DE4032664A1 - Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm starting - Google Patents
Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm startingInfo
- Publication number
- DE4032664A1 DE4032664A1 DE19904032664 DE4032664A DE4032664A1 DE 4032664 A1 DE4032664 A1 DE 4032664A1 DE 19904032664 DE19904032664 DE 19904032664 DE 4032664 A DE4032664 A DE 4032664A DE 4032664 A1 DE4032664 A1 DE 4032664A1
- Authority
- DE
- Germany
- Prior art keywords
- winding
- circuit arrangement
- arrangement according
- lamp
- parallel
- 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- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 239000007858 starting material Substances 0.000 claims abstract description 4
- 238000009499 grossing Methods 0.000 claims abstract description 3
- 230000009849 deactivation Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- 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
- H05B41/2825—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 by means of a bridge converter in the final stage
- H05B41/2827—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 by means of a bridge converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
Abstract
Description
Für den Betrieb von Niederdruckentladungslampen sind entsprechende Schaltungsanordnungen bekannt, wie Induktiv mit Drossel und Starter als auch elektronische Vorschaltgeräte. Die nachstehend beschriebene Schaltungsanordnung beinhaltet ergänzende Neuheiten zu den bekannten elektronischen Vorschaltgeräten.For the operation of low pressure discharge lamps corresponding circuit arrangements are known, like inductive with choke and starter as well electronic ballasts. The circuit arrangement described below includes additional innovations to the known ones electronic ballasts.
Wie in Fig. 1 dargestellt, wird eine Netzspannung von 220/240 V an den Eingangsklemmen 1 und 2 ge schaltet. Im Strompfad von 1 ist eine Sicherung 4 eingesetzt.As shown in Fig. 1, a mains voltage of 220/240 V at the input terminals 1 and 2 is switched ge. A fuse 4 is inserted in the current path of 1 .
Die Netzfilterdrossel, bestehend aus ET-Steckkern blechen mit den Wicklungen 6 und im lnnensteg ein seitigem Luftspalt, hat eine große Filterwirkung gegen Ausstrahlungen von hochfrequenten Netzver schmutzungen.The line filter choke, consisting of ET plug-in core with the windings 6 and an air gap on the inside web, has a great filter effect against the emission of high-frequency line pollution.
Mit einer in Reihe geschalteten stromkompensierten Ferritdrossel 7 und den Y-Kondensatoren 8 ist das Netzteil komplett.The power supply is complete with a series-compensated current-compensated ferrite choke 7 and the Y capacitors 8 .
Die Netzwechselspannung wird über den Gleichrichter 9 gleichgerichtet und mit Kondensator 10 geglättet.The AC line voltage is rectified via rectifier 9 and smoothed with capacitor 10 .
Der Startvorgang erfolgt, indem sich über den positiv fließenden Strom über Widerstand 12, Diode 13, Wick lung 21, Drossel 24 NTC 25, Drossel 26 über die Lampen wendel 48 die Kondensatoren 27 über die Ladung eine Spannung aufbauen. Das Gegenpotential stellen die Teiler-Kondensatoren 28 und 46 sicher.The starting process takes place by the capacitors 27 building up a voltage across the charge via the positively flowing current via resistor 12 , diode 13 , winding 21 , choke 24 NTC 25 , choke 26 via lamps 48 . The divider capacitors 28 and 46 ensure the counter potential.
Gleichzeitig wird der Kondensator 15 aufgeladen bis zur Durchbruchspannung von Diac 14, der die Basis des Transistors 23 ansteuert und den Transistor 47 durchsteuert. At the same time, the capacitor 15 is charged up to the breakdown voltage of the diac 14 , which drives the base of the transistor 23 and turns on the transistor 47 .
Die Ladung aus Kondensator 27 fließt wieder rückwärts über Lampenwendel 48, Drosseln 26, Drossel 24 NTC 25 über Wicklung 22, Transistor 47 nach Minus. Da die Wicklungen 17, 19, 21 und 22 auf einen Ringkern bzw. 2 Ringkerne, wobei die Wicklungen 21 und 22 über beide Ringkerne gehen und Wicklung 17 den einen und Wicklung 19 dem anderen Ringkern zugeordnet ist, wird in Wicklung 17 eine durch den Stromfluß in Wicklung 17 eine positive Spannung und Wicklung 19 eine negative Spannung induziert.The charge from capacitor 27 flows backwards again via lamp filament 48 , chokes 26 , choke 24 NTC 25 via winding 22 , transistor 47 to the minus. Since the windings 17 , 19 , 21 and 22 on a ring core or 2 ring cores, the windings 21 and 22 going over both ring cores and winding 17 being assigned to one and winding 19 to the other ring core, winding 17 becomes one due to the current flow a positive voltage is induced in winding 17 and a negative voltage is induced in winding 19 .
Die Wicklung 17 schaltet mit der positiven Basisspannung den Transistor 16 ein. Die Wicklung 19 schaltet mit der negativen Basisspannung den Transistor 47 aus. Durch den Stromfluß durch die Wicklung 21 werden die Wicklungen 17 und 19 in ihren Potentialen umgepolt und somit ist der Gegentaktgenerator in Betrieb.The winding 17 switches on the transistor 16 with the positive base voltage. The winding 19 turns off the transistor 47 with the negative base voltage. The potentials of the windings 17 and 19 are reversed by the current flow through the winding 21 and the push-pull generator is thus in operation.
Als Zündhilfe für die Lampen ist der Kondensator 50 und Widerstand 51 eingesetzt.The capacitor 50 and resistor 51 are used as ignition aids for the lamps.
Die Dioden 33 und 34 sind als Spannungsbegrenzung einge seit.The diodes 33 and 34 are a voltage limitation since.
Die Neuheit der Schaltungsanordnung ist in der Netzteil filterdrossel 6, der Drossel 24 mit parallel geschalte tem NTC 25, den Kondensatoren 27 und Lampenanschlüssen 30, 31 und 32 dargestellt.The novelty of the circuit arrangement is shown in the power pack filter choke 6 , the choke 24 with NTC 25 connected in parallel, the capacitors 27 and lamp connections 30 , 31 and 32 .
Die Netzteilfilterdrossel ist bereits eingehend beschrie ben.The power supply filter choke has already been described in detail ben.
Die Drossel 24 mit prallel geschaltetem NTC (Heißleiter) = veränderbarer Widerstand, der bei zunehmender Temperatur durch den hindurchfließenden Strom den Widerstand herab setzt. The choke 24 with a parallel NTC (thermistor) = variable resistance, which reduces the resistance as the temperature increases due to the current flowing through it.
Diese Schaltungsanordnung Drossel 24 mit NTC 25 parallel hat drei Aufgaben:This circuit arrangement choke 24 with NTC 25 in parallel has three tasks:
- a) Beim Einschalten die Lampen mit reduzierter Leistung zu zünden (= Warmstart).a) When switching on the lamps with reduced power to ignite (= warm start).
- b) Bei deaktiver Lampe (= das Gas in der Lampe ist nicht mehr vorhanden, oder so weit abgebaut, daß die Lampe nicht mehr zündet) löst die Sicherung 5 aus, die extern angeordnet, auswechselbar ist.b) When the lamp is deactivated (= the gas in the lamp is no longer present or has been reduced to such an extent that the lamp no longer ignites) the fuse 5 , which is arranged externally, can be replaced.
-
c) 3-poliger Anschluss 30, 31 und 32 bei Umrüstung
beim konventionellen Vorschaltgerät auf EVG
Bei Funktion a) ist eim Einschalten der NTC 25 kalt =
hochohmig, somit fließt der Hautanteil über die 24.
Durch die zusätzliche Impedanz der Drossel 24 wird
die Leistung an den Lampen verringert.
Die Lampen starten mit verringerter Leistung; aber bei deaktiver Lampe wird durch den Zündvorgang mehr Strom gezogen, dabei geht die Sicherung 5 defekt, weil diese im Gleichstrompfad hinter der Glättung und Zündschaltung angeordnet ist.
Die Sicherung 5 hat somit nur ca. 1/4 des Stromwertes der Netzteilsicherung z. B. 2·58 W Lampen Netzteilsicherung 4 = 1 AT, Deaktivitätssicherung 5 = 0,25 AT.c) 3-pin connection 30 , 31 and 32 when converting the conventional ballast to electronic ballast With function a), when the NTC 25 is switched on, it is cold = high-resistance, so the skin portion flows over the 24th The additional impedance of the choke 24 reduces the power on the lamps.
The lamps start with reduced power; but when the lamp is deactivated, more current is drawn through the ignition process, the fuse 5 is defective because it is arranged in the direct current path behind the smoothing and ignition circuit.
The fuse 5 has only about 1/4 of the current value of the power supply fuse z. B. 2 · 58 W lamps Power supply fuse 4 = 1 AT, deactivation fuse 5 = 0.25 AT.
Der Anschlußbereich C mit den drei Anschlußpunkten 30, 31 und 32 gilt für den Schaltungsanordnungsbereich Umrüsten von Leuchten mit konventionellen Vorschaltgeräten auf energiesparende elektronische Vorschaltgeräte.The connection area C with the three connection points 30 , 31 and 32 applies to the circuit arrangement area converting luminaires with conventional ballasts to energy-saving electronic ballasts.
Die Kondensatoren 27 sind extern im Startergehäuse ange ordnet, weil somit eine Umverdrahtung der Lampe entfällt und nur die an den Anschlußpunkten 30, 31 und 32 zu schalten braucht. The capacitors 27 are arranged externally in the starter housing, because rewiring of the lamp is thus omitted and only needs to be switched at the connection points 30 , 31 and 32 .
Sind die Kondensatoren intern dem Gerät zugeordnet, müssen aus dem Gerät die sieben Lampenanschluß punkte 30, 31, 32, 35, 36, 37 und 38 herausgeführt werden.If the capacitors are assigned internally to the device, the seven lamp connection points 30 , 31 , 32 , 35 , 36 , 37 and 38 must be led out of the device.
Wie in Fig. 2 dargestellt, ist der Wicklung 24 eine Sekundärwicklung 41 zugeordnet. Da bei steigender Deaktivität der Lampen auch die Spannung über die Drosseln 24 und 26 ansteigt, wird in Wicklung 41 eine höhere Spannung übertragen. Wenn diese Spannung einen beliebig anzupassenden Schwellwert übersteigt, schaltet der Thyristor 40 durch und läßt einen Strom durch die Wicklung 39 fließen.As shown in FIG. 2, the winding 24 is assigned a secondary winding 41 . Since the voltage across the chokes 24 and 26 also rises when the lamps become inactive, a higher voltage is transmitted in winding 41 . If this voltage exceeds a threshold value which can be adjusted as desired, the thyristor 40 switches on and allows a current to flow through the winding 39 .
Die Anordnung der Wicklungen 17, 19, 21, 22 und 39 auf den Ringkernen 52 und 53 sind in Fig. 3 dargestellt.The arrangement of the windings 17 , 19 , 21 , 22 and 39 on the toroidal cores 52 and 53 are shown in FIG. 3.
Durch den Stromfluß durch Wicklung 39 geht der Ring kern 52 in Sättigung und schaltet den Transistor 47 nicht ein. Somit ist die Schaltung außer Betrieb.Due to the current flow through winding 39 , the ring core 52 goes into saturation and does not turn on the transistor 47 . The circuit is therefore out of operation.
Ein neuer Startvorgang kann durch den Diac 14 auch nicht eingeleitet werden, weil durch den Stromfluß über Thyristor 40 und Wicklung 39 die Durchbruchspannung nicht erreicht wird.A new starting process can not be initiated by the diac 14 , because the breakdown voltage is not reached by the current flow through thyristor 40 and winding 39 .
Der Vorlastwiderstand 43 bedämpft Einschaltspitzen. Der Gleichrichter 42 richtet die hochfrequente Spannung in eine positive und negative Gleichspannung, die mit dem Kondensator 44 geglättet wird. Der abgeschaltete Zustand wird über Netzunterbrechung wieder aufgehoben.The preload resistor 43 dampens switch-on peaks. The rectifier 42 directs the high-frequency voltage into a positive and negative DC voltage, which is smoothed with the capacitor 44 . The switched off state is canceled again by an interruption in the network.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904032664 DE4032664A1 (en) | 1990-10-15 | 1990-10-15 | Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm starting |
DE19904036550 DE4036550A1 (en) | 1990-10-15 | 1990-11-16 | Ballast circuitry for low pressure discharge lamps - uses rectifier and push=pull electronic circuit to ignite lamps on each half-cycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904032664 DE4032664A1 (en) | 1990-10-15 | 1990-10-15 | Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm starting |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4032664A1 true DE4032664A1 (en) | 1992-04-16 |
Family
ID=6416305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904032664 Withdrawn DE4032664A1 (en) | 1990-10-15 | 1990-10-15 | Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm starting |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4032664A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29504494U1 (en) * | 1995-03-16 | 1995-05-11 | Schuetz Peter Dipl Phys | Fluorescent lamp unit with a ballast |
WO1999019977A2 (en) * | 1997-10-10 | 1999-04-22 | Electro-Mag International, Inc. | Converter/inverter full bridge ballast circuit |
US6028399A (en) * | 1998-06-23 | 2000-02-22 | Electro-Mag International, Inc. | Ballast circuit with a capacitive and inductive feedback path |
US6069455A (en) * | 1998-04-15 | 2000-05-30 | Electro-Mag International, Inc. | Ballast having a selectively resonant circuit |
US6091288A (en) * | 1998-05-06 | 2000-07-18 | Electro-Mag International, Inc. | Inverter circuit with avalanche current prevention |
US6100648A (en) * | 1999-04-30 | 2000-08-08 | Electro-Mag International, Inc. | Ballast having a resonant feedback circuit for linear diode operation |
US6100645A (en) * | 1998-06-23 | 2000-08-08 | Electro-Mag International, Inc. | Ballast having a reactive feedback circuit |
US6107750A (en) * | 1998-09-03 | 2000-08-22 | Electro-Mag International, Inc. | Converter/inverter circuit having a single switching element |
US6127786A (en) * | 1998-10-16 | 2000-10-03 | Electro-Mag International, Inc. | Ballast having a lamp end of life circuit |
US6137233A (en) * | 1998-10-16 | 2000-10-24 | Electro-Mag International, Inc. | Ballast circuit with independent lamp control |
US6160358A (en) * | 1998-09-03 | 2000-12-12 | Electro-Mag International, Inc. | Ballast circuit with lamp current regulating circuit |
US6169375B1 (en) | 1998-10-16 | 2001-01-02 | Electro-Mag International, Inc. | Lamp adaptable ballast circuit |
US6181082B1 (en) | 1998-10-15 | 2001-01-30 | Electro-Mag International, Inc. | Ballast power control circuit |
US6181083B1 (en) | 1998-10-16 | 2001-01-30 | Electro-Mag, International, Inc. | Ballast circuit with controlled strike/restart |
US6188553B1 (en) | 1997-10-10 | 2001-02-13 | Electro-Mag International | Ground fault protection circuit |
US6222326B1 (en) | 1998-10-16 | 2001-04-24 | Electro-Mag International, Inc. | Ballast circuit with independent lamp control |
-
1990
- 1990-10-15 DE DE19904032664 patent/DE4032664A1/en not_active Withdrawn
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29504494U1 (en) * | 1995-03-16 | 1995-05-11 | Schuetz Peter Dipl Phys | Fluorescent lamp unit with a ballast |
WO1999019977A2 (en) * | 1997-10-10 | 1999-04-22 | Electro-Mag International, Inc. | Converter/inverter full bridge ballast circuit |
WO1999019977A3 (en) * | 1997-10-10 | 1999-06-17 | Electro Mag Int Inc | Converter/inverter full bridge ballast circuit |
US6020688A (en) * | 1997-10-10 | 2000-02-01 | Electro-Mag International, Inc. | Converter/inverter full bridge ballast circuit |
US6188553B1 (en) | 1997-10-10 | 2001-02-13 | Electro-Mag International | Ground fault protection circuit |
US6281638B1 (en) | 1997-10-10 | 2001-08-28 | Electro-Mag International, Inc. | Converter/inverter full bridge ballast circuit |
US6069455A (en) * | 1998-04-15 | 2000-05-30 | Electro-Mag International, Inc. | Ballast having a selectively resonant circuit |
US6236168B1 (en) | 1998-04-15 | 2001-05-22 | Electro-Mag International, Inc. | Ballast instant start circuit |
US6091288A (en) * | 1998-05-06 | 2000-07-18 | Electro-Mag International, Inc. | Inverter circuit with avalanche current prevention |
US6100645A (en) * | 1998-06-23 | 2000-08-08 | Electro-Mag International, Inc. | Ballast having a reactive feedback circuit |
US6028399A (en) * | 1998-06-23 | 2000-02-22 | Electro-Mag International, Inc. | Ballast circuit with a capacitive and inductive feedback path |
US6107750A (en) * | 1998-09-03 | 2000-08-22 | Electro-Mag International, Inc. | Converter/inverter circuit having a single switching element |
US6160358A (en) * | 1998-09-03 | 2000-12-12 | Electro-Mag International, Inc. | Ballast circuit with lamp current regulating circuit |
US6181082B1 (en) | 1998-10-15 | 2001-01-30 | Electro-Mag International, Inc. | Ballast power control circuit |
US6127786A (en) * | 1998-10-16 | 2000-10-03 | Electro-Mag International, Inc. | Ballast having a lamp end of life circuit |
US6181083B1 (en) | 1998-10-16 | 2001-01-30 | Electro-Mag, International, Inc. | Ballast circuit with controlled strike/restart |
US6169375B1 (en) | 1998-10-16 | 2001-01-02 | Electro-Mag International, Inc. | Lamp adaptable ballast circuit |
US6222326B1 (en) | 1998-10-16 | 2001-04-24 | Electro-Mag International, Inc. | Ballast circuit with independent lamp control |
US6137233A (en) * | 1998-10-16 | 2000-10-24 | Electro-Mag International, Inc. | Ballast circuit with independent lamp control |
US6100648A (en) * | 1999-04-30 | 2000-08-08 | Electro-Mag International, Inc. | Ballast having a resonant feedback circuit for linear diode operation |
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