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DE10318780A1 - Energising circuit for generating several controlled, constant currents through consumers, e.g. LEDs, with brightness of different colours individually adjustable - Google Patents

Energising circuit for generating several controlled, constant currents through consumers, e.g. LEDs, with brightness of different colours individually adjustable Download PDF

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Publication number
DE10318780A1
DE10318780A1 DE2003118780 DE10318780A DE10318780A1 DE 10318780 A1 DE10318780 A1 DE 10318780A1 DE 2003118780 DE2003118780 DE 2003118780 DE 10318780 A DE10318780 A DE 10318780A DE 10318780 A1 DE10318780 A1 DE 10318780A1
Authority
DE
Germany
Prior art keywords
generating
regulated
constant currents
drive circuit
supply voltage
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.)
Withdrawn
Application number
DE2003118780
Other languages
German (de)
Inventor
Meike Prof. Barfuß
Lukas Joslowski
Ulrich Prof. Dr. Kuipers
Uwe Segtrop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BARFUSS, MEIKE, PROF. DIPL.-ING., 58509 LUEDENSCHEID
Joslowski Lukas 58644 Iserlohn De
KUIPERS, ULRICH, PROF. DR.-ING., 57462 OLPE, DE
SEGTROP, UWE, 58730 FR?NDENBERG, DE
Original Assignee
FACHHOCHSCHULE SUEDWESTFALEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FACHHOCHSCHULE SUEDWESTFALEN filed Critical FACHHOCHSCHULE SUEDWESTFALEN
Priority to DE2003118780 priority Critical patent/DE10318780A1/en
Publication of DE10318780A1 publication Critical patent/DE10318780A1/en
Withdrawn legal-status Critical Current

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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]
    • H05B45/40—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]
    • H05B45/30—Driver circuits
    • H05B45/347—Dynamic headroom control [DHC]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Circuit generates several controlled, constant currents for each consumer, e.g. LED (LED11-LEDMN). It has common adjustable supply voltage (U1-UM) feeding individual constant current sources (T-Tm).Supply voltage strength is adjusted to each constant current source, feeding generally, or at the moment, highest impedance, thus requiring highest supply voltage. Supply voltage strength is so adjusted to minimum that, at one current source, it is just sufficient for its operation.

Description

Beschreibung der Erfindungdescription the invention

Die Erfindung betrifft eine Ansteuerschaltung zum Erzeugen von zwei oder mehr gesteuerten oder geregelten Konstantströmen durch zumindest je einen Verbraucher, z. B. eine LED, mit einer einzigen Versorgungsspannung, wobei sich die Höhe der Versorgungsspannung nach der Art, der Anzahl und der Verschaltung der Verbraucher richtet und so der Wirkungsgrad automatisch auf die bestehende Schaltung angepasst wird.The The invention relates to a drive circuit for generating two or more controlled or regulated constant currents at least one consumer, e.g. B. an LED with a single supply voltage, being the height the supply voltage according to the type, the number and the wiring the consumer straightens up and thus the efficiency automatically the existing circuit is adapted.

Stand der TechnikState of technology

Um Leuchtdioden unabhängig von Temperatureinflüssen und Streuungen mit möglichst konstanter Helligkeit betreiben zu können, werden sie mit Konstantstrom betrieben. Um mit einer Stromquelle möglichst viele LEDs betreiben zu können und damit den schaltungstechnischen Aufwand zu minimieren, werden häufig so viele gleiche LEDs in Reihe geschaltet wie möglich. Falls weitere LEDs benötigt werden, werden für diese weitere Stromquellen, im folgenden Stränge genannt, parallel geschaltet.Around LEDs independent of temperature influences and scatter with as much as possible To be able to operate with constant brightness, they are operated with constant current operated. To operate as many LEDs as possible with one power source to be able to and thus to minimize the circuitry outlay frequently as many of the same LEDs connected in series as possible. If additional LEDs are required, be for these other current sources, hereinafter called strands, connected in parallel.

Nachteile im heutigen Stand der Technikdisadvantage in the current state of the art

In einer bestehenden Schaltung, z. B. nach DE 198 41 270A1 , stellt sich die Versorgungsspannung zwar auf die Höhe der Last ein, nimmt also mit steigender Anzahl von LEDs zu, aber es kann nur ein Strang versorgt werden. Falls mehrere Stränge versorgt werden müssen, ist für jeden Strang eine eigene Versorgungsspannung, und damit ein erheblicher schaltungstechnischer Aufwand erforderlich.In an existing circuit, e.g. B. after DE 198 41 270A1 , the supply voltage adapts to the level of the load, i.e. increases with an increasing number of LEDs, but only one strand can be supplied. If several strings have to be supplied, a separate supply voltage is required for each string, and therefore a considerable outlay on circuitry is required.

In einer anderen bestehenden Lösung wird der geregelte Strom der ersten Stromquelle mit Hilfe einer Stromspiegelschaltung in die übrigen Stränge eingeprägt. Damit kann nur der erste Strom von außen verstellt werden.In another existing solution is the regulated current of the first power source using a Current mirror circuit in the rest Strands embossed. In order to can only the first stream from the outside be adjusted.

Sollen die Ströme in den einzelnen Strängen unabhängig voneinander verstellt werden, so ist das bisher mit einer sich auf die Last einstellenden Versorgungsspannung nicht möglich. Bestehende Lösungen mit einer fest eingestellten Versorgungsspannung gehen auf Kosten des Wirkungsgrads.Should the streams in the individual strands independently of each other be adjusted so far so far with one on the load setting supply voltage not possible. Existing solutions with a fixed supply voltage are at the expense of Efficiency.

Vorteilhaftigkeit der Erfindungfavorability the invention

Die Erfindung hat für viele Anwendungen einen besseren Wirkungsgrad und/oder einen geringeren schaltungstechnischen Aufwand als bisherige Lösungen.The Invention has for many applications have better efficiency and / or less circuitry complexity than previous solutions.

Dadurch, dass sich die Versorgungsspannung der Beschaltung mit LEDs anpasst, kann der Anwender „ohne Nachzudenken" unterschiedliche Lasten, z.B. 0–10 weiße LEDs oder 0–20 rote LEDs, in die einzelnen Stränge schalten, so das ein Vorteil in der Bedienerfreundlichkeit entsteht.Thereby, that the supply voltage adapts to the wiring with LEDs, the user can “without Thinking "different loads, e.g. 0-10 white LEDs or 0-20 red LEDs, in the individual strands switch, so that there is an advantage in user friendliness.

Claims (13)

Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen durch zumindest je einen Verbraucher z. B. eine LED, mit einer gemeinsamen in der Größe einstellbaren Versorgungsspannung, die die einzelnen Konstantstromquellen speist, dadurch gekennzeichnet, dass sich die Versorgungsspannung in ihrer Größe jeweils auf die Konstantstromquelle einstellt, die generell oder zum jeweiligen Zeitpunkt die größte Gesamtimpedanz speist und damit die größte Versorgungsspannung erfordert. Dabei wird der Betrag der Versorgungsspannung so minimal eingestellt, dass der Betrag der auftretenden Spannung über einer der Stromquellen gerade zu deren Betrieb ausreicht.Control circuit for generating two or more regulated or controlled constant currents by at least one consumer z. B. an LED, with a common adjustable supply voltage that feeds the individual constant current sources, characterized in that the supply voltage adjusts in size to the constant current source that generally or at the respective time feeds the largest total impedance and thus the largest Supply voltage required. The amount of the supply voltage is set so minimal that the amount of voltage occurring across one of the current sources is just sufficient for its operation. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1, dadurch gekennzeichnet, dass der Spannungsabfall über den Stromquellen gemessen wird und mit Hilfe einer Minimalwert-Auswahlschaltung die erforderliche Versorgungsspannung bestimmt und dann eingestellt wird.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1, characterized characterized that the voltage drop across the current sources is measured and with the help of a minimum value selection circuit the required Supply voltage is determined and then set. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 und 2 dadurch gekennzeichnet, dass die Minimalwertauswahl mit Dioden (Analoge Minimalwertbildung) oder auf andere Weise hardwaretechnisch, z.B. mit Komparatoren und/oder Logikbausteinen wie Logikgatter oder PLDs realisiert ist.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 and 2 thereby characterized that the minimum value selection with diodes (analog Minimum value formation) or other hardware technology, e.g. with comparators and / or logic modules such as logic gates or PLDs is realized. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Minimalwertauswahl mit Hilfe von Komparatoren und/oder AD-Wandlern und/oder softwaretechnisch erfolgt.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 and 2, characterized in that the minimum value selection with the help of comparators and / or AD converters and / or software technology. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass die Stromquellen pulsweitenmoduliert mit vorzugsweise synchroner Ansteuerung aller an der Versorgungsspannung arbeitenden Stromquellen angesteuert werden.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized in that the current sources are preferably pulse width modulated synchronous control of all those working on the supply voltage Power sources can be controlled. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass die Stromquellen analog angesteuert werden.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized that the current sources are controlled analog. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass die Stromsollwerte an den einzelnen Stromquellen gleich oder unterschiedlich sein können.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized that the current setpoints at the individual power sources can be the same or different. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass die Stromsollwerte an den einzelnen Stromquellen fest eingestellt sind.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized that the current setpoints at the individual power sources are fixed. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass die Stromsollwerte an den einzelnen Stromquellen variabel sind.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized that the current setpoints at the individual power sources are variable. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass Art und Anzahl der Lasten für jede Stromquelle gleich oder unterschiedlich sein können, wobei auch eine Änderung der Lasten während des Betriebs zulässig ist.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized in that the type and number of loads are the same for each power source or can be different being a change too of loads during operation permitted is. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 dadurch gekennzeichnet, dass LEDs in unterschiedlichen Farben mit gleichen oder unterschiedlichen Intensitäten angesteuert werden können.Drive circuit for generating two or more regulated or controlled constant currents according to claim 1 thereby characterized that LEDs in different colors with the same or different intensities can be controlled. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 1 und 11, dadurch gekennzeichnet, dass so mit einer Spannungsversorgung gezielte Farbmischungen mit LEDs erfolgen können.Drive circuit for generating two or more regulated or controlled constant currents according to claims 1 and 11, characterized in that so targeted with a power supply Color mixing with LEDs can be done. Ansteuerschaltung zum Erzeugen von zwei oder mehr geregelten oder gesteuerten Konstantströmen nach Anspruch 10 dadurch gekennzeichnet, dass durch andere Schaltungselemente, z.B. Z-Dioden ersetzte Leuchtdioden, automatisch zu einer wirkungsgradoptimalen Anpassung der Versorgungsspannung führen, wobei die Versorgungsspannung erst zum Zeitpunkt des Ausfalls der LED durch Leerlauf erhöht wird.Drive circuit for generating two or more regulated or controlled constant currents according to claim 10 thereby characterized by other circuit elements, e.g. Zener diodes replaced light emitting diodes, automatically at an efficiency optimal Adjust the supply voltage, the supply voltage first is increased by idle at the time of failure of the LED.
DE2003118780 2003-04-23 2003-04-23 Energising circuit for generating several controlled, constant currents through consumers, e.g. LEDs, with brightness of different colours individually adjustable Withdrawn DE10318780A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003118780 DE10318780A1 (en) 2003-04-23 2003-04-23 Energising circuit for generating several controlled, constant currents through consumers, e.g. LEDs, with brightness of different colours individually adjustable

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Application Number Priority Date Filing Date Title
DE2003118780 DE10318780A1 (en) 2003-04-23 2003-04-23 Energising circuit for generating several controlled, constant currents through consumers, e.g. LEDs, with brightness of different colours individually adjustable

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028403A1 (en) * 2005-06-20 2006-12-28 Austriamicrosystems Ag Power source arrangement and method for operating an electrical load
WO2007077007A1 (en) * 2006-01-03 2007-07-12 Vossloh-Schwabe Optoelektronik Gmbh & Co. Kg Interconnected arrangement of individual modules having at least one light-emitting diode chip
DE102007004877A1 (en) * 2007-01-31 2008-08-14 Infineon Technologies Austria Ag Circuit arrangement for controlling LEDs, has control circuit supplying power dissipation signal for each power source circuit depending on power loss in power source circuits and producing control signal depending on dissipation signal
DE102007045777A1 (en) * 2007-09-25 2009-04-09 Continental Automotive Gmbh Scalable LED control with minimized power loss
DE102007051793A1 (en) * 2007-10-30 2009-05-07 Texas Instruments Deutschland Gmbh LED driver with adaptive algorithm for storage capacitor precharge
DE102008030365A1 (en) * 2008-06-26 2009-08-20 Continental Automotive Gmbh Individual light sources i.e. LEDs, controlling device for lighting device in motor vehicle i.e. aircraft, has current regulation unit that is assigned to parallel circuits, where individual light sources are arranged in parallel circuits
DE102008018236A1 (en) * 2008-04-10 2009-10-15 Osram Gesellschaft mit beschränkter Haftung Thermal variation equalization and/or partial compensation circuit, has current source connected with temperature compensation unit for compensating thermal variations of source, where unit has diode with negative temperature coefficient
DE102010015088A1 (en) * 2010-03-19 2011-09-22 Dilitronics Gmbh Power dissipation reduction circuit arrangement for linear current driver of LED utilized in e.g. optical system, has driver stage whose output is connected with LEDs, where power supply voltage of each LED is adjusted by varying variable
US8547030B2 (en) 2010-02-04 2013-10-01 Ams Ag Current source, current source arrangement and their use
DE102005056338B4 (en) * 2005-11-25 2016-05-25 Ams Ag Voltage converter and voltage conversion method
DE102016116488A1 (en) 2016-08-29 2017-10-05 Elmos Semiconductor Aktiengesellschaft Device for fault-tolerant power supply of LEDs based on the voltage drops across the LEDs and their power sources
DE102017119853A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for wireless control of the operating voltage for LED lighting
DE102017119852A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for power-line-based regulation of the operating voltage for consumers with consumer-related fixed operating voltage (in particular LEDs)
DE102017119847A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Error-prone and energy-efficient power supply for LEDs based on the detection of voltage drops across their power sources
DE102017119850A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for power-line based control of the supply voltage of LEDs
DE102017119849A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for fault-tolerant and energy-efficient power supply for LEDs
DE102017119848A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Error-prone and energy-efficient power supply for LEDs based on the detection of voltage drops across the LEDs
DE102017119851A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for the wireless regulation of the operating voltage for consumers with consumer-related fixed operating voltage (in particular LEDs)
BE1025889B1 (en) * 2017-07-24 2019-09-13 Melexis Technologies Nv Supply voltage calibration for lighting systems
WO2020233751A1 (en) 2019-05-23 2020-11-26 Elmos Semiconductor Aktiengesellschaft Method and apparatuses for regulating the output voltage of a voltage regulator
DE102019113864A1 (en) * 2019-05-23 2020-11-26 Elmos Semiconductor Se Methods and devices for regulating the output voltage of a voltage regulator
EP3917287A1 (en) 2020-05-26 2021-12-01 Marelli Automotive Lighting Reutlingen (Germany) GmbH Control circuit and method for controlling a plurality of led devices connected in parallel and lighting device for a motor vehicle with such a control circuit
DE102008021534B4 (en) 2008-04-30 2024-12-19 Automotive Lighting Reutlingen Gmbh Lighting device for a motor vehicle and method for operating a lighting device for a motor vehicle

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8063585B2 (en) 2005-06-20 2011-11-22 Austriamicrosystems Ag Power supply system and method for the operation of an electrical load
DE102005028403A1 (en) * 2005-06-20 2006-12-28 Austriamicrosystems Ag Power source arrangement and method for operating an electrical load
DE102005028403B4 (en) * 2005-06-20 2013-11-21 Austriamicrosystems Ag Power source arrangement and method for operating an electrical load
DE102005056338B4 (en) * 2005-11-25 2016-05-25 Ams Ag Voltage converter and voltage conversion method
WO2007077007A1 (en) * 2006-01-03 2007-07-12 Vossloh-Schwabe Optoelektronik Gmbh & Co. Kg Interconnected arrangement of individual modules having at least one light-emitting diode chip
DE102006000810A1 (en) * 2006-01-03 2007-07-12 Vossloh-Schwabe Optoelectronic Gmbh & Co. Kg Interconnected arrangement of at least one LED chip having individual modules
DE102006000810B4 (en) * 2006-01-03 2007-10-04 Vossloh-Schwabe Optoelectronic Gmbh & Co. Kg Interconnected arrangement of at least one LED chip having individual modules
US8446100B2 (en) 2006-01-03 2013-05-21 Vossloh-Schwabe Optoelektronik Gmbh & Co. Kg Interconnected arrangement of individual modules having at least one light-emitting diode chip
DE102007004877A1 (en) * 2007-01-31 2008-08-14 Infineon Technologies Austria Ag Circuit arrangement for controlling LEDs, has control circuit supplying power dissipation signal for each power source circuit depending on power loss in power source circuits and producing control signal depending on dissipation signal
DE102007045777A1 (en) * 2007-09-25 2009-04-09 Continental Automotive Gmbh Scalable LED control with minimized power loss
US8044610B2 (en) 2007-10-30 2011-10-25 Texas Instruments Incorporated LED driver with adaptive algorithm for storage capacitor pre-charge
DE102007051793B4 (en) * 2007-10-30 2009-08-27 Texas Instruments Deutschland Gmbh LED driver with adaptive algorithm for storage capacitor precharge
DE102007051793A1 (en) * 2007-10-30 2009-05-07 Texas Instruments Deutschland Gmbh LED driver with adaptive algorithm for storage capacitor precharge
DE102008018236A1 (en) * 2008-04-10 2009-10-15 Osram Gesellschaft mit beschränkter Haftung Thermal variation equalization and/or partial compensation circuit, has current source connected with temperature compensation unit for compensating thermal variations of source, where unit has diode with negative temperature coefficient
DE102008021534B4 (en) 2008-04-30 2024-12-19 Automotive Lighting Reutlingen Gmbh Lighting device for a motor vehicle and method for operating a lighting device for a motor vehicle
DE102008030365A1 (en) * 2008-06-26 2009-08-20 Continental Automotive Gmbh Individual light sources i.e. LEDs, controlling device for lighting device in motor vehicle i.e. aircraft, has current regulation unit that is assigned to parallel circuits, where individual light sources are arranged in parallel circuits
US8547030B2 (en) 2010-02-04 2013-10-01 Ams Ag Current source, current source arrangement and their use
DE102010015088A1 (en) * 2010-03-19 2011-09-22 Dilitronics Gmbh Power dissipation reduction circuit arrangement for linear current driver of LED utilized in e.g. optical system, has driver stage whose output is connected with LEDs, where power supply voltage of each LED is adjusted by varying variable
DE102016116487A1 (en) 2016-08-29 2017-10-05 Elmos Semiconductor Aktiengesellschaft Device for fault-tolerant power supply of LEDs based on the voltage drops across the LEDs
DE102016116483B4 (en) 2016-08-29 2018-08-02 Elmos Semiconductor Aktiengesellschaft Error-prone and energy-efficient power supply for LEDs based on the detection of voltage drops across the LEDs and their power sources
DE102016116489A1 (en) 2016-08-29 2017-10-05 Elmos Semiconductor Aktiengesellschaft Device for fault-tolerant power supply of LEDs based on the voltage drops across their power sources
DE102016116497B3 (en) * 2016-08-29 2018-01-11 Elmos Semiconductor Aktiengesellschaft Method for fault-tolerant power supply of LEDs based on the voltage drops across their power sources
DE102017119853A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for wireless control of the operating voltage for LED lighting
DE102017119852A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for power-line-based regulation of the operating voltage for consumers with consumer-related fixed operating voltage (in particular LEDs)
DE102017119847A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Error-prone and energy-efficient power supply for LEDs based on the detection of voltage drops across their power sources
DE102017119850A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for power-line based control of the supply voltage of LEDs
DE102017119849A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for fault-tolerant and energy-efficient power supply for LEDs
DE102017119848A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Error-prone and energy-efficient power supply for LEDs based on the detection of voltage drops across the LEDs
DE102017119851A1 (en) 2016-08-29 2018-03-01 Elmos Semiconductor Aktiengesellschaft Method for the wireless regulation of the operating voltage for consumers with consumer-related fixed operating voltage (in particular LEDs)
DE102016116483A1 (en) 2016-08-29 2017-10-05 Elmos Semiconductor Aktiengesellschaft Error-prone and energy-efficient power supply for LEDs based on the detection of voltage drops across the LEDs and their power sources
DE102016116488A1 (en) 2016-08-29 2017-10-05 Elmos Semiconductor Aktiengesellschaft Device for fault-tolerant power supply of LEDs based on the voltage drops across the LEDs and their power sources
BE1025889B1 (en) * 2017-07-24 2019-09-13 Melexis Technologies Nv Supply voltage calibration for lighting systems
WO2020233751A1 (en) 2019-05-23 2020-11-26 Elmos Semiconductor Aktiengesellschaft Method and apparatuses for regulating the output voltage of a voltage regulator
DE102019113858A1 (en) * 2019-05-23 2020-11-26 Elmos Semiconductor Se Methods and devices for regulating the output voltage of a voltage regulator
DE102019113864A1 (en) * 2019-05-23 2020-11-26 Elmos Semiconductor Se Methods and devices for regulating the output voltage of a voltage regulator
DE102019113864B4 (en) 2019-05-23 2023-06-15 Elmos Semiconductor Se Process for controlling the output voltage of a voltage regulator
US11751307B2 (en) 2019-05-23 2023-09-05 Elmos Semiconductor Se Method and apparatuses for controlling the output voltage of a voltage regulator
US11968755B2 (en) 2019-05-23 2024-04-23 Elmos Semiconductor Se Method and apparatuses for regulating the output voltage of a voltage regulator
US12160941B2 (en) 2019-05-23 2024-12-03 Elmos Semiconductor Se Method and apparatuses for controlling the output voltage of a voltage regulator
EP3917287A1 (en) 2020-05-26 2021-12-01 Marelli Automotive Lighting Reutlingen (Germany) GmbH Control circuit and method for controlling a plurality of led devices connected in parallel and lighting device for a motor vehicle with such a control circuit
DE102020114075A1 (en) 2020-05-26 2021-12-02 Marelli Automotive Lighting Reutlingen (Germany) GmbH Control circuit and method for controlling a plurality of LED arrangements and lighting device connected in parallel to one another for a motor vehicle with such a control circuit

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