KR20090001101A - 교류 구동 led의 조광기 - Google Patents
교류 구동 led의 조광기 Download PDFInfo
- Publication number
- KR20090001101A KR20090001101A KR1020070065227A KR20070065227A KR20090001101A KR 20090001101 A KR20090001101 A KR 20090001101A KR 1020070065227 A KR1020070065227 A KR 1020070065227A KR 20070065227 A KR20070065227 A KR 20070065227A KR 20090001101 A KR20090001101 A KR 20090001101A
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- current
- resistor
- dimmer
- parallel
- 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.)
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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]
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (5)
- 교류 전원 및 교류 구동 발광 다이오드와 직렬로 연결되어 입력된 교류 전압을 정류하는 정류부;상기 정류부에 연결되고, 발광량 설정에 따라 상기 정류부를 통과하는 전류의 크기를 조절할 수 있도록 연결된 전류 조절부; 및상기 교류 구동 발광 다이오드에 병렬로 연결된 병렬 저항을 포함하며,상기 병렬 저항의 크기는, 발광량이 암전으로 설정될 때에는 상기 병렬 저항 양단에 걸리는 전압이 상기 교류 구동 발광 다이오드의 턴온 전압보다 낮도록, 그리고 발광량이 설정될 때에는 상기 병렬 저항 양단에 걸리는 전압이 상기 교류 구동 발광 다이오드의 턴온 전압보다 높도록 하는 범위 내에서 결정되는 것을 특징으로 하는 교류 구동 발광 다이오드 조광기.
- 청구항 1에 있어서, 상기 정류부는 브리지 정류기인 것을 특징으로 하는 교류 구동 발광 다이오드 조광기.
- 청구항 1에 있어서, 상기 전류 조절부는상기 정류부의 일단에 연결되는 고정 저항;상기 고정 저항과 상기 정류부의 타단 사이에 연결되는 가변 저항; 및제어 전극은 상기 고정 저항과 상기 가변 저항의 접점에 연결되고, 제1 및 제2 전극은 상기 정류부의 일단 및 타단에 각각 연결되는 트랜지스터를 포함하는 것을 특징으로 하는 교류 구동 발광 다이오드 조광기.
- 청구항 3에 있어서, 상기 트랜지스터는 전계 효과 트랜지스터인 것을 특징으로 하는 교류 구동 발광 다이오드 조광기.
- 청구항 3에 있어서, 상기 가변 저항은 상기 발광량 설정에 따라 저항 값이 가변되는 것을 특징으로 하는 교류 구동 발광 다이오드 조광기.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070065227A KR100878852B1 (ko) | 2007-06-29 | 2007-06-29 | 교류 구동 led의 조광기 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070065227A KR100878852B1 (ko) | 2007-06-29 | 2007-06-29 | 교류 구동 led의 조광기 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20090001101A true KR20090001101A (ko) | 2009-01-08 |
| KR100878852B1 KR100878852B1 (ko) | 2009-01-15 |
Family
ID=40484210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020070065227A Expired - Fee Related KR100878852B1 (ko) | 2007-06-29 | 2007-06-29 | 교류 구동 led의 조광기 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100878852B1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014073911A1 (ko) * | 2012-11-08 | 2014-05-15 | 서울반도체 주식회사 | 교류 led 구동 및 조광 제어장치와 그 방법 |
| CN113393801A (zh) * | 2020-03-10 | 2021-09-14 | 重庆康佳光电技术研究院有限公司 | Led显示器的发光单元、像素单元以及其led显示器 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100105290A (ko) * | 2009-03-18 | 2010-09-29 | 서울반도체 주식회사 | 발광장치 및 그의 구동회로 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2536307C (en) * | 2004-05-19 | 2015-07-07 | Goeken Group Corp. | Dynamic snubbing for led lighting converter |
-
2007
- 2007-06-29 KR KR1020070065227A patent/KR100878852B1/ko not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014073911A1 (ko) * | 2012-11-08 | 2014-05-15 | 서울반도체 주식회사 | 교류 led 구동 및 조광 제어장치와 그 방법 |
| CN113393801A (zh) * | 2020-03-10 | 2021-09-14 | 重庆康佳光电技术研究院有限公司 | Led显示器的发光单元、像素单元以及其led显示器 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100878852B1 (ko) | 2009-01-15 |
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