FI125185B - Menetelmä ja muunnin virran syöttämiseksi sarjakytketyille ledeille - Google Patents

Menetelmä ja muunnin virran syöttämiseksi sarjakytketyille ledeille Download PDF

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Publication number
FI125185B
FI125185B FI20145027A FI20145027A FI125185B FI 125185 B FI125185 B FI 125185B FI 20145027 A FI20145027 A FI 20145027A FI 20145027 A FI20145027 A FI 20145027A FI 125185 B FI125185 B FI 125185B
Authority
FI
Finland
Prior art keywords
current
signal
leds
main switch
series
Prior art date
Application number
FI20145027A
Other languages
English (en)
Swedish (sv)
Inventor
Jari Kataja
Original Assignee
Teknoware Oy
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 Teknoware Oy filed Critical Teknoware Oy
Priority to FI20145027A priority Critical patent/FI125185B/fi
Priority to EP15150731.6A priority patent/EP2897272B1/en
Priority to US14/595,994 priority patent/US9532417B2/en
Application granted granted Critical
Publication of FI125185B publication Critical patent/FI125185B/fi

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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
    • 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
    • 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
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • 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
    • H02M3/158—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 including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • 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]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)

Claims (4)

1. Nostava (boost) muunnin virran tuottamiseksi ledien (21) sarja-kytkennälle, jossa nostava muunnin käsittää pääkytkimen (Qi), ja jossa pääkytkimen (Qx) pulssisuhde on sovitettu ohjattavaksi virtatakaisin-kytkentäsignaalin perusteella, tunnettu siitä, että virtatakaisinkytkentäsignaali on muodostettu painotetuksi keskiarvoksi ainakin kahdesta signaalista, joihin sisältyy ensimmäinen signaali, joka edustaa virtaa ledien (21) sarjakytkennän läpi, ja toinen signaali, joka edustaa virtaa pääkytkimen (Qx) läpi.
2. Patenttivaatimuksen 1 mukainen nostava muunnin, tunnet-t u siitä, että ensimmäinen signaali on jännite ledien kanssa sarjassa olevan ensimmäisen vastuksen (i?m,i) yli, toinen signaali on jännite pääkytkimen kanssa sarjassa olevan toisen vastuksen (Rm,2) yli, ja painotettu keskiarvo on muodostettu yhdistämällä ensimmäinen signaali ja toinen signaali yhteiseen pisteeseen vastusten (RWth Rw<2) kautta.
3. Patenttivaatimuksen 2 mukainen nostava muunnin, tunnet-t u siitä, että painotettu keskiarvo sisältää lisäksi jännitereferenssillä (22) muodostetun vakiojännitteen.
4. Menetelmä virtaa ledien (21) sarjakytkennälle tuottavan nostavan (boost) muuntimen ohjaamiseksi, tunnettu siitä, että menetelmä käsittää vaiheet, joissa muodostetaan virtatakaisinkytkentäsignaali painotetuksi keskiarvoksi ainakin kahdesta signaalista, joihin sisältyy ensimmäinen signaali, joka edustaa virtaa ledien (21) sarjakytkennän läpi, ja toinen signaali, joka edustaa virtaa nostavan muuntimen pääkytkimen (Qi) läpi, ja ohjataan pääkytkimen (Q{) pulssisuhdetta virtatakaisinkytkennän perusteella.
FI20145027A 2014-01-15 2014-01-15 Menetelmä ja muunnin virran syöttämiseksi sarjakytketyille ledeille FI125185B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20145027A FI125185B (fi) 2014-01-15 2014-01-15 Menetelmä ja muunnin virran syöttämiseksi sarjakytketyille ledeille
EP15150731.6A EP2897272B1 (en) 2014-01-15 2015-01-12 Method and converter for supplying current to series connection of LEDs
US14/595,994 US9532417B2 (en) 2014-01-15 2015-01-13 Method and converter for supplying current to series connection of LEDs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20145027 2014-01-15
FI20145027A FI125185B (fi) 2014-01-15 2014-01-15 Menetelmä ja muunnin virran syöttämiseksi sarjakytketyille ledeille

Publications (1)

Publication Number Publication Date
FI125185B true FI125185B (fi) 2015-06-30

Family

ID=52339016

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20145027A FI125185B (fi) 2014-01-15 2014-01-15 Menetelmä ja muunnin virran syöttämiseksi sarjakytketyille ledeille

Country Status (3)

Country Link
US (1) US9532417B2 (fi)
EP (1) EP2897272B1 (fi)
FI (1) FI125185B (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105848334B (zh) * 2016-03-26 2018-03-02 中山市德源照明电器有限公司 一种led恒流控制电源

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7276861B1 (en) * 2004-09-21 2007-10-02 Exclara, Inc. System and method for driving LED
US7733030B2 (en) * 2007-12-26 2010-06-08 Analog Devices, Inc. Switching power converter with controlled startup mechanism
EP2385747A3 (en) * 2010-05-08 2012-05-16 EMD Technologies, Inc. LED illumination systems
JP5043213B2 (ja) * 2010-08-23 2012-10-10 シャープ株式会社 Ｌｅｄ駆動回路及びこれを用いたｌｅｄ照明灯具
JP5079855B2 (ja) * 2010-08-24 2012-11-21 シャープ株式会社 Ｌｅｄ駆動回路及びこれを用いたｌｅｄ照明灯具
TWI439169B (zh) 2011-07-08 2014-05-21 Ind Tech Res Inst 發光二極體驅動電路
CN102958236B (zh) * 2011-08-31 2015-03-11 美国亚德诺半导体公司 电流控制电路、发光二极管驱动器及其制作方法
US8823284B2 (en) 2011-11-10 2014-09-02 Honeywell International Inc. Optimal power supply topologies for switched current-driven LEDs
CN203327330U (zh) 2013-07-12 2013-12-04 辽宁泰蒙通讯技术有限公司 一种手机lcd背光灯节能驱动电路

Also Published As

Publication number Publication date
US9532417B2 (en) 2016-12-27
EP2897272A3 (en) 2015-10-14
US20150201473A1 (en) 2015-07-16
EP2897272A2 (en) 2015-07-22
EP2897272B1 (en) 2020-12-02

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