EP3603344A1 - Electronic circuit for driving a string of light-emitting diodes - Google Patents
Electronic circuit for driving a string of light-emitting diodesInfo
- Publication number
- EP3603344A1 EP3603344A1 EP18717700.1A EP18717700A EP3603344A1 EP 3603344 A1 EP3603344 A1 EP 3603344A1 EP 18717700 A EP18717700 A EP 18717700A EP 3603344 A1 EP3603344 A1 EP 3603344A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- string
- terminal
- emitting diodes
- light
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 52
- 230000003247 decreasing effect Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting 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
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102017000032546A IT201700032546A1 (en) | 2017-03-24 | 2017-03-24 | Electronic circuit for driving a string of light-emitting diodes |
PCT/IB2018/051963 WO2018172980A1 (en) | 2017-03-24 | 2018-03-23 | Electronic circuit for driving a string of light-emitting diodes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3603344A1 true EP3603344A1 (en) | 2020-02-05 |
EP3603344B1 EP3603344B1 (en) | 2022-07-20 |
Family
ID=59811717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18717700.1A Active EP3603344B1 (en) | 2017-03-24 | 2018-03-23 | Electronic circuit for driving a string of light-emitting diodes |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3603344B1 (en) |
BR (1) | BR112019019975A2 (en) |
ES (1) | ES2928692T3 (en) |
IT (1) | IT201700032546A1 (en) |
LT (1) | LT3603344T (en) |
MA (1) | MA48993B1 (en) |
WO (1) | WO2018172980A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900017960A1 (en) | 2019-10-04 | 2021-04-04 | Cynergi S R L | LED lamp for lighting with radio control |
EP4072248A1 (en) * | 2021-04-08 | 2022-10-12 | Tepcomp Oy | Flicker reduction circuit |
WO2023050290A1 (en) * | 2021-09-30 | 2023-04-06 | 深圳市汇顶科技股份有限公司 | Sine wave pulse signal generating circuit and related electronic apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011003931A1 (en) * | 2011-02-10 | 2012-08-16 | Osram Ag | Control of several series-connected bulbs |
US8823271B2 (en) * | 2011-12-27 | 2014-09-02 | Cree, Inc. | Solid-state lighting apparatus including an energy storage module for applying power to a light source element during low power intervals and methods of operating the same |
KR101552824B1 (en) * | 2013-02-28 | 2015-09-14 | 주식회사 실리콘웍스 | Circuit to control led lighting apparatus |
-
2017
- 2017-03-24 IT IT102017000032546A patent/IT201700032546A1/en unknown
-
2018
- 2018-03-23 LT LTEPPCT/IB2018/051963T patent/LT3603344T/en unknown
- 2018-03-23 EP EP18717700.1A patent/EP3603344B1/en active Active
- 2018-03-23 ES ES18717700T patent/ES2928692T3/en active Active
- 2018-03-23 MA MA48993A patent/MA48993B1/en unknown
- 2018-03-23 WO PCT/IB2018/051963 patent/WO2018172980A1/en unknown
- 2018-03-23 BR BR112019019975A patent/BR112019019975A2/en active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
ES2928692T3 (en) | 2022-11-22 |
EP3603344B1 (en) | 2022-07-20 |
WO2018172980A1 (en) | 2018-09-27 |
BR112019019975A2 (en) | 2020-04-28 |
MA48993A (en) | 2020-02-05 |
LT3603344T (en) | 2023-01-25 |
MA48993B1 (en) | 2022-10-31 |
IT201700032546A1 (en) | 2018-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6577072B2 (en) | Power supply and LED lamp device | |
US20120256550A1 (en) | Led driving circuit | |
US9095021B2 (en) | Circuit arrangement for operating at least a first and a second cascade of LEDs | |
WO2015142463A1 (en) | Led (light-emitting diode) -string-derived controller power supply | |
CN109076669B (en) | Lighting device for motor vehicle | |
EP3603344B1 (en) | Electronic circuit for driving a string of light-emitting diodes | |
US9713207B2 (en) | Driver module for driving LEDs | |
KR20160079075A (en) | Circuit assembly for operating at least a first and a second cascade of leds | |
CN107736080B (en) | Light modulation device | |
CA2892775A1 (en) | Led driver circuit using flyback converter to reduce observable optical flicker by reducing rectified ac mains ripple | |
EP3329743B1 (en) | Direct ac driving circuit and luminaire | |
AU2011293429A1 (en) | Solid state lighting driver with THDi bypass circuit | |
JP6174647B2 (en) | Low flicker LED lighting equipment | |
US11172551B2 (en) | Solid-state lighting with a driver controllable by a power-line dimmer | |
EP3072361A2 (en) | Driver module for driving leds | |
KR101518554B1 (en) | Power supplies to drive the multiple LED modules and the lighting apparatus including the same | |
EP3596801B1 (en) | Emergency converter output switching | |
CN109600877B (en) | Driver for LED lamp | |
EP3448125B1 (en) | Lighting system, and related lighting module | |
GB2536851A (en) | Driver module for driving LEDs | |
US10390391B2 (en) | Driver for a light emitting diode (LED) lighting system | |
EP3871470A1 (en) | Electronic controller apparatus and control method | |
WO2015128986A1 (en) | Led light emission device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20191023 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
RAV | Requested validation state of the european patent: fee paid |
Extension state: MA Effective date: 20191024 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 602018038122 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: H05B0033080000 Ipc: H05B0045440000 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H05B 45/48 20200101ALI20211231BHEP Ipc: H05B 45/44 20200101AFI20211231BHEP |
|
INTG | Intention to grant announced |
Effective date: 20220131 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602018038122 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1506419 Country of ref document: AT Kind code of ref document: T Effective date: 20220815 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: MA Ref legal event code: VAGR Ref document number: 48993 Country of ref document: MA Kind code of ref document: B1 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2928692 Country of ref document: ES Kind code of ref document: T3 Effective date: 20221122 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20220720 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221121 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221020 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1506419 Country of ref document: AT Kind code of ref document: T Effective date: 20220720 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221120 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221021 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602018038122 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LT Payment date: 20230315 Year of fee payment: 6 Ref country code: FR Payment date: 20230323 Year of fee payment: 6 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230321 Year of fee payment: 6 Ref country code: DE Payment date: 20230328 Year of fee payment: 6 |
|
26N | No opposition filed |
Effective date: 20230421 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20230424 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20220720 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230323 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20230331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230323 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230323 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230331 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230323 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230323 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230331 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LT Payment date: 20240322 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240328 Year of fee payment: 7 |