JP4333787B2 - 冷陰極放電灯点灯装置 - Google Patents
冷陰極放電灯点灯装置 Download PDFInfo
- Publication number
- JP4333787B2 JP4333787B2 JP2007220071A JP2007220071A JP4333787B2 JP 4333787 B2 JP4333787 B2 JP 4333787B2 JP 2007220071 A JP2007220071 A JP 2007220071A JP 2007220071 A JP2007220071 A JP 2007220071A JP 4333787 B2 JP4333787 B2 JP 4333787B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- lighting device
- lamp lighting
- ballast
- inverter
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 44
- 230000004048 modification Effects 0.000 description 15
- 238000012986 modification Methods 0.000 description 15
- 238000004804 winding Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 230000003071 parasitic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
- H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
- H05B41/2822—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Description
10,10a インバータ
21 パネル
Vin 直流電源
T トランス
C11〜C13、C21〜C23 バラストコンデンサ
L11〜L13、L21〜L23 バラストコイル
P 1次巻線
S1,S2 2次巻線
Claims (4)
- 直流電圧を入力して交番電圧に変換し、第1出力端子および第2出力端子から出力するインバータと、
一方の端子が前記インバータの第1出力端子に接続された第1バラスト素子と前記第1バラスト素子の他方の端子と前記インバータの第2出力端子との間に接続された第1冷陰極放電灯との対と、
一方の端子が前記インバータの第2出力端子に接続された第2バラスト素子と前記第2バラスト素子の他方の端子と前記インバータの第1出力端子との間に接続された第2冷陰極放電灯との対と、
を備え、
前記第1冷陰極放電灯の輝度傾斜と前記第2冷陰極放電灯の輝度傾斜とが逆となるように配置されていることを特徴とする冷陰極放電灯点灯装置。 - 前記第1バラスト素子と第1冷陰極放電灯との対及び前記第2バラスト素子と第2冷陰極放電灯との対の各々は、複数であることを特徴とする請求項1記載の冷陰極放電灯点灯装置。
- 前記第1バラスト素子及び前記第2バラスト素子は、コンデンサからなることを特徴とする請求項1又は請求項2記載の冷陰極放電灯点灯装置。
- 前記第1バラスト素子及び前記第2バラスト素子は、コイルからなることを特徴とする請求項1又は請求項2記載の冷陰極放電灯点灯装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007220071A JP4333787B2 (ja) | 2007-08-27 | 2007-08-27 | 冷陰極放電灯点灯装置 |
US12/665,057 US20100164392A1 (en) | 2007-08-27 | 2008-08-08 | Discharge lamp lighting apparatus |
KR1020097026188A KR20100009588A (ko) | 2007-08-27 | 2008-08-08 | 방전등 점등장치 |
PCT/JP2008/064332 WO2009028321A1 (ja) | 2007-08-27 | 2008-08-08 | 放電灯点灯装置 |
CN200880020728A CN101682968A (zh) | 2007-08-27 | 2008-08-08 | 放电灯点灯装置 |
TW097130929A TW200920183A (en) | 2007-08-27 | 2008-08-14 | Discharge lamp operating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007220071A JP4333787B2 (ja) | 2007-08-27 | 2007-08-27 | 冷陰極放電灯点灯装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009054416A JP2009054416A (ja) | 2009-03-12 |
JP4333787B2 true JP4333787B2 (ja) | 2009-09-16 |
Family
ID=40387047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007220071A Expired - Fee Related JP4333787B2 (ja) | 2007-08-27 | 2007-08-27 | 冷陰極放電灯点灯装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100164392A1 (ja) |
JP (1) | JP4333787B2 (ja) |
KR (1) | KR20100009588A (ja) |
CN (1) | CN101682968A (ja) |
TW (1) | TW200920183A (ja) |
WO (1) | WO2009028321A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5835663B2 (ja) * | 2011-11-10 | 2015-12-24 | 東芝ライテック株式会社 | 照明用電源および照明装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01251506A (ja) * | 1988-03-31 | 1989-10-06 | Toshiba Lighting & Technol Corp | 照明器具 |
WO2005043592A2 (en) * | 2003-10-21 | 2005-05-12 | Microsemi Corporation | Balancing transformers for lamps driven in parallel |
JP3829142B2 (ja) * | 2004-10-29 | 2006-10-04 | Tdk株式会社 | 放電灯駆動装置 |
JP2006244972A (ja) * | 2005-02-01 | 2006-09-14 | Sanken Electric Co Ltd | 放電灯点灯装置 |
KR101127828B1 (ko) * | 2005-04-18 | 2012-03-20 | 엘지디스플레이 주식회사 | 백 라이트의 구동장치 및 구동방법 |
KR101233819B1 (ko) * | 2006-02-07 | 2013-02-18 | 삼성디스플레이 주식회사 | 램프 구동 장치 및 이를 포함한 액정 표시 장치 |
JP2009043532A (ja) * | 2007-08-08 | 2009-02-26 | Sanken Electric Co Ltd | 放電灯点灯装置 |
-
2007
- 2007-08-27 JP JP2007220071A patent/JP4333787B2/ja not_active Expired - Fee Related
-
2008
- 2008-08-08 US US12/665,057 patent/US20100164392A1/en not_active Abandoned
- 2008-08-08 WO PCT/JP2008/064332 patent/WO2009028321A1/ja active Application Filing
- 2008-08-08 KR KR1020097026188A patent/KR20100009588A/ko not_active Application Discontinuation
- 2008-08-08 CN CN200880020728A patent/CN101682968A/zh active Pending
- 2008-08-14 TW TW097130929A patent/TW200920183A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
WO2009028321A1 (ja) | 2009-03-05 |
JP2009054416A (ja) | 2009-03-12 |
TW200920183A (en) | 2009-05-01 |
CN101682968A (zh) | 2010-03-24 |
KR20100009588A (ko) | 2010-01-27 |
US20100164392A1 (en) | 2010-07-01 |
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