DE29911341U1 - Power supply device for operating light-emitting diodes - Google Patents

Power supply device for operating light-emitting diodes

Info

Publication number
DE29911341U1
DE29911341U1 DE29911341U DE29911341U DE29911341U1 DE 29911341 U1 DE29911341 U1 DE 29911341U1 DE 29911341 U DE29911341 U DE 29911341U DE 29911341 U DE29911341 U DE 29911341U DE 29911341 U1 DE29911341 U1 DE 29911341U1
Authority
DE
Germany
Prior art keywords
power supply
supply circuit
circuit according
inverter
current source
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.)
Expired - Lifetime
Application number
DE29911341U
Other languages
German (de)
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.)
Vossloh Schwabe Elektronik GmbH
Original Assignee
Vossloh Schwabe GmbH
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 Vossloh Schwabe GmbH filed Critical Vossloh Schwabe GmbH
Priority to DE29911341U priority Critical patent/DE29911341U1/en
Publication of DE29911341U1 publication Critical patent/DE29911341U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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]
    • H05B45/40—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
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
    • 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]
    • H05B45/39—Circuits containing inverter bridges
    • 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
    • H05B45/395—Linear regulators
    • 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
    • H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
    • 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]

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (14)

1. Stromversorgungsschaltung zum Betrieb von Leucht­ dioden (9) an einem Versorgungsnetz,
mit einem HF-Wechselrichter (4) zur Umsetzung der Netzspannung auf eine zum Betrieb der Leuchtdioden (9) geeignete Spannung,
mit einem HF-Transformator (5), der an den HF-Wech­ selrichter (4) angeschlossen ist und dessen Ausgang zur Speisung wenigstens einer Strom­ quelle (8) dient, an die wenigstens eine Leuchtdiode (9) anschließbar ist.1. power supply circuit for operating light-emitting diodes ( 9 ) on a supply network,
with an HF inverter ( 4 ) for converting the mains voltage to a voltage suitable for operating the light-emitting diodes ( 9 ),
with an RF transformer ( 5 ) which is connected to the RF inverter ( 4 ) and whose output is used to supply at least one current source ( 8 ) to which at least one light-emitting diode ( 9 ) can be connected. 2. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass dem HF-Wechselrichter (4) ein EMV-Filter (2) vorgeschaltet ist.2. Power supply circuit according to claim 1, characterized in that the RF inverter ( 4 ) is connected upstream of an EMC filter ( 2 ). 3. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass zwischen dem Ausgang des Transformators (5) und der Stromquelle (8) ein HF-Gleich­ richter (6) angeordnet ist.3. Power supply circuit according to claim 1, characterized in that an HF rectifier ( 6 ) is arranged between the output of the transformer ( 5 ) and the current source ( 8 ). 4. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass der HF-Transformator (5) gal­ vanisch getrennte Primär- und Sekundärwicklungen aufweist und an seiner Sekundärwicklung eine Kleinspannung abgibt.4. Power supply circuit according to claim 1, characterized in that the RF transformer ( 5 ) has galvanically separated primary and secondary windings and emits a low voltage on its secondary winding. 5. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass der Wechselrichter (4) eine selbstschwingende Schaltung aufweist. 5. Power supply circuit according to claim 1, characterized in that the inverter ( 4 ) has a self-oscillating circuit. 6. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass der Wechselrichter (4) mit einer Ansteuerschaltung für eine Festfrequenz verbunden ist.6. Power supply circuit according to claim 1, characterized in that the inverter ( 4 ) is connected to a control circuit for a fixed frequency. 7. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass der Wechselrichter (4) ein Halbbrückendurchflusswandler ist.7. Power supply circuit according to claim 1, characterized in that the inverter ( 4 ) is a half-bridge flow converter. 8. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass an den Ausgang des HF-Gleich­ richters (6) eine HF-Glättungsschaltung (7) angeschlossen ist.8. Power supply circuit according to claim 1, characterized in that an RF smoothing circuit ( 7 ) is connected to the output of the RF rectifier ( 6 ). 9. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass der HF-Transformator (5) meh­ rere Stromquellen (8) speist.9. Power supply circuit according to claim 1, characterized in that the HF transformer ( 5 ) feeds several current sources ( 8 ). 10. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass die wenigstens eine Stromquel­ le (8) als Konstantstromquelle ausgebildet ist.10. Power supply circuit according to claim 1, characterized in that the at least one current source le ( 8 ) is designed as a constant current source. 11. Stromversorgungsschaltung nach Anspruch 1, da­ durch gekennzeichnet, dass der wenigstens einen Strom­ quelle (8) eine Überwachungsschaltung (10) zur Begrenzung der Verlustleistung zugeordnet ist.11. Power supply circuit according to claim 1, characterized in that the at least one current source ( 8 ) is associated with a monitoring circuit ( 10 ) for limiting the power loss. 12. Stromversorgungsschaltung nach Anspruch 10, da­ durch gekennzeichnet, dass die Überwachungsschaltung (10) als Temperaturüberwachungsschaltung oder als Spannungs­ überwachungsschaltung ausgebildet ist. 12. Power supply circuit according to claim 10, characterized in that the monitoring circuit ( 10 ) is designed as a temperature monitoring circuit or as a voltage monitoring circuit. 13. Stromversorgungsschaltung nach Anspruch 9, da­ durch gekennzeichnet, dass die Konstantstromquellen ein gemeinsames Gegenpotential aufweisen.13. Power supply circuit according to claim 9, there characterized by that the constant current sources a have common counter potential. 14. Vorschaltgerät für LED mit einer Stromversor­ gungsschaltung nach einem der vorhergehenden Ansprüche.14. Ballast for LED with a power supply supply circuit according to one of the preceding claims.
DE29911341U 1999-07-02 1999-07-02 Power supply device for operating light-emitting diodes Expired - Lifetime DE29911341U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29911341U DE29911341U1 (en) 1999-07-02 1999-07-02 Power supply device for operating light-emitting diodes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29911341U DE29911341U1 (en) 1999-07-02 1999-07-02 Power supply device for operating light-emitting diodes

Publications (1)

Publication Number Publication Date
DE29911341U1 true DE29911341U1 (en) 1999-10-14

Family

ID=8075457

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29911341U Expired - Lifetime DE29911341U1 (en) 1999-07-02 1999-07-02 Power supply device for operating light-emitting diodes

Country Status (1)

Country Link
DE (1) DE29911341U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201280B4 (en) * 2001-01-16 2008-04-03 Visteon Global Technologies, Inc., Dearborn Display unit with LED backlight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201280B4 (en) * 2001-01-16 2008-04-03 Visteon Global Technologies, Inc., Dearborn Display unit with LED backlight

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19991118

R081 Change of applicant/patentee

Owner name: VOSSLOH-SCHWABE ELEKTRONIK GMBH, DE

Free format text: FORMER OWNER: VOSSLOH SCHWABE GMBH, 73660 URBACH, DE

Effective date: 20000816

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20020910

R157 Lapse of ip right after 6 years

Effective date: 20060201