DE102014215632A1 - Control circuit for a control gear for bulbs - Google Patents

Control circuit for a control gear for bulbs Download PDF

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Publication number
DE102014215632A1
DE102014215632A1 DE102014215632.7A DE102014215632A DE102014215632A1 DE 102014215632 A1 DE102014215632 A1 DE 102014215632A1 DE 102014215632 A DE102014215632 A DE 102014215632A DE 102014215632 A1 DE102014215632 A1 DE 102014215632A1
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DE
Germany
Prior art keywords
transformer
flyback converter
isolated flyback
operating device
led
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Withdrawn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
DE102014215632.7A
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German (de)
Inventor
Phillip Jermyn
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.)
Tridonic GmbH and Co KG
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Tridonic GmbH and Co KG
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 Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of DE102014215632A1 publication Critical patent/DE102014215632A1/en
Withdrawn legal-status Critical Current

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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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • 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
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

Betriebsgerät für LED mit einem isolierten Sperrwandler aufweisend zumindest einen aktiv gesteuerten Schalter, wobei der isolierte Sperrwandler einen Transformator aufweist, dessen Primärwicklung in Serie zu dem aktiv gesteuerten Schalter angeordnet ist, zum Betreiben mindestens einer LED, wobei auf der Sekundärseite des isolierten Sperrwandlers ein aktiver Gleichrichter angeordnet ist, wobei der aktive Gleichrichter durch einen steuerbaren Schalter gebildet wird, dadurch gekennzeichnet, dass der steuerbare Schalter abhängig von der Sekundärspannung an dem Transformator mittels einer Totem Pole Schaltstufe angesteuert wird.Operating device for LED with an isolated flyback converter comprising at least one actively controlled switch, wherein the isolated flyback converter comprises a transformer whose primary winding is arranged in series with the actively controlled switch, for operating at least one LED, wherein on the secondary side of the isolated flyback converter, an active rectifier is arranged, wherein the active rectifier is formed by a controllable switch, characterized in that the controllable switch is driven depending on the secondary voltage to the transformer by means of a Totem Pole switching stage.

Description

Die Erfindung betrifft ein Betriebsgerät zum Betreiben von Leuchtmitteln, mit einer Schaltung gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an operating device for operating lamps, with a circuit according to the preamble of patent claim 1.

Technisches GebietTechnical area

Derartige Betriebsgeräte für Leuchtmittel werden zur Beleuchtung genutzt und in Beleuchtungssystemen verwendet, um die Leuchtmittel schonend zu betreiben und eine hohe Lebensdauer zu erreichen. Beispielsweise werden dabei Leuchtstofflampen als Leuchtmittel von Betriebsgeräten angesteuert und deren Wendeln geheizt.Such devices for lighting are used for lighting and used in lighting systems to operate the bulbs gently and to achieve a long life. For example, while fluorescent lamps are driven as lamps of operating devices and their coils heated.

Darstellung der ErfindungPresentation of the invention

Es ist die Aufgabe der Erfindung, ein Betriebsgerät mit einer Ansteuerschaltung bereitzustellen, welches ohne die oben genannten Nachteile auskommt bzw. unter einer deutlichen Reduzierung dieser Nachteile ermöglicht.It is the object of the invention to provide an operating device with a drive circuit, which manages without the disadvantages mentioned above or enables a significant reduction of these disadvantages.

Diese Aufgabe wird für eine gattungsgemäße Vorrichtung erfindungsgemäß durch die kennzeichnenden Merkmale der Patentansprüche 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved according to the invention for a generic device by the characterizing features of claims 1. Particularly advantageous embodiments of the invention are described in the subclaims.

Das erfindungsgemäße Betriebsgerät für LED weist einen isolierten Sperrwandler mit zumindest einem aktivgesteuerten Schalter auf, wobei der isolierte Sperrwandler einen Transformator aufweist, dessen Primärwicklung in Serie zu dem aktiv gesteuerten Schalter angeordnet ist, zum Betreiben mindestens einer LED, wobei auf der Sekundärseite des isolierten Sperrwandlers ein aktiver Gleichrichter angeordnet ist, wobei der aktive Gleichrichter durch einen steuerbaren Schalter gebildet wird, dadurch gekennzeichnet, dass der steuerbare Schalter abhängig von der Sekundärspannung an dem Transformator mittels einer Totem Pole Schaltstufe angesteuert wird.The LED operating device according to the invention has an isolated flyback converter with at least one active-controlled switch, wherein the isolated flyback converter comprises a transformer whose primary winding is arranged in series with the actively controlled switch, for operating at least one LED, wherein on the secondary side of the isolated flyback converter active rectifier is arranged, wherein the active rectifier is formed by a controllable switch, characterized in that the controllable switch depending on the Secondary voltage is controlled at the transformer by means of a Totem Pole switching stage.

Die Erfindung bezieht sich auch auf eine Beleuchtungsanlage unter Nutzung der erfindungsgemäßen Betriebsgeräte.The invention also relates to a lighting system using the operating devices according to the invention.

Beschreibung der bevorzugten AusführungsbeispieleDescription of the preferred embodiments

Nachfolgend soll die Erfindung anhand der beigefügten Zeichnung näher erläutert werden. Es zeigen:The invention will be explained in more detail with reference to the accompanying drawings. Show it:

1 einen Ausschnitt des Betriebsgerätes gemäß der Erfindung 1 a section of the operating device according to the invention

2 einen Ausschnitt des Betriebsgerätes gemäß der Erfindung 2 a section of the operating device according to the invention

Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels eines Betriebsgerätes erläutert.The invention will be explained with reference to an embodiment of an operating device.

Das Betriebsgerät für LED mit einem isolierten Sperrwandler aufweisend zumindest einen aktiv gesteuerten Schalter, wobei der isolierte Sperrwandler einen Transformator aufweist, dessen Primärwicklung in Serie zu dem aktiv gesteuerten Schalter angeordnet ist. Dieser dient zum Betreiben mindestens einer LED, wobei auf der Sekundärseite des isolierten Sperrwandlers ein aktiver Gleichrichter angeordnet ist, wobei der aktive Gleichrichter durch einen steuerbaren Schalter M1 gebildet wird. Der steuerbare Schalter M1 wird abhängig von der Sekundärspannung an dem Transformator (L2) mittels einer Totem Pole Schaltstufe (Q1, Q2) angesteuert. Die LED kann am Ausgang des isolierten Sperrwandlers, also parallel zu den Glättungskondensatoren C1 und C2 angeschlossen werden. Der Transformator des isolierten Sperrwandlers wird durch Schließen des aktiv gesteuerten Schalters aufmagnetisiert, wobei beim Öffnen des aktiv gesteuerten Schalters der Transformator über seine Sekundärwicklung L2 entmagnetisiert.The driver for LED with an isolated flyback converter comprising at least one actively controlled switch, the isolated flyback converter having a transformer whose primary winding is arranged in series with the actively controlled switch. This is used to operate at least one LED, wherein on the secondary side of the isolated flyback converter, an active rectifier is arranged, wherein the active rectifier is formed by a controllable switch M1. The controllable switch M1 is controlled depending on the secondary voltage at the transformer (L2) by means of a Totem Pole switching stage (Q1, Q2). The LED can be connected to the output of the isolated flyback converter, ie parallel to the smoothing capacitors C1 and C2. The transformer of the isolated flyback converter is magnetized by closing the actively controlled switch, wherein when opening the actively controlled switch, the transformer is demagnetized via its secondary winding L2.

1 zeigt eine erste Ausführungsform des erfindungsgemäßen Betriebsgeräts (nur die Sekundärseite). Die Sekundärspannung an dem Transformator wird durch eine zusätzliche Sekundärwicklung L1 an dem Transformator erfasst. Mittels eines Transistors Q3, der gegen den positiven Ausgang der Sekundärwicklung L2 des Transformators geschaltet ist, wird das Steuersignal durch die zusätzliche Sekundärwicklung L1 an die Totem Pole Schaltstufe (Q1, Q2) geführt und der der steuerbare Schalter angesteuert. 1 shows a first embodiment of the operating device according to the invention (only the secondary side). The secondary voltage on the transformer is detected by an additional secondary winding L1 on the transformer. By means of a transistor Q3, which is connected against the positive output of the secondary winding L2 of the transformer, the control signal is passed through the additional secondary winding L1 to the Totem Pole switching stage (Q1, Q2) and which controls the controllable switch.

2 zeigt eine zweite Ausführungsform des erfindungsgemäßen Betriebsgeräts (nur die Sekundärseite). Die Sekundärspannung an dem Transformator wird durch einen Spannungsteiler (R11, R21) an der Sekundärwicklung an dem Transformator erfasst und mittels eines Operationsverstärkers (U1) ausgewertet, wobei abhängig von dieser Auswertung der steuerbare Schalter mittels der Totem Pole Schaltstufe (Q1, Q2) angesteuert wird. 2 shows a second embodiment of the operating device according to the invention (only the secondary side). The secondary voltage on the transformer is detected by a voltage divider (R11, R21) on the secondary winding on the transformer and evaluated by means of an operational amplifier (U1), depending on this evaluation, the controllable switch by the Totem Pole switching stage (Q1, Q2) is controlled ,

Claims (3)

Betriebsgerät für LED mit einem isolierten Sperrwandler aufweisend zumindest einen aktiv gesteuerten Schalter, wobei der isolierte Sperrwandler einen Transformator aufweist, dessen Primärwicklung in Serie zu dem aktiv gesteuerten Schalter angeordnet ist, zum Betreiben mindestens einer LED, wobei auf der Sekundärseite des isolierten Sperrwandlers ein aktiver Gleichrichter angeordnet ist, wobei der aktive Gleichrichter durch einen steuerbaren Schalter gebildet wird, dadurch gekennzeichnet, dass der steuerbare Schalter abhängig von der Sekundärspannung an dem Transformator mittels einer Totem Pole Schaltstufe angesteuert wird.Operating device for LED with an isolated flyback converter comprising at least one actively controlled switch, wherein the isolated flyback converter comprises a transformer whose primary winding is arranged in series with the actively controlled switch, for operating at least one LED, wherein on the secondary side of the isolated flyback converter, an active rectifier is arranged, wherein the active rectifier is formed by a controllable switch, characterized in that the controllable switch is controlled depending on the secondary voltage to the transformer by means of a Totem Pole switching stage. Betriebsgerät nach Anspruch 1, wobei die Sekundärspannung an dem Transformator durch eine zusätzliche Sekundärwicklung an dem Transformator erfasst wird.Operating device according to claim 1, wherein the secondary voltage is detected at the transformer by an additional secondary winding to the transformer. Betriebsgerät nach Anspruch 1, wobei die Sekundärspannung an dem Transformator durch einen Spannungsteiler an der Sekundärwicklung an dem Transformator erfasst wird und mittels eines Operationsverstärkers ausgewertet wird, wobei abhängig von dieser Auswertung der steuerbare Schalter mittels der Totem Pole Schaltstufe angesteuert wird.Operating device according to claim 1, wherein the secondary voltage is detected at the transformer by a voltage divider on the secondary winding to the transformer and is evaluated by means of an operational amplifier, depending on this evaluation, the controllable switch is controlled by the Totem Pole switching stage.
DE102014215632.7A 2013-08-12 2014-08-07 Control circuit for a control gear for bulbs Withdrawn DE102014215632A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM263/2013U AT14080U1 (en) 2013-08-12 2013-08-12 Control circuit for a control gear for bulbs
ATGM263/2013 2013-08-12

Publications (1)

Publication Number Publication Date
DE102014215632A1 true DE102014215632A1 (en) 2015-02-12

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DE102014215632.7A Withdrawn DE102014215632A1 (en) 2013-08-12 2014-08-07 Control circuit for a control gear for bulbs

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DE (1) DE102014215632A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2087989T4 (en) * 1991-08-30 1997-01-16 Alcatel Bell Sdt Sa ALTERNATING CURRENT DETECTOR AND POWER SUPPLY CIRCUIT.
DE59402749D1 (en) * 1994-01-31 1997-06-19 Siemens Ag Circuit arrangement with a field effect transistor
JP2845188B2 (en) * 1995-12-11 1999-01-13 サンケン電気株式会社 DC-DC converter
SE514850C2 (en) * 1998-05-07 2001-04-30 Ericsson Telefon Ab L M Synchronous rectifier in flyback topology
SE517220C2 (en) * 1998-12-21 2002-05-07 Ericsson Telefon Ab L M Synchronous flyback converter
WO2005034325A1 (en) * 2003-09-30 2005-04-14 Sanken Electric Co., Ltd. Switching power source device
DE102010031247A1 (en) * 2010-03-19 2011-09-22 Tridonic Ag Low voltage power supply for a LED lighting system

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AT14080U1 (en) 2015-04-15

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R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: H05B0037020000

Ipc: H05B0045300000

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee