JP7053967B2 - クラス2の回路保護 - Google Patents
クラス2の回路保護 Download PDFInfo
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- JP7053967B2 JP7053967B2 JP2021557492A JP2021557492A JP7053967B2 JP 7053967 B2 JP7053967 B2 JP 7053967B2 JP 2021557492 A JP2021557492 A JP 2021557492A JP 2021557492 A JP2021557492 A JP 2021557492A JP 7053967 B2 JP7053967 B2 JP 7053967B2
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- load
- voltage
- voltage peak
- current
- lighting device
- Prior art date
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
-
- 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]
- H05B45/20—Controlling the colour of the light
- H05B45/24—Controlling the colour 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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series array of LEDs
-
- 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]
- H05B45/20—Controlling the colour of the light
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
Claims (8)
- 電流を生成する電流源と、
前記電流を受け取る第1負荷及び第2負荷と、
前記第1負荷へ流れる電流及び前記第2負荷へ流れる電流をそれぞれ管理する第1半導体及び第2半導体と、
前記第1負荷と前記第2負荷との間で前記電流のバランスを取るよう前記電流源と前記第1負荷及び前記第2負荷との間に配置されるインダクタと、
前記第1負荷及び前記第2負荷の電圧ピークをモニタする検出器と、
前記検出器から前記電圧ピークの測定値を受け取り、前記電圧ピークが少なくとも電圧ピーク閾値であるときを決定する電圧コントローラであって、前記電圧ピークの前記測定値に基づいて、前記電流源によって生成される前記電流のための設定を調節するよう構成される電圧コントローラと、
前記第1負荷及び前記第2負荷のうちの1つが故障して開回路をもたらしており、前記第1負荷及び前記第2負荷のうちの他方の1つが機能し続けており、機能している負荷が少なくとも前記電圧ピーク閾値である前記電圧ピークを経験するときに、前記検出器から前記電圧ピークの測定値を受け取り、前記電圧ピークが少なくとも比較器閾値であるときを決定する比較器であって、前記電圧ピークが少なくとも前記比較器閾値であるときに信号を生成するよう構成される比較器と、
前記信号を受信し、前記第1半導体及び前記第2半導体を動作停止させるよう構成される半導体コントローラとを有する照明デバイス。 - 前記第1負荷及び前記第2負荷が発光ダイオードである請求項1に記載の照明デバイス。
- 前記電圧ピークが前記電圧ピーク閾値未満であるときは、前記電圧コントローラが、前記電流源によって生成される前記電流のための最大設定を選択するよう構成され、前記最大設定が、所定の電流設定及び/又は準拠規格に基づいている請求項1に記載の照明デバイス。
- 前記準拠規格が、ULのクラス2準拠の規格である請求項3に記載の照明デバイス。
- 前記比較器が、前記電圧ピークの前記測定値に導入されるラグを補償するようヒステリシスを備えて構成される請求項1に記載の照明デバイス。
- 前記照明デバイスが、調整可能な白色の回路である請求項1に記載の照明デバイス。
- 前記第1負荷が、6500Kの第1照明温度を有する第1照明構成要素であり、前記第2負荷が、2700Kの第2照明温度を有する第2照明構成要素である請求項5に記載の照明デバイス。
- 前記第1負荷及び前記第2負荷のうちの1つが故障しており、前記第1負荷及び前記第2負荷のうちの他方の1つが機能し続けているときは、前記電圧ピークは少なくとも前記電圧ピーク閾値であり、前記機能している負荷は、少なくとも前記電圧ピーク閾値である前記電圧ピークを経験する請求項1に記載の照明デバイス。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962825106P | 2019-03-28 | 2019-03-28 | |
US62/825,106 | 2019-03-28 | ||
EP19167640.2 | 2019-04-05 | ||
EP19167640 | 2019-04-05 | ||
PCT/EP2020/058279 WO2020193599A1 (en) | 2019-03-28 | 2020-03-25 | Class 2 circuit protection |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022518975A JP2022518975A (ja) | 2022-03-17 |
JP7053967B2 true JP7053967B2 (ja) | 2022-04-12 |
Family
ID=69846148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021557492A Active JP7053967B2 (ja) | 2019-03-28 | 2020-03-25 | クラス2の回路保護 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11895746B2 (ja) |
EP (1) | EP3949687A1 (ja) |
JP (1) | JP7053967B2 (ja) |
CN (1) | CN113647201B (ja) |
WO (1) | WO2020193599A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120062031A1 (en) | 2010-09-15 | 2012-03-15 | Nxp B.V. | Control system for multi output dcdc converter |
JP2017165384A (ja) | 2016-03-18 | 2017-09-21 | ローム株式会社 | 発光素子駆動装置、発光装置、車両 |
US20180317297A1 (en) | 2016-04-27 | 2018-11-01 | Lumileds Llc | Dim to warm controller for leds |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2467591B (en) * | 2009-02-09 | 2013-06-26 | Novar Ed & S Ltd | Dimmer protection |
JP5600456B2 (ja) * | 2009-05-19 | 2014-10-01 | ローム株式会社 | 発光ダイオードの駆動回路およびそれを用いた発光装置およびディスプレイ装置、駆動回路の保護方法 |
KR101677730B1 (ko) * | 2009-08-14 | 2016-11-30 | 페어차일드코리아반도체 주식회사 | Led 발광 장치 |
US8179059B2 (en) * | 2009-10-15 | 2012-05-15 | Richtek Technology Corporation, R.O.C. | Circuit and method for controlling light emitting device, and integrated circuit therefor |
JP5942179B2 (ja) * | 2010-03-26 | 2016-06-29 | パナソニックIpマネジメント株式会社 | 負荷判別装置及びそれを用いた照明器具 |
DE102010054899B4 (de) * | 2010-12-17 | 2018-07-12 | Austriamicrosystems Ag | Regelkreisanordnung, Schaltungsanordnung und Verfahren zur Regelung einer mit einer Last gekoppelten Stromquelle |
CN103249211A (zh) * | 2012-02-09 | 2013-08-14 | 台达电子企业管理(上海)有限公司 | 照明装置、照明系统以及灯具 |
CN103152912B (zh) * | 2013-01-29 | 2015-01-14 | 矽力杰半导体技术(杭州)有限公司 | 一种改进的高效率led驱动电路和驱动方法 |
US9119235B2 (en) | 2013-05-06 | 2015-08-25 | Shenzhen China Star Optoeletronics Technology Co., Ltd | LED backlight source and liquid crystal display device |
TW201515513A (zh) * | 2013-10-01 | 2015-04-16 | Beyond Innovation Tech Co Ltd | 具有均流功能的負載驅動裝置 |
US9350253B1 (en) * | 2015-09-24 | 2016-05-24 | Osram Sylvania Inc. | Power supply fault protection circuit with primary side shutdown and restart |
JP6816627B2 (ja) * | 2017-04-17 | 2021-01-20 | 岩崎電気株式会社 | Led点灯回路及びled照明装置 |
US20180375324A1 (en) * | 2017-06-21 | 2018-12-27 | Nextek Power Systems, Inc. | Safety Protection for Class 2 Electrical Circuits |
US10716183B2 (en) * | 2017-07-02 | 2020-07-14 | Lumileds Llc | Method for wide-range CCT tuning that follows the black body line using two independently controlled current channels and three CCTs |
-
2020
- 2020-03-25 JP JP2021557492A patent/JP7053967B2/ja active Active
- 2020-03-25 EP EP20712373.8A patent/EP3949687A1/en active Pending
- 2020-03-25 WO PCT/EP2020/058279 patent/WO2020193599A1/en unknown
- 2020-03-25 CN CN202080025493.8A patent/CN113647201B/zh active Active
- 2020-03-25 US US17/598,263 patent/US11895746B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120062031A1 (en) | 2010-09-15 | 2012-03-15 | Nxp B.V. | Control system for multi output dcdc converter |
JP2017165384A (ja) | 2016-03-18 | 2017-09-21 | ローム株式会社 | 発光素子駆動装置、発光装置、車両 |
US20180317297A1 (en) | 2016-04-27 | 2018-11-01 | Lumileds Llc | Dim to warm controller for leds |
Also Published As
Publication number | Publication date |
---|---|
WO2020193599A1 (en) | 2020-10-01 |
US11895746B2 (en) | 2024-02-06 |
JP2022518975A (ja) | 2022-03-17 |
CN113647201B (zh) | 2024-05-10 |
US20220191985A1 (en) | 2022-06-16 |
EP3949687A1 (en) | 2022-02-09 |
CN113647201A (zh) | 2021-11-12 |
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