EP0050132B1 - Appareil d'alimentation - Google Patents

Appareil d'alimentation Download PDF

Info

Publication number
EP0050132B1
EP0050132B1 EP81900980A EP81900980A EP0050132B1 EP 0050132 B1 EP0050132 B1 EP 0050132B1 EP 81900980 A EP81900980 A EP 81900980A EP 81900980 A EP81900980 A EP 81900980A EP 0050132 B1 EP0050132 B1 EP 0050132B1
Authority
EP
European Patent Office
Prior art keywords
capacitor
main transistor
charge
protective
supply apparatus
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
Application number
EP81900980A
Other languages
German (de)
English (en)
Other versions
EP0050132A1 (fr
Inventor
Max Kerscher
Armin KRÖNING
Anh-Dung Nguyen
Reinhold Priller
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE3014472A external-priority patent/DE3014472C2/de
Priority claimed from DE19803029656 external-priority patent/DE3029656C2/de
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT81900980T priority Critical patent/ATE8954T1/de
Publication of EP0050132A1 publication Critical patent/EP0050132A1/fr
Application granted granted Critical
Publication of EP0050132B1 publication Critical patent/EP0050132B1/fr
Expired legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a power supply device according to the preamble of claim 1.
  • a source of further losses is associated with the generation of the low operating voltages for the control electronics in power supply devices of the type mentioned at the outset, unless complex transformation circuits are used.
  • the invention has for its object to reduce the power losses in a power supply device of the type mentioned with little circuitry.
  • the protective capacitor thus forms, together with the charging capacitor, a capacitive voltage divider which, on the one hand, reduces the switch-off losses by delaying the voltage rise at the main transistor and with the aid of which it is possible to generate a low operating voltage on the charging capacitor with virtually no loss.
  • the voltage supply for the electronics requires a higher positive and a smaller negative voltage.
  • the charging capacitor of the auxiliary voltage source consists of two partial capacitors. It is not practical to adjust the relation of the voltages by appropriate selection of the capacitances, because then a very large capacitor would be needed to generate the lower voltage, but on the other hand the energy requirement is lower at the lower voltage level than at the higher one.
  • the relation of the voltages at the two partial capacitors is therefore preferably set by appropriate dimensioning of the protective choke.
  • the protective choke must be dimensioned approximately three times as large as would be necessary with a view to reducing the steepness of the discharge current of the protective capacitor; With capacitors of approximately the same capacitance, a voltage ratio of approximately 1: 3 can then be set.
  • the charging capacitor receives energy from the DC voltage source. If the charging capacitor consists of two partial capacitors, one of them receives additional energy if the protective capacitor is charged when the main transistor is blocked.
  • the protective capacitor is preferably dimensioned in such a way that this additional energy is at least sufficient to control the main transistor.
  • the other partial capacitor is then charged with part of the energy of the protective capacitor through the protective inductor, which in turn charges the two partial capacitors in series connection, with the main transistor turned on.
  • the energy supplied to the partial capacitors via the protective capacitor does not need to be supplied by the auxiliary voltage source, which can be dimensioned correspondingly smaller.
  • the storage capacitor C18 feeds an inverter W and is connected on the one hand via a blocking inductor L1, the charging diode D27 and the charging inductor L4, and on the other hand via a measuring resistor R33 to a main rectifier G1 in a two-way circuit, which is fed by an AC voltage network N and essentially has one at its terminals provides unsmoothed voltage.
  • the main transistor V6 via which the charging inductor L4 can be switched to the main rectifier and thus can be charged, is used to regulate the voltage at the storage capacitor C18.
  • the signal at the measuring resistor R33 lying between the main transistor V6 and the storage capacitor C18 on the one hand and the main rectifier G1 on the other hand is fed via a delay element (resistor R27 and capacitor C14) to the input 7 of a control part with a controller X, which controls the main transistor V6 as a secondary switch.
  • a swinging diode D42 is also connected in anti-parallel to the main transistor and the measuring resistor R33;
  • the "invisible" capacitances (the choke, the diodes, etc.) can discharge past the main transistor V6 via these.
  • the inductor L4 charges and the capacitor C14 decelerates until its voltage reaches the setpoint value which is fed to the controller X of the control part and takes the form of an unsmoothed rectified alternating voltage: the current drawn from the mains therefore has an average a sinusoidal course.
  • the controller switches off the main transistor V6:
  • the inductor L4 then outputs its energy via the charging diode D27 to the storage capacitor C18, the voltage of which in the meantime had dropped somewhat as a result of the load from the inverter W.
  • the signal at the measuring resistor R33 and - with a delay - the signal at the capacitor C14 decrease.
  • the delay element R27 / C14 is dimensioned such that the voltage at C14 reaches the lower switchover point of the regulator when the current through the charging inductor L4 has become zero, i.e. it has been completely magnetized back:
  • V6 is then switched on, this transistor has to take over neither a residual current of the charging choke L4 nor a reverse current of the diode D27, so that practically no switch-on losses occur.
  • the protective capacitor C17 serves to limit the voltage rise at the blocked main transistor V6 and is connected in parallel to the switching path of this transistor and the measuring resistor R33 via the decoupling diode D9 and a capacitor C8:
  • the protective capacitor C17 charges via L4, D9 and a charging capacitor C8 and thereby delays the rise in the blocking voltage on the switching path of the main transistor V6, so that only a small power loss occurs.
  • the DC operating voltages for the control section are supplied in the start-up phase by an additional rectifier G2 which is connected to the AC network N via capacitors C6, C7 and which feeds the partial capacitors C8 and C9 in series connection; the connection point of these two capacitors lies at the negative terminal of the main rectifier G1, so that they supply a positive or a negative operating voltage.
  • the partial capacitor C8 is also connected to the main rectifier G1 via the decoupling diode D9, the protective capacitor C17 and the charging inductor L4 and thus receives an additional charge from the main rectifier when the main transistor V6 is blocked and C17 is charging; C17 is dimensioned with 300 pF so large that this additional charge of C8 is sufficient for the subsequent control of the main transistor. Additional rectifiers and capacitors C6, C7 are therefore only dimensioned for the remaining power requirements of the controller and monitoring section.
  • the other partial capacitor C9 is connected via the protective inductor L9 and the protective capacitor C17 in parallel to the switching path of the main transistor V6 and the measuring resistor R33;
  • the discharge current of the protective capacitor C17 flows through this discharge circuit and thus via C9 when the main transistor V6 is turned on, which in this case charges the partial capacitor C9.
  • both capacitors have approximately the same capacitance (approx. 50 ⁇ f).
  • the different voltages are set during operation by appropriate dimensioning of the protective choke L9: The latter is dimensioned about three times as large as would be necessary to sufficiently delay the rise in the discharge current from C17 to V6.
  • the recharging of the partial capacitor C9 when the protective capacitor C17 is discharged via the main transistor V6 is namely considerably less than the charge of the partial capacitor C8 when the protective capacitor C17 is charged.
  • Such a coordination of the time constants is assumed that a complete charge or discharge of C17 is guaranteed in the associated switching cycles of V6.
  • the energy stored in the protective choke L9 is finally discharged via the diode D9 and the two partial capacitors C8 and C9 in series connection. This discharge process is irrelevant for the voltage relation across the partial capacitors, since it affects both capacitors to the same extent.
  • the energy of the protective choke L9 is thus used to supply the electronics and does not burden the main transistor V6.

Landscapes

  • Rectifiers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Dans un appareil d'alimentation d'une charge a courant continu comportant, dans le circuit de chargement d'une inductance de chargement (L4), un transistor principal (V6) fonctionnant comme commutateur, un condensateur de protection (C17) en parallele avec le transistor principal sert a la reduction des pertes provoquees par la commutation etant retardee par une inductance de protection. Pour la remagnetisation de cette inductance de protection, on utilise une diode a regime libre dont le courant de retour court mais eleve accroit les pertes provoquees par la commutation de l'etat bloque a l'etat passant. Afin d'eviter cet inconvenient, l'inductance de protection est disposee a l'exterieur du circuit de charge et son energie est utilisee additionnellement pour le chargement de condensateurs de chargement (C8, C9) d'un redresseur supplementaire (G2).

Claims (7)

1. Appareil d'alimentation pour une charge en courant continu, comportant un condensateur qui est monté en parallèle sur celui-ci et que est raccordé à une source de tension continue (G1) par l'intermédiaire d'une diode de charge (D27) et d'une bobine d'arrêt de charge (L4), un transistor principal (V6) par l'intermédiaire duquel la bobine d'arrêt de charge (L4) peut être reliée à la source de tension continue (G1), un circuit de commande pour commander le transistor principal (V6) dans le mode de commutation, un condensateur de protection (C17) en parallèle sur le transistor principal (V6) pour réduire ses pertes de passage de l'état passant à l'état bloqué, une bobine d'arrêt de protection (L9) dans le circuit de décharge du condensateur de protection (C17) pour limiter la perte du courant de décharge, et une source de tension auxiliaire avec un condensateur de charge pour délivrer la tension continue de service pour le circuit de commande, caractérisé par le fait que la bobine d'arrêt de protection (19) est montée en parallèle sur le circuit de commutation du transistor principal (V6) par l'intermédiaire du condensateur de protection (C17) et sur le condensateur de charge (C8) par l'intermédiaire d'une diode de découplage (D9) conductrice lorsque le transistor principal (V6) est bloqué.
2. Appareil d'alimentation suivant la revendication 1, caractérisé par le fait que le condensateur de protection (C17) est dimensionné de façon suffisamment importante pour que l'énergie qui y est chargée pendant la phase de blocage du transistor principal (V6) suffise au moins pour la mise dans l'état passant du transistor principal (V6).
3. Appareil d'alimentation suivant la revendication 2, caractérisé par le fait que le condensateur de charge est raccordé à une source de tension alternative, par l'intermédiaire d'un redresseur supplémentaire (G2).
4. Appareil d'alimentation suivant la revendication 3, caractérisé par le fait que le redresseur supplémentaire (G2) est relié, par l'intermédiaire de condensateurs (C6, C7) à la source de tension alternative qui est dimensionnée uniquement pour la consommantion d'énergie restante du circuit de commande.
5. Appareil d'alimentation suivant la revendication 3 ou 4, caractérisé par le fait que le régulateur (X) dans le circuit de commande est bloqué tant que la tension aux bornes du condensateur de charge n'a pas encore atteint la valeur minimale suffisante pour un fonctionnement en commutation du transistor principal (V6).
6. Appareil d'alimentation suivant l'une des revendications 1 à 5, caractérisé par le fait que le condensateur de charge est constitué par deux condensateurs partiels (C8, C9) montés en série, dont le point de jonction est relié à la borne négative (4) de la source de tension continue (G1 ).
7. Appareil d'alimentation suivant la revendication 6, caractérisé par le fait que la bobine d'arrêt de protection (L9) est dimensionnée de façon suffisamment importante pour que la charge du condensateur partiel (C8), se trouvant entre la diode de découplage (D9) et la borne négative de la source de tension continue (G1), soit plus importante que celle de l'autre condensateur partiel (C9) pour chaque cycle de commutation du transistor principal (V6).
EP81900980A 1980-04-15 1981-04-14 Appareil d'alimentation Expired EP0050132B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81900980T ATE8954T1 (de) 1980-04-15 1981-04-14 Stromversorgungsgeraet.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3014472A DE3014472C2 (de) 1980-04-15 1980-04-15 Stromversorgungsgerät
DE3014472 1980-04-15
DE19803029656 DE3029656C2 (de) 1980-08-05 1980-08-05 Stromversorgungsgerät
DE3029656 1980-08-05

Publications (2)

Publication Number Publication Date
EP0050132A1 EP0050132A1 (fr) 1982-04-28
EP0050132B1 true EP0050132B1 (fr) 1984-08-08

Family

ID=25784971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81900980A Expired EP0050132B1 (fr) 1980-04-15 1981-04-14 Appareil d'alimentation

Country Status (4)

Country Link
EP (1) EP0050132B1 (fr)
FI (1) FI72015C (fr)
IT (1) IT1137329B (fr)
WO (1) WO1981003103A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH670340A5 (fr) * 1985-08-19 1989-05-31 Hasler Ag Ascom

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969652A (en) * 1974-01-04 1976-07-13 General Electric Company Electronic ballast for gaseous discharge lamps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ETZ, Bd. 100, 1979, H. 13, S. 664-670 *

Also Published As

Publication number Publication date
WO1981003103A1 (fr) 1981-10-29
IT1137329B (it) 1986-09-10
FI811180L (fi) 1981-10-16
IT8121037A0 (it) 1981-04-10
FI72015C (fi) 1987-03-09
EP0050132A1 (fr) 1982-04-28
FI72015B (fi) 1986-11-28

Similar Documents

Publication Publication Date Title
DE3319739C2 (de) Vorschaltgerät für Gasentladungslampen
DE69623394T2 (de) Schaltkreis und Verfahren zum Steuerung eines Einschaltstrombegrenzers in ein Leistungswandler mit Leistungsfaktorkorrektur
DE3785534T2 (de) Parallel resonanter auf-abwaertskonverter.
DE2827693A1 (de) Wechselrichter und dessen verwendung in einem batterieladegeraet
EP0299339A1 (fr) Dispositif de commutation à faible perte de commutateurs à semi-conducteur d'un onduleur à trois points
DE4010435C2 (fr)
DE10153738B4 (de) Gleichrichterschaltung und Verfahren zu deren Steuerung
DE2312127A1 (de) Elektrische drehzahlregelungseinrichtung fuer einen wechselstrommotor
EP0542817B1 (fr) Circuit de commande par coupe fonctionnant sur secteur
DE1463662C3 (de) Elektrisches Kleingerat
DE69007442T2 (de) Netzteil vom Typ AC-DC-Wandler.
DE69410775T2 (de) Elektronisches Vorschaltgerät für Entladungslampen mit einem Resonanzkreis zur Begrenzung des Formfaktors und zur Verbesserung des Leistungsfaktors
EP0203571B1 (fr) Onduleur statique avec surélévation de courant en cas de court-circuit
EP0057910B1 (fr) Circuit pour l'alimentation régulée d'un utilisateur
EP0050753A1 (fr) Disposition de circuit pour alimenter un utilisateur en courant alternatif avec une tension alternative et plus particulièrement avec une tension sinusoidale
DE1513209A1 (de) Einrichtung zur Erzeugung einer sinusfoermigen Wechselspannung konstanter Amplitude mittels eines statischen Resonanzkreis-Wechselrichters
EP0050132B1 (fr) Appareil d'alimentation
DE3720600A1 (de) Stabilisierschaltung fuer schalt-spannungsversorgungsschaltung
EP0324904A1 (fr) Alimentation pour générer une tension continue régulée
EP0165898A2 (fr) Dispositif pour remédier à disparition de la tension alternative de réseau
DE3149447A1 (de) Regelungsschaltung zum konstanthalten der betriebsspannung eines elektrischen verbrauchers
EP0120258B1 (fr) Circuit économiseur d'énergie
DE69313256T2 (de) Ballastschaltung
DE2816361A1 (de) Verfahren zum betrieb eines leistungskondensators zur blindstromkompensation
EP0324902B1 (fr) Alimentation stabilisée pour fournir une tension régulée

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811106

AK Designated contracting states

Designated state(s): AT CH FR GB NL SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH FR GB LI NL SE

REF Corresponds to:

Ref document number: 8954

Country of ref document: AT

Date of ref document: 19840815

Kind code of ref document: T

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19890331

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890403

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890421

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890428

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890430

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890724

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900414

Ref country code: AT

Effective date: 19900414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900430

Ref country code: CH

Effective date: 19900430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901101

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19901228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 81900980.4

Effective date: 19910115