EP3533291A1 - Abwärtswandler für eine leuchtdiode - Google Patents
Abwärtswandler für eine leuchtdiodeInfo
- Publication number
- EP3533291A1 EP3533291A1 EP17780748.4A EP17780748A EP3533291A1 EP 3533291 A1 EP3533291 A1 EP 3533291A1 EP 17780748 A EP17780748 A EP 17780748A EP 3533291 A1 EP3533291 A1 EP 3533291A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- current
- down converter
- controller
- emitting diode
- 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
Links
- 238000000034 method Methods 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 5
- 230000005669 field effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/375—Switched mode power supply [SMPS] using buck 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]
- H05B45/10—Controlling the intensity of the light
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016221398.9A DE102016221398A1 (de) | 2016-10-31 | 2016-10-31 | Abwärtswandler für eine leuchtdiode |
PCT/EP2017/075619 WO2018077599A1 (de) | 2016-10-31 | 2017-10-09 | Abwärtswandler für eine leuchtdiode |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3533291A1 true EP3533291A1 (de) | 2019-09-04 |
EP3533291B1 EP3533291B1 (de) | 2021-04-07 |
Family
ID=60037619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17780748.4A Active EP3533291B1 (de) | 2016-10-31 | 2017-10-09 | Abwärtswandler für eine leuchtdiode |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3533291B1 (de) |
AT (1) | AT17349U1 (de) |
DE (1) | DE102016221398A1 (de) |
WO (1) | WO2018077599A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018115174B4 (de) * | 2018-06-25 | 2024-01-11 | Tridonic Gmbh & Co Kg | LED-Konverter als Audioverstärker |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7944153B2 (en) * | 2006-12-15 | 2011-05-17 | Intersil Americas Inc. | Constant current light emitting diode (LED) driver circuit and method |
US8723446B2 (en) * | 2008-05-13 | 2014-05-13 | Nxp B.V. | Method and circuit arrangement for cycle-by-cycle control of a LED current flowing through a LED circuit arrangement, and associated circuit composition and lighting system |
US8026704B2 (en) * | 2008-06-06 | 2011-09-27 | Infineon Technologies Austria Ag | System and method for controlling a converter |
US9185755B2 (en) * | 2011-08-19 | 2015-11-10 | Marvell World Trade Ltd. | Regulator for LED lighting color mixing |
JP5986921B2 (ja) * | 2012-12-27 | 2016-09-06 | 日立アプライアンス株式会社 | 点灯装置 |
CN104066246B (zh) * | 2014-06-24 | 2017-01-04 | 成都芯源系统有限公司 | 发光元件驱动方法和发光元件驱动器及其控制器 |
-
2016
- 2016-10-31 DE DE102016221398.9A patent/DE102016221398A1/de not_active Withdrawn
- 2016-11-29 AT ATGM293/2016U patent/AT17349U1/de not_active IP Right Cessation
-
2017
- 2017-10-09 EP EP17780748.4A patent/EP3533291B1/de active Active
- 2017-10-09 WO PCT/EP2017/075619 patent/WO2018077599A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
AT17349U1 (de) | 2022-01-15 |
EP3533291B1 (de) | 2021-04-07 |
WO2018077599A1 (de) | 2018-05-03 |
DE102016221398A1 (de) | 2018-05-03 |
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