GB2561483A - Two-stage charge pump for LED drivers - Google Patents

Two-stage charge pump for LED drivers Download PDF

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Publication number
GB2561483A
GB2561483A GB1809433.4A GB201809433A GB2561483A GB 2561483 A GB2561483 A GB 2561483A GB 201809433 A GB201809433 A GB 201809433A GB 2561483 A GB2561483 A GB 2561483A
Authority
GB
United Kingdom
Prior art keywords
charge pump
stage charge
led
led drivers
input voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1809433.4A
Other versions
GB2561483B (en
GB201809433D0 (en
Inventor
Zhong Scotty
Mao Egbert
Chen Gary
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic GmbH and Co KG
Original Assignee
Tridonic GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of GB201809433D0 publication Critical patent/GB201809433D0/en
Publication of GB2561483A publication Critical patent/GB2561483A/en
Application granted granted Critical
Publication of GB2561483B publication Critical patent/GB2561483B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • 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
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4241—Arrangements for improving power factor of AC input using a resonant converter
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4258—Arrangements for improving power factor of AC input using a single converter stage both for correction of AC input power factor and generation of a regulated and galvanically isolated DC output voltage
    • 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
    • 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]
    • 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

A driving circuit for supplying a LED-stream with at least one LED, the circuit comprises an input unit (1) configured to boost an input voltage (VIN), a converting unit (2), configured to convert the boosted input voltage (VBUS) into a supply voltage for the LED-string, wherein the input unit (2) comprises a two-stage charge pump (11, 12) configured to smoothing the input voltage (VIN).

Description

(54) Title of the Invention: Two-stage charge pump for LED drivers Abstract Title: Two-stage charge pump for LED drivers (57) A driving circuit for supplying a LED-stream with at least one LED, the circuit comprises an input unit (1) configured to boost an input voltage (VIN), a converting unit (2), configured to convert the boosted input voltage (VBUS) into a supply voltage for the LED-string, wherein the input unit (2) comprises a two-stage charge pump (11, 12) configured to smoothing the input voltage (VIN).
Pump Node Mode Current

Claims (1)

  1. Source Current ’J» . ΡΛηο cams! from Mains „
    ................................................... ............... Resonant AC
    M current-Used to
    .......1
    Μ M SAt ·* BA* t« tx? set ne ~ih? Mi
    H T.
    U“ b!»| charge pomp
    .......SSp & »Αί W· « -H
    Fig.l
GB1809433.4A 2016-01-05 2016-01-05 Two-stage charge pump for LED drivers Active GB2561483B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/070186 WO2017117723A1 (en) 2016-01-05 2016-01-05 Two-stage charge pump for led drivers

Publications (3)

Publication Number Publication Date
GB201809433D0 GB201809433D0 (en) 2018-07-25
GB2561483A true GB2561483A (en) 2018-10-17
GB2561483B GB2561483B (en) 2021-08-04

Family

ID=59273150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1809433.4A Active GB2561483B (en) 2016-01-05 2016-01-05 Two-stage charge pump for LED drivers

Country Status (2)

Country Link
GB (1) GB2561483B (en)
WO (1) WO2017117723A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872432A (en) * 2021-11-17 2021-12-31 四川莱福德科技有限公司 Power factor correction converter and control method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030025550A1 (en) * 2001-08-01 2003-02-06 Jens Egerer Method and integrated circuit for boosting a voltage
WO2007074866A1 (en) * 2005-12-28 2007-07-05 Sharp Kabushiki Kaisha Light emitting device driving circuit
CN101064467A (en) * 2006-04-27 2007-10-31 罗姆股份有限公司 Power supply device, led driver, illumination device, and display device
CN101313632A (en) * 2005-12-12 2008-11-26 三菱电机株式会社 Light emitting diode lighting device and vehicle light lighting device using same
CN101578713A (en) * 2007-07-06 2009-11-11 罗姆股份有限公司 Driving circuit for light emitting element, and electronic device
EP2490511A1 (en) * 2011-02-15 2012-08-22 Nxp B.V. Electronic ballast

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030025550A1 (en) * 2001-08-01 2003-02-06 Jens Egerer Method and integrated circuit for boosting a voltage
CN101313632A (en) * 2005-12-12 2008-11-26 三菱电机株式会社 Light emitting diode lighting device and vehicle light lighting device using same
WO2007074866A1 (en) * 2005-12-28 2007-07-05 Sharp Kabushiki Kaisha Light emitting device driving circuit
CN101064467A (en) * 2006-04-27 2007-10-31 罗姆股份有限公司 Power supply device, led driver, illumination device, and display device
CN101578713A (en) * 2007-07-06 2009-11-11 罗姆股份有限公司 Driving circuit for light emitting element, and electronic device
EP2490511A1 (en) * 2011-02-15 2012-08-22 Nxp B.V. Electronic ballast

Also Published As

Publication number Publication date
WO2017117723A1 (en) 2017-07-13
GB2561483B (en) 2021-08-04
GB201809433D0 (en) 2018-07-25

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