JP7455458B2 - 電流一致をともなう電力コンバーター - Google Patents

電流一致をともなう電力コンバーター Download PDF

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Publication number
JP7455458B2
JP7455458B2 JP2019113045A JP2019113045A JP7455458B2 JP 7455458 B2 JP7455458 B2 JP 7455458B2 JP 2019113045 A JP2019113045 A JP 2019113045A JP 2019113045 A JP2019113045 A JP 2019113045A JP 7455458 B2 JP7455458 B2 JP 7455458B2
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circuit
coupled
current
led driver
trimming
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Japanese (ja)
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JP2019220182A (ja
JP2019220182A5 (https=
Inventor
デイヴィッド グリーンウッド ジョン
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パワー・インテグレーションズ・インコーポレーテッド
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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]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators
    • H05B45/397—Current mirror circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • 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
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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
    • H05B45/35—Balancing circuits
    • 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
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Led Devices (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
JP2019113045A 2018-06-19 2019-06-18 電流一致をともなう電力コンバーター Active JP7455458B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862687001P 2018-06-19 2018-06-19
US62/687,001 2018-06-19
US16/433,584 2019-06-06
US16/433,584 US10863600B2 (en) 2018-06-19 2019-06-06 Power converter with current matching

Publications (3)

Publication Number Publication Date
JP2019220182A JP2019220182A (ja) 2019-12-26
JP2019220182A5 JP2019220182A5 (https=) 2022-06-03
JP7455458B2 true JP7455458B2 (ja) 2024-03-26

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Family Applications (1)

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JP2019113045A Active JP7455458B2 (ja) 2018-06-19 2019-06-18 電流一致をともなう電力コンバーター

Country Status (4)

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US (2) US10863600B2 (https=)
JP (1) JP7455458B2 (https=)
CN (1) CN110619853B (https=)
TW (1) TWI810319B (https=)

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CN115605804A (zh) 2021-05-11 2023-01-13 京东方科技集团股份有限公司（Cn） 虚拟图像显示系统及其数据处理方法和显示装置
KR20230083640A (ko) * 2021-12-03 2023-06-12 주식회사 엘엑스세미콘 정전류 구동 장치 및 그의 전류 보정 방법
TWI799222B (zh) * 2022-04-01 2023-04-11 新唐科技股份有限公司 消耗電能評估裝置以及消耗電能評估方法
CN114637366B (zh) * 2022-05-18 2022-08-23 成都本原聚能科技有限公司 与工艺、温度无关的检测电路、芯片及流明检测用途
US20240172340A1 (en) * 2022-11-18 2024-05-23 Universal Douglas Lighting Americas, Inc. Method of Calibrating Analog Control Voltage of LED Driver
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JP2006166458A (ja) 2004-12-07 2006-06-22 Altera Corp プログラム可能なロジックデバイスの性能特性を調整する装置と方法
US20090187925A1 (en) 2008-01-17 2009-07-23 Delta Electronic Inc. Driver that efficiently regulates current in a plurality of LED strings
JP2010086826A (ja) 2008-09-30 2010-04-15 Kyocera Corp 光源装置および表示装置
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US20160226373A1 (en) 2015-01-30 2016-08-04 Infineon Technologies Ag Automatic short led detection for light emitting diode (led) array load

Also Published As

Publication number Publication date
US20190387588A1 (en) 2019-12-19
US20210059028A1 (en) 2021-02-25
TWI810319B (zh) 2023-08-01
US10863600B2 (en) 2020-12-08
US11445587B2 (en) 2022-09-13
CN110619853A (zh) 2019-12-27
TW202006492A (zh) 2020-02-01
CN110619853B (zh) 2024-01-05
JP2019220182A (ja) 2019-12-26

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