JPWO2023188973A1 - - Google Patents
Info
- Publication number
- JPWO2023188973A1 JPWO2023188973A1 JP2024511424A JP2024511424A JPWO2023188973A1 JP WO2023188973 A1 JPWO2023188973 A1 JP WO2023188973A1 JP 2024511424 A JP2024511424 A JP 2024511424A JP 2024511424 A JP2024511424 A JP 2024511424A JP WO2023188973 A1 JPWO2023188973 A1 JP WO2023188973A1
- Authority
- JP
- Japan
- 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
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]
- H05B45/10—Controlling the intensity of the light
-
- 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
-
- 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
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022060073 | 2022-03-31 | ||
| PCT/JP2023/005738 WO2023188973A1 (ja) | 2022-03-31 | 2023-02-17 | 発光素子駆動装置、発光装置、及び車両 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2023188973A1 true JPWO2023188973A1 (https=) | 2023-10-05 |
| JPWO2023188973A5 JPWO2023188973A5 (https=) | 2024-12-10 |
Family
ID=88200420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024511424A Pending JPWO2023188973A1 (https=) | 2022-03-31 | 2023-02-17 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250016898A1 (https=) |
| JP (1) | JPWO2023188973A1 (https=) |
| WO (1) | WO2023188973A1 (https=) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100628717B1 (ko) * | 2005-02-26 | 2006-09-28 | 삼성전자주식회사 | Ｌｅｄ구동장치 |
| JP5175427B2 (ja) * | 2005-05-31 | 2013-04-03 | Ｎｅｃディスプレイソリューションズ株式会社 | 発光素子駆動装置 |
| US7777424B2 (en) * | 2006-08-18 | 2010-08-17 | Dialight Corporation | Method and apparatus for controlling an input voltage to a light emitting diode |
| JP2008060222A (ja) * | 2006-08-30 | 2008-03-13 | Seiko Epson Corp | 発光素子駆動装置およびその方法 |
| US20080258637A1 (en) * | 2007-04-20 | 2008-10-23 | Shun Kei Leung | Light emitting element driver and control method therefor |
| US7952297B2 (en) * | 2007-07-27 | 2011-05-31 | Rohm Co., Ltd. | Driving device for providing light dimming control of light-emitting element |
| TW200934294A (en) * | 2008-01-24 | 2009-08-01 | Everbright Optech Inc | Apparatus for controlling light emitting devices |
| US8174213B2 (en) * | 2008-12-05 | 2012-05-08 | Richard Landry Gray | Universal input voltage light emitting device |
| US8373356B2 (en) * | 2008-12-31 | 2013-02-12 | Stmicroelectronics, Inc. | System and method for a constant current source LED driver |
| JP4975856B2 (ja) * | 2010-09-24 | 2012-07-11 | シャープ株式会社 | 照明装置用集積回路および照明装置 |
| CN102076149B (zh) * | 2010-11-15 | 2012-01-04 | 凹凸电子（武汉）有限公司 | 光源驱动电路及控制光源亮度的控制器和方法 |
| JP2012160392A (ja) * | 2011-02-02 | 2012-08-23 | Stanley Electric Co Ltd | 点灯制御装置 |
| JP2014031157A (ja) * | 2012-07-10 | 2014-02-20 | Koito Mfg Co Ltd | 車両用ランプ |
| JP6011355B2 (ja) * | 2013-01-22 | 2016-10-19 | ローム株式会社 | 発振回路 |
| US10149362B2 (en) * | 2013-08-01 | 2018-12-04 | Power Integrations, Inc. | Solid state lighting control with dimmer interface to control brightness |
| TWI611722B (zh) * | 2013-09-06 | 2018-01-11 | Leadtrend Technology Corporation | 發光二極體之控制電路 |
| JP6799939B2 (ja) * | 2016-04-22 | 2020-12-16 | ローム株式会社 | 発光素子駆動用半導体集積回路、発光素子駆動装置、発光装置、車両 |
| CN111670609B (zh) * | 2018-01-29 | 2022-11-04 | 罗姆股份有限公司 | 发光元件驱动控制装置、发光元件驱动电路装置 |
| WO2023013427A1 (ja) * | 2021-08-06 | 2023-02-09 | ローム株式会社 | レベルシフタ、半導体装置、スイッチング電源、発光装置 |
| JP2023088415A (ja) * | 2021-12-15 | 2023-06-27 | 富士電機株式会社 | 集積回路、及び電源回路 |
-
2023
- 2023-02-17 JP JP2024511424A patent/JPWO2023188973A1/ja active Pending
- 2023-02-17 WO PCT/JP2023/005738 patent/WO2023188973A1/ja not_active Ceased
-
2024
- 2024-09-20 US US18/891,075 patent/US20250016898A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023188973A1 (ja) | 2023-10-05 |
| US20250016898A1 (en) | 2025-01-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240905 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20260209 |