KR100984813B1 - 전원 공급 장치 및 이를 이용한 액정 표시 장치 - Google Patents
전원 공급 장치 및 이를 이용한 액정 표시 장치 Download PDFInfo
- Publication number
- KR100984813B1 KR100984813B1 KR1020030041105A KR20030041105A KR100984813B1 KR 100984813 B1 KR100984813 B1 KR 100984813B1 KR 1020030041105 A KR1020030041105 A KR 1020030041105A KR 20030041105 A KR20030041105 A KR 20030041105A KR 100984813 B1 KR100984813 B1 KR 100984813B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- transformer
- liquid crystal
- rectifier
- crystal display
- 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.)
- Expired - Fee Related
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- 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
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
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- 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
- G09G3/36—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 using liquid crystals
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- 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
- H02M1/0083—Converters characterised by their input or output configuration
-
- 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
- H02M1/40—Means for preventing magnetic saturation
-
- 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
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- 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal 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
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal 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, e.g. single switched pulse inverters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Dc-Dc Converters (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims (10)
- 외부로부터 범용 교류 전압을 입력받는 AC 입력부;상기 범용 교류 전압을 직류 전압으로 변환하는 AC-DC 정류부;상기 AC-DC 정류부로부터의 직류 전압을 액정 표시 장치의 백라이트를 구동하기에 적합한 교류 전압으로 변환하고, 상기 교류 전압을 고전압으로 승압시키는 트랜스포머를 포함하는 DC-AC 인버터;상기 AC-DC 정류부로부터의 직류 전압을 적합한 소정의 전압 레벨로 변환하여 액정 표시 장치의 액정 패널부에 제공하는 DC-DC컨버터를 포함하되,상기 트랜스포머는 상기 AC-DC 정류부와 상기 백라이트간을 절연시키면서 고전압으로 승압시키기 위하여 몰딩되고, 절연 와이어 구조를 가지며, 그 내부에 2차측 전류를 피드백하기 위한 2차측 센터 탭을 갖는 전원 공급 장치.
- 제1항에서,상기 트랜스포머는,상기 AC-DC 정류부와 상기 백라이트간을 절연시키기 위한 구조를 갖는 제1 트랜스포머와 고전압으로 승압시키는 제2 트랜스포머를 포함하여 이루어지는 전원 공급 장치.
- 제2항에서,상기 제1 트랜스포머는 절연 트랜스포머이고, 상기 제2 트랜스포머는 비 절연 트랜스포머인 전원 공급 장치.
- 삭제
- 제1항에서,상기 AC-DC 정류부는 역률 보상부를 포함하는 전원 공급 장치.
- 제1항에서,상기 DC-AC 인버터는,하프 브리지 인버터, 풀 브리지 인버터 및 푸쉬풀 인버터 중 어느 하나를 포함하여 이루어지는 것을 특징으로 하는 전원 공급 장치.
- 제1항에서,상기 DC-DC 컨버터는,플라이 백 컨버터로 이루어지는 것을 특징으로 하는 전원 공급 장치.
- 외부로부터 범용 교류 전압을 입력받는 AC 입력부;상기 범용 교류 전압을 직류 전압으로 변환하는 AC-DC 정류부;AC-DC 정류부로부터의 직류 전압을 액정 표시 장치의 백라이트를 구동하기에 적합한 교류 전압으로 변환하고, 상기 교류 전압을 고전압으로 승압시키는 트랜스포머를 포함하는 DC-AC 인버터;상기 DC-AC 인버터로부터 교류 전압을 인가받는 다수의 램프를 포함하는 백라이트;상기 AC-DC 정류부로부터의 직류 전압을 적합한 소정의 전압 레벨로 변환하는 DC-DC 컨버터; 및상기 DC-DC컨버터로부터의 소정의 전압을 인가받는 액정 패널부를 포함하되,상기 트랜스포머는 상기 AC-DC 정류부와 상기 백라이트간을 절연시키면서 고전압으로 승압시키기 위하여 몰딩되고, 절연 와이어 구조를 가지며, 그 내부에 2차측 전류를 피드백하기 위한 2차측 센터 탭을 갖는 액정 표시 장치.
- 제8항에서,상기 트랜스포머는,상기 AC-DC 정류부와 상기 백라이트간을 절연시키기 위한 구조를 갖는 제1 트랜스포머와 고전압으로 승압시키는 제2 트랜스포머를 포함하여 이루어지는 액정 표시 장치.
- 삭제
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030041105A KR100984813B1 (ko) | 2003-06-24 | 2003-06-24 | 전원 공급 장치 및 이를 이용한 액정 표시 장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030041105A KR100984813B1 (ko) | 2003-06-24 | 2003-06-24 | 전원 공급 장치 및 이를 이용한 액정 표시 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050000639A KR20050000639A (ko) | 2005-01-06 |
| KR100984813B1 true KR100984813B1 (ko) | 2010-10-01 |
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ID=37216565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030041105A Expired - Fee Related KR100984813B1 (ko) | 2003-06-24 | 2003-06-24 | 전원 공급 장치 및 이를 이용한 액정 표시 장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100984813B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023003055A1 (ko) * | 2021-07-21 | 2023-01-26 | 엘지전자 주식회사 | 영상표시장치 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101421215B1 (ko) * | 2007-10-10 | 2014-07-24 | 삼성디스플레이 주식회사 | 인버터 및 이를 포함하는 액정 표시 장치 |
| ATE545190T1 (de) * | 2008-07-09 | 2012-02-15 | Sma Solar Technology Ag | Dc/dc-wandler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990030857A (ko) * | 1997-10-07 | 1999-05-06 | 조현상 | 네온관용 변압기 |
| JP2002084752A (ja) * | 2000-09-05 | 2002-03-22 | Sony Corp | 高電圧安定化回路 |
| KR20030003684A (ko) * | 2001-07-03 | 2003-01-10 | 삼성전자 주식회사 | 전원 공급 장치 및 이를 갖는 액정 표시 장치 |
-
2003
- 2003-06-24 KR KR1020030041105A patent/KR100984813B1/ko not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990030857A (ko) * | 1997-10-07 | 1999-05-06 | 조현상 | 네온관용 변압기 |
| JP2002084752A (ja) * | 2000-09-05 | 2002-03-22 | Sony Corp | 高電圧安定化回路 |
| KR20030003684A (ko) * | 2001-07-03 | 2003-01-10 | 삼성전자 주식회사 | 전원 공급 장치 및 이를 갖는 액정 표시 장치 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023003055A1 (ko) * | 2021-07-21 | 2023-01-26 | 엘지전자 주식회사 | 영상표시장치 |
| US12482398B2 (en) | 2021-07-21 | 2025-11-25 | Lg Electronics Inc. | Image display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050000639A (ko) | 2005-01-06 |
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| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
|
| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
|
| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |