EP4000353A1 - Circuit d'attaque pour sources lumineuses, appareil de mesure optique doté d'un circuit d'attaque pour sources lumineuses, dispositif pour vérifier des documents de valeur et procédé pour faire fonctionner une charge de sources lumineuses au moyen du circuit d'attaque pour sources lumineuses - Google Patents
Circuit d'attaque pour sources lumineuses, appareil de mesure optique doté d'un circuit d'attaque pour sources lumineuses, dispositif pour vérifier des documents de valeur et procédé pour faire fonctionner une charge de sources lumineuses au moyen du circuit d'attaque pour sources lumineusesInfo
- Publication number
- EP4000353A1 EP4000353A1 EP20746107.0A EP20746107A EP4000353A1 EP 4000353 A1 EP4000353 A1 EP 4000353A1 EP 20746107 A EP20746107 A EP 20746107A EP 4000353 A1 EP4000353 A1 EP 4000353A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- light source
- control
- driver circuit
- input
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
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- 239000003990 capacitor Substances 0.000 claims description 60
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- 230000001965 increasing effect Effects 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
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- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 1
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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]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
-
- 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
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/121—Apparatus characterised by sensor details
-
- 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
-
- 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
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019005029.0A DE102019005029A1 (de) | 2019-07-18 | 2019-07-18 | Lichtquellen-treiberschaltung, optisches messgerät mit der lichtquellen-treiberschaltung, vorrichtung zum prüfen von wertdokumenten, und verfahren zum betreiben einer lichtquellen-last mittels der lichtquellen-treiberschaltung |
PCT/EP2020/025330 WO2021008732A1 (fr) | 2019-07-18 | 2020-07-13 | Circuit d'attaque pour sources lumineuses, appareil de mesure optique doté d'un circuit d'attaque pour sources lumineuses, dispositif pour vérifier des documents de valeur et procédé pour faire fonctionner une charge de sources lumineuses au moyen du circuit d'attaque pour sources lumineuses |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4000353A1 true EP4000353A1 (fr) | 2022-05-25 |
Family
ID=71786896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20746107.0A Pending EP4000353A1 (fr) | 2019-07-18 | 2020-07-13 | Circuit d'attaque pour sources lumineuses, appareil de mesure optique doté d'un circuit d'attaque pour sources lumineuses, dispositif pour vérifier des documents de valeur et procédé pour faire fonctionner une charge de sources lumineuses au moyen du circuit d'attaque pour sources lumineuses |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220264720A1 (fr) |
EP (1) | EP4000353A1 (fr) |
CN (1) | CN114175857A (fr) |
DE (1) | DE102019005029A1 (fr) |
WO (1) | WO2021008732A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023097578A1 (fr) * | 2021-12-01 | 2023-06-08 | Dialog Semiconductor (Uk) Limited | Pilote de source de lumière |
DE102022002465B3 (de) | 2022-07-06 | 2023-09-07 | Baumer Optronic Gmbh | Leuchtdiodenschaltung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4022020A1 (de) * | 1990-07-11 | 1992-01-16 | Gao Ges Automation Org | Vorrichtung und verfahren zur pruefung von dokumenten |
US7777424B2 (en) * | 2006-08-18 | 2010-08-17 | Dialight Corporation | Method and apparatus for controlling an input voltage to a light emitting diode |
KR100952499B1 (ko) * | 2007-12-10 | 2010-04-13 | 주식회사 그린씨앤씨텍 | 병렬 발광다이오드 정전류 구동 회로 |
CN101222805B (zh) * | 2007-12-20 | 2012-07-18 | 北京中星微电子有限公司 | 一种用于多串led分时调整的方法及使用该方法的驱动装置 |
US20090187925A1 (en) * | 2008-01-17 | 2009-07-23 | Delta Electronic Inc. | Driver that efficiently regulates current in a plurality of LED strings |
KR101028860B1 (ko) * | 2009-11-19 | 2011-04-12 | 주식회사 그린씨앤씨텍 | 병렬 발광다이오드 구동 회로 |
CN102118903A (zh) * | 2009-12-30 | 2011-07-06 | 富准精密工业(深圳)有限公司 | 发光二极管灯具的驱动电路 |
DE102010015088A1 (de) * | 2010-03-19 | 2011-09-22 | Dilitronics Gmbh | Schaltungsanordnung zur Reduzierung der Verlustleistung linearer Stromtreiber für lichtemittierende Dioden |
DE102011107089B4 (de) * | 2011-07-11 | 2013-06-06 | Austriamicrosystems Ag | Spannungsversorgungsanordnung und Verfahren zur Spannungsversorgung einer elektrischen Last |
DE102011112455A1 (de) * | 2011-09-03 | 2013-03-07 | Vision Components Gesellschaft für Bildverarbeitungsysteme mbH | Verfahren und elektronische Schaltung zur Stromversorgung für eine gepulste Beleuchtungsquelle |
-
2019
- 2019-07-18 DE DE102019005029.0A patent/DE102019005029A1/de active Pending
-
2020
- 2020-07-13 EP EP20746107.0A patent/EP4000353A1/fr active Pending
- 2020-07-13 US US17/627,511 patent/US20220264720A1/en active Pending
- 2020-07-13 CN CN202080051836.8A patent/CN114175857A/zh active Pending
- 2020-07-13 WO PCT/EP2020/025330 patent/WO2021008732A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
WO2021008732A1 (fr) | 2021-01-21 |
US20220264720A1 (en) | 2022-08-18 |
DE102019005029A1 (de) | 2021-01-21 |
CN114175857A (zh) | 2022-03-11 |
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Legal Events
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Effective date: 20220218 |
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DAX | Request for extension of the european patent (deleted) | ||
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH |
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P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230519 |