CN110619853B - 具有电流匹配的功率转换器 - Google Patents

具有电流匹配的功率转换器 Download PDF

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Publication number
CN110619853B
CN110619853B CN201910528195.XA CN201910528195A CN110619853B CN 110619853 B CN110619853 B CN 110619853B CN 201910528195 A CN201910528195 A CN 201910528195A CN 110619853 B CN110619853 B CN 110619853B
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China
Prior art keywords
circuit
led driver
coupled
current
voltage
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Active
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CN201910528195.XA
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English (en)
Chinese (zh)
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CN110619853A (zh
Inventor
J·D·格林伍德
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Power Integrations Inc
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Power Integrations Inc
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Publication of CN110619853A publication Critical patent/CN110619853A/zh
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Classifications

    • 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

Landscapes

  • 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)
CN201910528195.XA 2018-06-19 2019-06-18 具有电流匹配的功率转换器 Active CN110619853B (zh)

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 (2)

Publication Number Publication Date
CN110619853A CN110619853A (zh) 2019-12-27
CN110619853B true CN110619853B (zh) 2024-01-05

Family

ID=68839446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910528195.XA Active CN110619853B (zh) 2018-06-19 2019-06-18 具有电流匹配的功率转换器

Country Status (4)

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

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US10849203B2 (en) * 2018-01-02 2020-11-24 Texas Instruments Incorporated Multi-string LED current balancing circuit with fault detection
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
WO2024208490A1 (en) * 2023-04-06 2024-10-10 Ams-Osram Ag Monitoring circuit and corresponding method
TWI908252B (zh) * 2024-08-13 2025-12-11 茂達電子股份有限公司 適應性電壓調控電路

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JP2017021230A (ja) * 2015-07-13 2017-01-26 シナプティクス・ジャパン合同会社 半導体装置及び電子機器

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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
JP2019220182A (ja) 2019-12-26
JP7455458B2 (ja) 2024-03-26

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