JP2005513755A - 一つ以上のランプを点灯する回路 - Google Patents
一つ以上のランプを点灯する回路 Download PDFInfo
- Publication number
- JP2005513755A JP2005513755A JP2003557263A JP2003557263A JP2005513755A JP 2005513755 A JP2005513755 A JP 2005513755A JP 2003557263 A JP2003557263 A JP 2003557263A JP 2003557263 A JP2003557263 A JP 2003557263A JP 2005513755 A JP2005513755 A JP 2005513755A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- lamp
- series
- low
- gas discharge
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 2
- 230000003071 parasitic effect Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
Images
Classifications
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- 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
-
- 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
- H05B41/2825—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 bridge converter in the final stage
- H05B41/2827—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 bridge 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
-
- 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
- H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
1 回路
2 全ブリッジインバータ
3 電源
4 ローパスフィルタ
5 ローパスフィルタ
6 ランプ切替回路
7 ローパスフィルタ
8 ローパスフィルタ
9 ランプ切替回路
10 導電ライン
11 導電ライン
12 導電ライン
13 制御回路
14 インバータ
15 インバータ
16 電力スイッチ
17 電力スイッチ
18 電力スイッチ
19 電力スイッチ
20 直列コイル
21 直列コイル
22 キャパシタ
23 キャパシタ
24 ランプ
25 ノード
26 ノード
31 矩形信号波形
32 正弦基本波
33 第2の正弦基本波
34 電圧振幅
41 第2回路
42 ローパスフィルタ
43 ローパスフィルタ
51 第3回路
52 ランプ切替回路
53 ランプ切替回路
54 キャパシタ
55 コイル
56 キャパシタ
61 第4回路
62 キャパシタ
63 キャパシタ
71 始動周波数
72 点弧周波数
73 点灯周波数
Claims (7)
- 一つ以上の低圧ガス放電ランプを点灯する回路であって、電流コンバータと、その電流コンバータの駆動回路とを具える回路において、第2のコンバータが、互いに180°位相シフトした電圧を発生することを特徴とする回路。
- 直流電流を交流電流に変換するとともに、一つ以上の低電圧ガス放電ランプに対する給電を行う回路であって、電流コンバータとしての電力スイッチを有する全ブリッジ切替回路と、ランプごとの二つの共振回路とを利用し、その共振回路の各々が、直列接続されたコイルと、直列接続されたキャパシタと、並列接続されたキャパシタとを有することを特徴とする回路。
- 直流電流を交流電流に変換するとともに、一つ以上の低電圧ガス放電ランプに対する給電を行う回路であって、電流コンバータとしての電力スイッチを有する全ブリッジ切替イ回路と、直列接続された二つのキャパシタと、ランプごとの二つの共振回路とを利用し、その共振回路の各々が、直列接続されたコイルと、並列接続されたキャパシタとを有することを特徴とする回路。
- 直流電流を交流電流に変換するとともに、一つ以上の低電圧ガス放電ランプに対する給電を行う回路であって、電流コンバータとしての電力スイッチを有する全ブリッジ切替イ回路と、ランプごとの一つの共振回路とを利用し、その共振回路の各々が、直列接続されたコイルと、直列接続されたキャパシタと、並列接続されたキャパシタとを有することを特徴とする回路。
- 直流電流を交流電流に変換するとともに、一つ以上の低電圧ガス放電ランプに対する給電を行う回路であって、電流コンバータとしての電力スイッチを有する全ブリッジ切替イ回路と、直列接続された二つのキャパシタと、ランプごとの一つの共振回路とを利用し、その共振回路の各々が、直列接続されたコイルと、並列接続されたキャパシタとを有することを特徴とする回路。
- 前記並列接続されたキャパシタを、前記ランプと金属部分との間の寄生容量によって少なくとも一部を形成することを特徴とする請求項2から5のうちのいずれか1項に記載の回路。
- コンピュータ又はテレビジョンセットのビデオ信号を表示することができる液晶表示装置であって、請求項1から6のうちのいずれか1項の回路を具えることを特徴とする液晶表示装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200022A DE10200022A1 (de) | 2002-01-02 | 2002-01-02 | Schaltungsanordnung zum Betrieb einer oder mehrerer Lampen |
PCT/IB2002/005467 WO2003056885A1 (en) | 2002-01-02 | 2002-12-18 | Circuit arrangement for operation of one or more lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005513755A true JP2005513755A (ja) | 2005-05-12 |
Family
ID=7711438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003557263A Pending JP2005513755A (ja) | 2002-01-02 | 2002-12-18 | 一つ以上のランプを点灯する回路 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7030568B2 (ja) |
EP (1) | EP1464208A1 (ja) |
JP (1) | JP2005513755A (ja) |
KR (1) | KR20040073533A (ja) |
CN (1) | CN1611096A (ja) |
AU (1) | AU2002353355A1 (ja) |
DE (1) | DE10200022A1 (ja) |
TW (1) | TWI277369B (ja) |
WO (1) | WO2003056885A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011188737A (ja) * | 2010-03-09 | 2011-09-22 | Richard Landry Gray | 力率補償方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100595313B1 (ko) * | 2004-03-15 | 2006-07-03 | 엘지.필립스 엘시디 주식회사 | 백라이트 유닛의 램프 점등장치 |
JP4237097B2 (ja) * | 2004-05-10 | 2009-03-11 | パナソニック株式会社 | 冷陰極管点灯装置 |
KR101044472B1 (ko) * | 2004-06-30 | 2011-06-29 | 엘지디스플레이 주식회사 | 다램프 구동을 위한 백라이트 유닛 및 이를 채용한액정표시장치 |
US7368880B2 (en) | 2004-07-19 | 2008-05-06 | Intersil Americas Inc. | Phase shift modulation-based control of amplitude of AC voltage output produced by double-ended DC-AC converter circuitry for powering high voltage load such as cold cathode fluorescent lamp |
US7564193B2 (en) * | 2005-01-31 | 2009-07-21 | Intersil Americas Inc. | DC-AC converter having phase-modulated, double-ended, full-bridge topology for powering high voltage load such as cold cathode fluorescent lamp |
US7560872B2 (en) * | 2005-01-31 | 2009-07-14 | Intersil Americas Inc. | DC-AC converter having phase-modulated, double-ended, half-bridge topology for powering high voltage load such as cold cathode fluorescent lamp |
JP2008532220A (ja) * | 2005-02-25 | 2008-08-14 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光源 |
JP4943505B2 (ja) | 2007-04-26 | 2012-05-30 | シャープ株式会社 | 液晶表示装置 |
EP2148319A4 (en) * | 2007-04-27 | 2011-05-04 | Sharp Kk | LIQUID CRYSTAL DISPLAY DEVICE |
US7528558B2 (en) * | 2007-05-11 | 2009-05-05 | Osram Sylvania, Inc. | Ballast with ignition voltage control |
US7816872B2 (en) * | 2008-02-29 | 2010-10-19 | General Electric Company | Dimmable instant start ballast |
EP2401807B1 (en) * | 2009-02-26 | 2018-04-25 | Philips Lighting Holding B.V. | Resonant converter |
DE102009019625B4 (de) * | 2009-04-30 | 2014-05-15 | Osram Gmbh | Verfahren zum Ermitteln eines Typs einer Gasentladungslampe und elektronisches Vorschaltgerät zum Betreiben von mindestens zwei unterschiedlichen Typen von Gasentladungslampen |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5744915A (en) * | 1978-03-20 | 1998-04-28 | Nilssen; Ole K. | Electronic ballast for instant-start lamps |
TW344190B (en) * | 1992-09-22 | 1998-11-01 | Matsushita Electric Works Ltd | Discharge lamp lighting device |
US5349269A (en) * | 1993-03-29 | 1994-09-20 | Durel Corporation | Power supply having dual inverters for electroluminescent lamps |
US5615093A (en) * | 1994-08-05 | 1997-03-25 | Linfinity Microelectronics | Current synchronous zero voltage switching resonant topology |
DE4436463A1 (de) | 1994-10-12 | 1996-04-18 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Schaltungsanordnung zum Betrieb einer oder mehrerer Niederdruckentladungslampen |
US5677602A (en) * | 1995-05-26 | 1997-10-14 | Paul; Jon D. | High efficiency electronic ballast for high intensity discharge lamps |
JP3221828B2 (ja) * | 1996-02-16 | 2001-10-22 | 株式会社日立製作所 | 電力変換方法及び電力変換装置 |
US5777860A (en) * | 1996-10-16 | 1998-07-07 | Branson Ultrasonics Corporation | Ultrasonic frequency power supply |
US6023193A (en) * | 1998-05-01 | 2000-02-08 | Qsc Audio Products, Inc. | High power bridge amplifier |
US6181076B1 (en) * | 1999-08-19 | 2001-01-30 | Osram Sylvania Inc. | Apparatus and method for operating a high intensity gas discharge lamp ballast |
US6181079B1 (en) * | 1999-12-20 | 2001-01-30 | Philips Electronics North America Corporation | High power electronic ballast with an integrated magnetic component |
DE60125933T2 (de) * | 2001-03-01 | 2007-10-18 | Mitsubishi Denki K.K. | Gerät zur ansteuerung einer entladungslampe |
US6448720B1 (en) * | 2001-03-30 | 2002-09-10 | Matsushita Electric Works R&D Laboratory, Inc. | Circuit for driving an HID lamp |
DE10126958A1 (de) | 2001-06-01 | 2002-12-05 | Philips Corp Intellectual Pty | Flüssigkristallbildschirm mit verbesserter Hintergrundbeleuchtung |
DE10134966A1 (de) * | 2001-07-23 | 2003-02-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Vorschaltgerät zum Betrieb mindestens einer Niederdruckentladungslampe |
US6535403B1 (en) * | 2001-08-17 | 2003-03-18 | Abb Technology Ag | Systems and methods for inverter waveform smoothing |
-
2002
- 2002-01-02 DE DE10200022A patent/DE10200022A1/de not_active Withdrawn
- 2002-12-18 CN CNA028264835A patent/CN1611096A/zh active Pending
- 2002-12-18 WO PCT/IB2002/005467 patent/WO2003056885A1/en active Application Filing
- 2002-12-18 US US10/500,508 patent/US7030568B2/en not_active Expired - Fee Related
- 2002-12-18 EP EP02788377A patent/EP1464208A1/en not_active Withdrawn
- 2002-12-18 JP JP2003557263A patent/JP2005513755A/ja active Pending
- 2002-12-18 KR KR10-2004-7010403A patent/KR20040073533A/ko not_active Application Discontinuation
- 2002-12-18 AU AU2002353355A patent/AU2002353355A1/en not_active Abandoned
- 2002-12-30 TW TW091137851A patent/TWI277369B/zh not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011188737A (ja) * | 2010-03-09 | 2011-09-22 | Richard Landry Gray | 力率補償方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1611096A (zh) | 2005-04-27 |
DE10200022A1 (de) | 2003-07-17 |
TW200304340A (en) | 2003-09-16 |
EP1464208A1 (en) | 2004-10-06 |
US20050077842A1 (en) | 2005-04-14 |
KR20040073533A (ko) | 2004-08-19 |
US7030568B2 (en) | 2006-04-18 |
AU2002353355A1 (en) | 2003-07-15 |
WO2003056885A1 (en) | 2003-07-10 |
TWI277369B (en) | 2007-03-21 |
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