EP1615476A2 - Convertisseur en pont complet pour alimenter une lampe à décharge, avec moyens pour décharger les interrupteurs dudit pont complet - Google Patents

Convertisseur en pont complet pour alimenter une lampe à décharge, avec moyens pour décharger les interrupteurs dudit pont complet Download PDF

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Publication number
EP1615476A2
EP1615476A2 EP05012059A EP05012059A EP1615476A2 EP 1615476 A2 EP1615476 A2 EP 1615476A2 EP 05012059 A EP05012059 A EP 05012059A EP 05012059 A EP05012059 A EP 05012059A EP 1615476 A2 EP1615476 A2 EP 1615476A2
Authority
EP
European Patent Office
Prior art keywords
node
circuit arrangement
arrangement according
capacitor
full
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
Application number
EP05012059A
Other languages
German (de)
English (en)
Other versions
EP1615476B1 (fr
EP1615476A3 (fr
Inventor
Felix Dr. Franck
Wolfram Dr. Sowa
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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Publication date
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Publication of EP1615476A2 publication Critical patent/EP1615476A2/fr
Publication of EP1615476A3 publication Critical patent/EP1615476A3/fr
Application granted granted Critical
Publication of EP1615476B1 publication Critical patent/EP1615476B1/fr
Not-in-force 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2856—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit conditions

Definitions

  • the invention relates to circuit arrangements for the operation of lamps.
  • the term lamp in the present patent application encompasses devices which are suitable for generating from electromagnetic energy electromagnetic radiation with a wavelength between 50 nanometers and 50,000 nanometers.
  • these are incandescent lamps, gas discharge lamps or light-emitting diodes.
  • the circuit arrangement is in particular a full bridge whose switches are relieved of switching. Furthermore, the circuit arrangement is also suitable to keep mains harmonics low.
  • This object is achieved by a circuit arrangement with a full bridge, which is constructed from a first and a second full bridge load, wherein between the full bridge branches a first throttle is connected and in series with one of the full bridge branches, a second throttle is connected.
  • the operating frequency is understood to mean the frequency of a clock with which the switches of a full-bridge load open and close.
  • the potentials of the full bridge branches oscillate relative to one another such that ZVS adjusts. This at an operating frequency, which can be adjusted by the first and the second throttle and does not depend on the inductive component of the load resistance.
  • circuit arrangement according to the invention is that a charge pump is added, which causes a reduction of the line current harmonic.
  • phase shift of the control of the two full bridge branches as described in US 4,864,479 is also applied to a circuit arrangement according to the invention. This can be adjusted using the phase shift a desired lamp current.
  • the invention enables a single-stage circuit arrangement for operating a lamp with low circuit complexity, in which the energy balance of the charge pump is adjustable via the above-mentioned phase shift of the lamp current and the operating frequency, all switches are relieved switch.
  • switches are indicated by the letter S, diodes by the letter D, capacitors by the letter C, nodes by the letter N, and chokes by the letter L each followed by a number. Also, the same reference numerals are used throughout for the same and equivalent elements of the various embodiments.
  • FIG. 1 shows a circuit arrangement according to the invention. In the following the topology of this circuit is described.
  • a first full bridge load comprises the series connection of a first and a third electronic switch S1, S3, which are connected in a first center N1.
  • a second full bridge load comprises the series connection of a second and a fourth electronic switch S2, S4, which are connected in a second center N2.
  • the first and second full bridge loads are each connected to one terminal to a positive node N3 and to the other terminal to a negative node N4. Not shown is a power source that feeds a DC voltage between the positive node N3 and the negative node N4. Between the positive node N3 and the negative node N4, a storage capacitor C6 is connected.
  • the first and the second center N1, N2 are connected via a first throttle L1.
  • at least one second throttle L2 is connected in series with the second and fourth electronic switches S2, S4 in the second full bridge load.
  • the second inductor L2 is connected between the third node N3 and the second electronic switch S2.
  • a fourth throttle L4 is connected between the fourth node N4 and the fourth electronic switch S4.
  • the second and the fourth throttle L2, L4 are magnetically coupled. This coupling symmetrizes the currents in the switches, resulting in reduced radio interference.
  • the load circuit is connected between the fifth node N5 and the first center N1. Lamps Lp can be connected to the load circuit.
  • the load circuit consists of a low pass consisting of the series connection of a third inductor L3 and a third capacitor C3.
  • a Lamp Lp is connected in parallel to the third capacitor C3.
  • the cutoff frequency of the low pass is preferably below the operating frequency of the full bridge. This achieves a sinusoidal lamp current.
  • the parallel connection of a fourth capacitor C4 and a first diode D1 is connected in the exemplary embodiment between the second and third nodes N2, N3, and the parallel connection of a fifth capacitor C5 and a second diode is connected between the second and fourth nodes N2, N4 D2 switched.
  • each electronic switch S1, S2, S3, S4, a diode and a capacitor is connected in each case.
  • These are parasitic elements, which brings an electronic switch in its practical implementation.
  • the diodes are not inherent in bipolar transistors and IGBTs, but are often integrated as freewheeling diodes in the switches. Widely used is the use of MOSFETs as electronic switches, in which always a so-called body diode is inherently installed.
  • the parasitic capacitors of the electronic switches together with the chokes L1, L2 and L4 form a resonant circuit, which causes a switch relief.
  • the electronic switches S1, S3 and S2, S4 are opened and closed alternately at one clock, the frequency of the clock being the same in each full bridge load.
  • Drive devices that cause the opening and closing of the electronic switches S1, S3, S2, S4 are not shown in FIG.
  • the current through the lamp is adjustable.
  • FIG. 2 shows an exemplary embodiment of a circuit arrangement according to the invention with a charge pump for reducing the line current harmonics.
  • a pump capacitor C7 is additionally connected between the second node N2 and a sixth node N6, and a pump diode D7 is connected between the sixth node N6 and the third node N3.
  • the energy is no longer as in the previous embodiment to the positive node N3 and the negative node N4, but to the sixth node N6 and the negative node N4.
  • the power comes from a mains voltage source UN, which is connected to mains voltage terminals J1, J2.
  • J1 and J2 are connected to the AC input of a bridge rectifier consisting of diodes D3, D4, D5, D6.
  • the positive output of the bridge rectifier is connected to the sixth node N6.
  • the negative output of the bridge rectifier is connected to the fourth node N4.
  • the diodes D3 and D4 are drawn filled, while D5 and D6 are not filled. This implies that D3 and D4 may be slow diodes that switch at the line frequency, while D5 and D6 must be fast diodes operating at the full bridge operating frequency.
  • D1, D2 and C4, C5 are dashed lines, since they can be omitted.
  • a charge pump is realized in a circuit according to the invention, as described in the document US 6,208,085 (Lehnert).
  • a mains voltage source UN is again connected to mains voltage terminals J1, J2.
  • a full-bridge rectifier D8, D9, D10, D11 Connected to the mains voltage terminals J1, J2 is the AC input of a full-bridge rectifier D8, D9, D10, D11.
  • the positive output of the full-bridge rectifier D8, D9, D10, D11 is connected to the positive node N3, and the negative output of the full-bridge rectifier D8, D9, D10, D11 is connected to the negative node N4.
  • At least one mains voltage connection J1, J2 is connected to the second node N2 via a capacitor C8, C9.
  • both capacitors are executed. This is necessary for large power lamps to provide enough pump power.
  • the capacitors C4 and C5 are dashed lines to indicate that only these can be omitted while D1 and D2 are populated.
  • FIG. 4 differs from FIG. 2 in the parallel connection of a capacitor C10 to the pumping diode D7.
  • the switch relief of the electronic switches S1, S2, S3 and S4 even further improved.
  • FIG. 5 differs with respect to FIG. 3 in that an eleventh capacitor C11 is connected between the first mains voltage connection J1 and the third node N3 and / or that a twelfth capacitor C12 is connected between the second mains voltage connection J2 and the fourth node N4.
  • an eleventh capacitor C11 is connected between the first mains voltage connection J1 and the third node N3 and / or that a twelfth capacitor C12 is connected between the second mains voltage connection J2 and the fourth node N4.
  • C11 and C12 are populated. This is necessary if a symmetrization of the circuit is desired.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Keying Circuit Devices (AREA)
  • Rectifiers (AREA)
EP05012059A 2004-07-09 2005-06-03 Convertisseur en pont complet pour alimenter une lampe à décharge, avec moyens pour décharger les interrupteurs dudit pont complet Not-in-force EP1615476B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004033377A DE102004033377A1 (de) 2004-07-09 2004-07-09 Schaltungsanordnung mit einer schalterentlasteten Vollbrücke zum Betrieb von Lampen

Publications (3)

Publication Number Publication Date
EP1615476A2 true EP1615476A2 (fr) 2006-01-11
EP1615476A3 EP1615476A3 (fr) 2007-02-14
EP1615476B1 EP1615476B1 (fr) 2008-05-07

Family

ID=35056917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05012059A Not-in-force EP1615476B1 (fr) 2004-07-09 2005-06-03 Convertisseur en pont complet pour alimenter une lampe à décharge, avec moyens pour décharger les interrupteurs dudit pont complet

Country Status (5)

Country Link
US (1) US7394207B2 (fr)
EP (1) EP1615476B1 (fr)
AT (1) ATE394908T1 (fr)
CA (1) CA2511706A1 (fr)
DE (2) DE102004033377A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102884374B (zh) * 2009-11-02 2015-05-27 香港城市大学 用于驱动dc供电的照明设备的装置或电路
US8649187B2 (en) 2010-09-21 2014-02-11 Curtiss-Wright Electro-Mechanical Corporation Two-terminal M2LC subsystem and M2LC system including same
CN102097967B (zh) * 2010-12-10 2013-01-16 清华大学 一种级联式多电平变流器
CN102958222B (zh) * 2011-08-19 2016-09-28 国网安徽省电力公司阜阳供电公司 供电控制系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864479A (en) * 1988-03-07 1989-09-05 General Electric Company Full-bridge lossless switching converter
EP0666638A2 (fr) * 1994-02-08 1995-08-09 HEINZINGER ELECTRONIC GmbH Etage de commutation push-pull
US6208085B1 (en) * 1999-05-20 2001-03-27 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Circuit for power-factor correction
US6259213B1 (en) * 1999-02-11 2001-07-10 Ratent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Circuit arrangement for operating at least one low-pressure discharge lamp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU747501B2 (en) * 1998-09-18 2002-05-16 Knobel Ag Lichttechnische Komponenten Circuit for operating gas discharge lamps
US6271633B1 (en) * 1999-11-01 2001-08-07 Philips Electronics North America Corporation High power factor electronic ballast with fully differential circuit topology
US6380694B1 (en) * 2000-09-22 2002-04-30 Matsushita Electric Works R & D Laboratory Variable structure circuit topology for HID lamp electronic ballasts
JP3945681B2 (ja) * 2001-03-07 2007-07-18 株式会社日立製作所 照明用点灯装置
US6551233B2 (en) * 2001-08-08 2003-04-22 R. B. Carr Engineering, Onc. Magnetic stimulator power and control circuit
IL147944A (en) * 2002-01-31 2006-10-31 Univ Ben Gurion A low-frequency converter fed by a high-frequency alternating current source
DE10205516A1 (de) * 2002-02-08 2003-08-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zur Leistungsfaktor-Korrektur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864479A (en) * 1988-03-07 1989-09-05 General Electric Company Full-bridge lossless switching converter
EP0666638A2 (fr) * 1994-02-08 1995-08-09 HEINZINGER ELECTRONIC GmbH Etage de commutation push-pull
US6259213B1 (en) * 1999-02-11 2001-07-10 Ratent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Circuit arrangement for operating at least one low-pressure discharge lamp
US6208085B1 (en) * 1999-05-20 2001-03-27 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Circuit for power-factor correction

Also Published As

Publication number Publication date
DE502005003947D1 (de) 2008-06-19
CA2511706A1 (fr) 2006-01-09
US20060006819A1 (en) 2006-01-12
DE102004033377A1 (de) 2006-02-16
EP1615476B1 (fr) 2008-05-07
US7394207B2 (en) 2008-07-01
EP1615476A3 (fr) 2007-02-14
ATE394908T1 (de) 2008-05-15

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