイッチングレギュレータ及びこれを備えた電子機器 |
US7388764B2 (en) | 2005-06-16 | 2008-06-17 | Active-Semi International, Inc. | Primary side constant output current controller |
JP5659556B2 (ja) | 2010-05-18 | 2015-01-28 | 東芝ライテック株式会社 | 点灯制御装置及び照明装置 |
CN103313472B (zh) * | 2010-05-19 | 2016-02-03 | 成都芯源系统有限公司 | 一种具有调光功能的led驱动电路及灯具 |
US9684326B2 (en) * | 2013-02-01 | 2017-06-20 | Alpha And Omega Semiconductor Incorporated | Method and circuit for detecting short circuit in an asynchronous DC-DC boost converter |
CN104582101A (zh) | 2013-10-18 | 2015-04-29 | 凹凸电子(武汉)有限公司 | 光源驱动电路、控制提供给光源的电能的控制器及方法 |
CN103746560B (zh) | 2013-12-16 | 2017-03-22 | 联合汽车电子有限公司 | 移相全桥型dc/dc变换器的控制电路 |
JP6273863B2 (ja) | 2014-01-27 | 2018-02-07 | 三菱電機株式会社 | 照明器具 |
JP6273896B2 (ja) | 2014-02-25 | 2018-02-07 | 東芝ライテック株式会社 | 電源装置および照明装置 |
JP6382059B2 (ja) * | 2014-10-16 | 2018-08-29 | ローム株式会社 | スイッチング電源回路 |
CN104333216B (zh) | 2014-11-28 | 2017-04-12 | 矽力杰半导体技术(杭州)有限公司 | 开关电源控制器及其控制方法 |
CN106793359B (zh) * | 2015-11-19 | 2019-10-18 | 台达电子企业管理(上海)有限公司 | 调光驱动电路及其控制方法 |
JP6711123B2 (ja) | 2016-05-12 | 2020-06-17 | 株式会社デンソー | 電力変換装置 |
US10056828B2 (en) * | 2016-07-11 | 2018-08-21 | Infineon Technologies Austria Ag | System and method for controlling current in a switching regulator |
JP6844967B2 (ja) * | 2016-07-27 | 2021-03-17 | ローム株式会社 | 半導体装置 |
CN107027213B (zh) * | 2017-03-06 | 2018-11-30 | 广东德洛斯照明工业有限公司 | 一种智能恒定亮度输出控制方法 |
JP6422535B2 (ja) | 2017-07-28 | 2018-11-14 | 三菱電機株式会社 | 電力変換装置 |
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- 2018-11-08 CN CN201811325721.4A patent/CN111182676B/zh active Active
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- 2019-10-31 US US16/669,873 patent/US11665794B2/en active Active
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JP2020077636A (ja) | 2020-05-21 |
CN111182676B (zh) | 2021-07-09 |
CN111182676A (zh) | 2020-05-19 |
US20200154537A1 (en) | 2020-05-14 |
US11665794B2 (en) | 2023-05-30 |
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