EP0868110B1 - Flicker minimizing triggering method for at least one heating element of a linear heating apparatus - Google Patents
Flicker minimizing triggering method for at least one heating element of a linear heating apparatus Download PDFInfo
- Publication number
- EP0868110B1 EP0868110B1 EP98105522A EP98105522A EP0868110B1 EP 0868110 B1 EP0868110 B1 EP 0868110B1 EP 98105522 A EP98105522 A EP 98105522A EP 98105522 A EP98105522 A EP 98105522A EP 0868110 B1 EP0868110 B1 EP 0868110B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- period
- cycles
- power
- heating element
- polarity
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 17
- 238000010586 diagram Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0288—Applications for non specified applications
- H05B1/0291—Tubular elements
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/22—Helmets with hot air supply or ventilating means, e.g. electrically heated air current
- A45D20/30—Electric circuitry specially adapted for hair drying devices
Definitions
- the invention relates to a control method according to the Genus of the preamble of claim 1 and Claim 3.
- heating devices In known heating devices is one to one Heating resistor in series switch one sensitive influence on the temperature of the dispensed Warm air depending on an adjustable setpoint possible.
- the switch is used in a known manner controlled by a pulse packet controller.
- the ones from The heating power output is given by pulsed activation of the switch, generally one Triac, set in the voltage zero crossing. Since that Any ratio of pulse lengths to pulse pauses can be selected, the heat output in this way between zero and the maximum by the radiator feasible performance can be varied almost arbitrarily.
- the object of the present invention is therefore a to create a flicker-minimized control process that simple measures to maintain an undivided Radiator allowed, but optionally also in systems with divided heating strands can be used.
- the invention is based on several exemplary embodiments described in more detail.
- Figure 1 shows a basic block diagram of a Flicker-minimized power control using electronic switch for at least one heating element a network-operated heating device, wherein a Microcontroller by means of a zero crossing detection of the Network half-waves detects positive and negative half-waves and a circuit breaker with corresponding half-wave pulse packets controls. Via a power setting facility a certain performance can be specified.
- FIG. 2 A basic block diagram of a temperature-dependent (regulated) power control is shown in FIG. 2, whereby a temperature setpoint is specified, which by means of one thermally coupled to the heating element Temperature sensor detected actual temperature from Microcontroller is compared and the circuit breaker controlled with appropriate pulse packets.
- the power control method in a first exemplary embodiment is described in more detail using the example of seven pulse packets 2, 3, 11-14, 21.
- the power per period T is controlled via the size of pulse packets 1-21.
- the pulse packets 1-21 consist of a series of network half-waves A, B, C, the half-waves A, B of a first polarity in the same number being arranged in succession depending on the power at the beginning and end of the period T.
- the pulse packet 12-21 is assigned further half-waves C of a second polarity in succession as a function of a further power, the polarities of the network half-waves A, B, C being exchanged cyclically after each period T.
- the half-waves C can - as shown - in the middle as well be arranged at the beginning or end of the period T.
- the power control method is described in more detail in a second exemplary embodiment using the example of seven pulse packets 2 ', 3', 11'-14 ', 21'.
- the power per period T is controlled via the size of pulse packets 1'-21 '.
- the pulse packets 1'-21 ' consist of a series of network half-waves D, E, the half-waves D of a first polarity at the beginning of the period T and the half-waves E of a second polarity at the end of the period T being successively arranged in an equal number depending on the power ,
- the 21 pulse packets 1'-21 '(corresponding to 21 power levels) only the pulse packets 2', 3 ', 11'-14' and 21 'are shown.
- the corresponding 21 power levels could be controlled manually by means of a corresponding step switch or the like via a microcontroller, or a temperature control according to FIG. 2 could optionally be provided. After the selected period T, the 21 power levels (0% to 100%) are built up in 5% power steps, which is shown in the following table.
- the half-waves D, E go - each after further power - in corresponding full waves about.
- the resulting DC component is at its maximum permissible value incorporated in the standard EN 61000-3-2 and may be a maximum of approx. 1160 W with pure half-wave control be.
- the direct current load of Contacts u. reduced.
- FIG. 5 shows two successive periods T 1 and T 2 with two identical pulse packets 13 ', 13' (FIG. 4), a full wave jump X occurring here when the period changes, which is avoided in a further development of the invention according to FIG. 6 (as well as the duration of half-waves of the same polarity) that the polarities of the half-waves D ', E' are exchanged cyclically after each period T 1 (T 1 , T 2 etc.).
- a first heating element with the first and a second heating element with the second polarity of half-waves A, B, C or D, E be applied, or that a first heating element cyclically with the first period T 1 and a second heating element with the second period T 2 is applied.
- the power process is integrated in a temperature control, and a heat treatment device for head hair can be provided as the heating device.
Landscapes
- Control Of Resistance Heating (AREA)
- Central Heating Systems (AREA)
Description
Die Erfindung betrifft ein Ansteuerverfahren nach der
Gattung des Oberbegriffs des Anspruchs 1 bzw. des
Anspruchs 3.The invention relates to a control method according to the
Genus of the preamble of
Bei bekannten Wärmegeräten ist mittels eines zu einem Heizwiderstand in Reihe geschalteten Schalters eine feinfühlige Beeinflussung der Temperatur der abgegebenen Warmluft in Abhängigkeit eines einstellbaren Sollwertes möglich. Hierfür wird der Schalter in bekannter Weise mit einer Impulspaketsteuerung gesteuert. Die vom Heizwiderstand abgegebene Heizleistung wird dabei durch impulsartiges Ansteuern des Schalters, im allgemeinen eines Triac, im Spannungsnulldurchgang eingestellt. Da das Verhältnis von Impulslängen zu Impulspausen beliebig gewählt werden kann, kann die Heizleistung auf diese Weise zwischen Null und der maximal durch den Heizkörper umsetzbaren Leistung nahezu beliebig variiert werden.In known heating devices is one to one Heating resistor in series switch one sensitive influence on the temperature of the dispensed Warm air depending on an adjustable setpoint possible. For this purpose, the switch is used in a known manner controlled by a pulse packet controller. The ones from The heating power output is given by pulsed activation of the switch, generally one Triac, set in the voltage zero crossing. Since that Any ratio of pulse lengths to pulse pauses can be selected, the heat output in this way between zero and the maximum by the radiator feasible performance can be varied almost arbitrarily.
An die Spannungsrückwirkung auf Stromnetze werden in jüngster Zeit erhöhte Anforderungen gestellt (Flickernorm EN 61000-3-3). So sind zum Beispiel bei einer für Handhaartrockner oder Trockenhauben gebräuchlichen zu schaltenden Leistung von normalerweise > 1000 W vorschriftsbedingt so große Schaltintervalle erforderlich, daß die Zeitkonstanten schneller Heizkörpersysteme deutlich überschritten werden und somit zu starke Temperaturschwankungen der Ausblasluft auftreten. Die erlaubten Schaltzeiten werden erst bei für Handhaartrocknern und Trockenhauben deutlich zu geringeren Nennleistungen annehmbar klein. Eine Lösung nach der DE 40 23 250 A1 geht den Weg, den Heizkörper in zwei oder mehrere Teilwiderstände niedriger Leistung aufzuteilen, und ein schnell aufeinanderfolgendes, gleichzeitiges Schalten der Teilwiderstände in geeigneter Weise zu verhindern. Dieses Verfahren ist jedoch technisch/konstruktiv aufwendig und zur Nachrüstung in bestehenden Geräten nur beschränkt geeignet.At the voltage feedback on power grids are in Recently, increased demands have been made (flicker standard EN 61000-3-3). For example, one for Hand-held hair dryers or drying hoods are used too switching power of normally> 1000 W According to regulations, such large switching intervals are required that the time constants of fast radiator systems are clear exceeded and thus excessive temperature fluctuations the exhaust air occur. The allowed Switching times are only for hand hair dryers and Drying hoods significantly lower nominal power acceptably small. A solution according to DE 40 23 250 A1 goes the way, the radiator in two or more Split resistors of low power, and a rapid successive, simultaneous switching of the To prevent partial resistances in a suitable manner. This However, the process is technically / constructively complex only limited for retrofitting in existing devices suitable.
Aufgabe der vorliegenden Erfindung ist es daher, ein flickerminimiertes Ansteuerverfahren zu schaffen, das durch einfache Maßnahmen ein Beibehalten eines ungeteilten Heizkörpers erlaubt, wahlweise aber auch in Systemen mit aufgeteilten Heizsträngen einsetzbar ist.The object of the present invention is therefore a to create a flicker-minimized control process that simple measures to maintain an undivided Radiator allowed, but optionally also in systems with divided heating strands can be used.
Diese Aufgabe wird nach dem kennzeichnenden Teil des
Anspruchs 1 bzw. des Anspruchs 3 gelöst. Vorteilhafte
Weiterbildungen gehen aus den Unteransprüchen hervor.This task is performed according to the distinctive part of the
Die Erfindung wird anhand mehrerer Ausführungsbeispiele näher beschrieben.The invention is based on several exemplary embodiments described in more detail.
Es zeigt:
Figur 1- ein Blockschaltbild einer Leistungssteuerung;
Figur 2- ein Blockschaltbild einer Temperaturregelung;
Figur 3- verschiedene Pulspakete eines ersten Ausführungsbeispiels;
- Figur 4
- verschiedene Pulspakete eines zweiten Ausführungsbeispiels, und
- Figur 5-7
- jeweils zwei aufeinanderfolgende Pulspakete.
- Figure 1
- a block diagram of a power control;
- Figure 2
- a block diagram of a temperature control;
- Figure 3
- different pulse packets of a first embodiment;
- Figure 4
- different pulse packets of a second embodiment, and
- Figure 5-7
- two successive pulse packets each.
Figur 1 zeigt ein prinzipielles Blockschaltbild einer flickerminimierten Leistungssteuerung mittels elektronischer Schalter für mindestens ein Heizelement eines netzbetriebenen Wärmegeräts, wobei ein Mikrokontroller mittels einer Nulldurchgangserkennung der Netzhalbwellen positive und negative Halbwellen erkennt und einen Leistungsschalter mit entsprechenden Halbwellen-Pulspaketen ansteuert. Über eine Leistungseinstelleinrichtung kann eine bestimmte Leistung vorgegeben werden.Figure 1 shows a basic block diagram of a Flicker-minimized power control using electronic switch for at least one heating element a network-operated heating device, wherein a Microcontroller by means of a zero crossing detection of the Network half-waves detects positive and negative half-waves and a circuit breaker with corresponding half-wave pulse packets controls. Via a power setting facility a certain performance can be specified.
Ein prinzipielles Blockschaltbild einer temperaturabhängigen (geregelten) Leistungssteuerung zeigt Figur 2, wobei ein Temperatur-Sollwert vorgegeben wird, der mittels eines mit dem Heizelement thermisch gekoppelten Temperatursensors erfaßten Temperatur-Istwerts vom Mikrokontroller verglichen wird und den Leistungsschalter mit entsprechenden Pulspaketen ansteuert.A basic block diagram of a temperature-dependent (regulated) power control is shown in FIG. 2, whereby a temperature setpoint is specified, which by means of one thermally coupled to the heating element Temperature sensor detected actual temperature from Microcontroller is compared and the circuit breaker controlled with appropriate pulse packets.
In der Figur 3 wird am Beispiel von sieben Pulspaketen 2,
3, 11-14, 21 das Leistungssteuerverfahren in einem ersten
Ausführungsbeispiel näher beschrieben. Die Leistung pro
Periode T wird über die Größe von Pulspaketen 1-21
gesteuert. Die Pulspakete 1-21 bestehen aus einer Reihe von
Netzhalbwellen A, B, C, wobei die Halbwellen A, B einer
ersten Polarität in gleicher Anzahl in Abhängigkeit von der
Leistung anfangs- und endseitig der Periode T
aufeinanderfolgend angeordnet sind. Bei über 50 %
Leistungssteuerung werden dem Pulspaket 12-21 in
Abhängigkeit von einer weiteren Leistung weitere Halbwellen
C einer zweiten Polarität aufeinanderfolgend zugeordnet,
wobei die Polaritäten der Netzhalbwellen A, B, C nach jeder
Periode T zyklisch getauscht werden. Das zyklische Tauschen
hat den Vorteil, daß das Netz mit wenig Gleichstromanteilen
belastet wird. Aus Darstellungsgründen ist hier (wie auch
nach der Figur 4) eine Periodenzeit T entsprechend 20
Netzvollwellen (= 40 Netzhalbwellen) gewählt. In der Praxis
dürfte eine Periodenzeit T entsprechend 50 Netzvollwellen
(= 50 Hz = 1 s) gebräuchlich sein. Nach der gewählten
Periode T sind 21 Leistungsstufen von 0 % bis 100 %
möglich, was die folgende Tabelle zeigt.
Die Halbwellen C können - wie dargestellt - mittig wie auch anfangs - oder endseitig der Periode T angeordnet sein.The half-waves C can - as shown - in the middle as well be arranged at the beginning or end of the period T.
In der Figur 4 wird am Beispiel von sieben Pulspaketen 2',
3', 11'-14', 21' das Leistungssteuerverfahren in einem
zweiten Ausführungsbeispiel näher beschrieben. Die Leistung
pro Periode T wird über die Größe von Pulspaketen 1'-21'
gesteuert. Die Pulspakete 1'-21' bestehen aus einer Reihe
von Netzhalbwellen D, E, wobei die Halbwellen D einer
ersten Polarität anfangsseitig der Periode T und die
Halbwellen E einer zweiten Polarität endseitig der Periode
T in gleicher Anzahl in Abhängigkeit von der Leistung
aufeinanderfolgend angeordnet sind. Auch hier sind von den
21 Pulspaketen 1'-21' (entsprechend 21 Leistungsstufen) nur
die Pulspakete 2', 3', 11'-14' und 21' dargestellt. Die
entsprechenden 21 Leistungsstufen könnten manuell mittels
eines entsprechenden Stufenschalters oder dergleichen über
einen Mikrokontroller gesteuert oder wahlweise eine
Temperaturregelung nach der Figur 2 vorgesehen werden. Nach
der gewählten Periode T sind die 21 Leistungsstufen (0 %
bis 100 %) in 5 %-Leistungsschritten aufgebaut, was die
folgende Tabelle zeigt.
Ab einer Leistung von 55 % gehen die Halbwellen D, E - je nach weiterer Leistungshöhe - in entsprechende Vollwellen über. Der sich ergebende Gleichanteil ist in seinem maximal zulässigen Wert in der Norm EN 61000-3-2 eingearbeitet und darf maximal ca. 1160 W bei reiner Halbwellenansteuerung betragen. Zur weiteren Entlastung des Stromnetzes wird vorgeschlagen, die Polarität der Pulspakete in für die Flickernorm unschädlichen Zeitabständen, zyklisch zu tauschen, um im Mittelwert den Gleichanteil zu reduzieren (Figur 6). Desweiteren wird so die Gleichstrombelastung von Kontakten u. ä. reduziert. Wie Messungen zeigen, kann bei guter Regelgüte und schnellem ungeteiltem Heizkörpersystem mehr als 1000 W unter Einhaltung der Grenzwerte der Norm EN 6100-3-2 mit diesem Verfahren eine Kurzzeitleistung Pst (Power short time/Meßzeit = 10 Minuten) auf Werte weit unter den Grenzwert von 1 gesenkt werden.From an output of 55%, the half-waves D, E go - each after further power - in corresponding full waves about. The resulting DC component is at its maximum permissible value incorporated in the standard EN 61000-3-2 and may be a maximum of approx. 1160 W with pure half-wave control be. To further relieve the power grid suggested the polarity of the pulse packets in for the Flickernorm harmless intervals, cyclically too swap in order to reduce the average component (Figure 6). Furthermore, the direct current load of Contacts u. reduced. As measurements show, at good control quality and fast undivided radiator system more than 1000 W in compliance with the limit values of the EN standard 6100-3-2 with this method a short-term power Pst (Power short time / measuring time = 10 minutes) to values far can be reduced below the limit of 1.
In der Figur 5 sind zwei aufeinanderfolgende Perioden T1 und T2 mit zwei gleichen Pulspaketen 13', 13' (Figur 4) dargestellt, wobei hier beim Periodenwechsel ein Vollwellensprung X entsteht, der in einer Weiterbildung der Erfindung nach der Figur 6 dadurch vermieden wird (wie auch die Dauer von Halbwellen gleicher Polarität), daß die Polaritäten der Halbwellen D', E' nach jeder Periode T1 zyklisch getauscht werden (T1, T2 usw.).FIG. 5 shows two successive periods T 1 and T 2 with two identical pulse packets 13 ', 13' (FIG. 4), a full wave jump X occurring here when the period changes, which is avoided in a further development of the invention according to FIG. 6 (as well as the duration of half-waves of the same polarity) that the polarities of the half-waves D ', E' are exchanged cyclically after each period T 1 (T 1 , T 2 etc.).
In der Figur 7 sind zwei Pulspakete 13, 13 (Figur 3)
dargestellt, wobei die Polaritäten der Halbwellen A, B, C
der Periode T1 zyklisch getauscht werden (T2 = A', B',
C'/T1 = A, B, C), wodurch der Gleichanteil minimiert wird.FIG. 7 shows two
Für ein Ansteuern über ein Heizelement hinaus wird vorgeschlagen, daß ein erstes Heizelement mit der ersten und ein zweites Heizelement mit der zweiten Polarität von Halbwellen A, B, C bzw. D, E beaufschlagt wird, oder daß zyklisch ein erstes Heizelement mit der ersten Periode T1 und ein zweites Heizelement mit der zweiten Periode T2 beaufschlagt wird. In einer Weiterbildung ist das Leistungsverfahren in einer Temperaturregelung integriert, wobei als Wärmegerät ein Wärmebehandlungsgerät für Kopfhaar vorgesehen werden kann.For actuation beyond a heating element, it is proposed that a first heating element with the first and a second heating element with the second polarity of half-waves A, B, C or D, E be applied, or that a first heating element cyclically with the first period T 1 and a second heating element with the second period T 2 is applied. In one development, the power process is integrated in a temperature control, and a heat treatment device for head hair can be provided as the heating device.
Claims (8)
- Minimum-flicker power control method using electronic switches for at least one heating element of a mains-operated heating device, characterizedin that the power per period (T) is controlled by means of the size of sets of pulses (1-21),in that the sets of pulses (1-21) comprise a series of mains half-cycles (A, B, C), the same number of half-cycles (A, B) of a first polarity being arranged in succession at the beginning and end of the period (T), as a function of the power,in that the set of pulses (12-21), over 50% power control and as a function of a further power, is assigned further half-cycles (C) of a second polarity in succession, andin that the polarities of the mains half-cycles (A, B, C) are reversed cyclically after each period (T).
- Method according to Claim 1, characterized in that the half-cycles (C) of the second polarity are arranged essentially in the middle of the period (T).
- Minimum-flicker power control method using electronic switches for at least one heating element of a mains-operated heating device, characterizedin that the power per period (T) is controlled by means of the size of sets of pulses (1'-21'), andin that the sets of pulses (1'-21') comprise a series of mains half-cycles (D, E), the same number of half-cycles (D) of a first polarity being arranged in succession at the beginning of the period (T) and of half-cycles (E) of a second polarity being arranged in succession at the end of the period (T), as a function of the power.
- Method according to Claim 3, characterized in that the polarities of the half-cycles (D, E) are reversed cyclically after each period (T).
- Method according to Claim 1 or Claim 3, characterized in that the first polarity of half-cycles (A, B, C) is applied to a first heating element, and the second polarity of half-cycles (D, E) is applied to a second heating element.
- Method according to Claim 1 or Claim 3, characterized in that the first period (T1) is applied cyclically to a first heating element, and the second period (T2) is applied cyclically to a second heating element.
- Method according to Claim 1 or Claim 3, characterized in that the power control method is integrated in a temperature control system.
- Method according to Claim 1 or Claim 3, characterized in that a heat-treatment device for head hair is envisaged as the heating device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19731877 | 1997-03-26 | ||
| DE19731877 | 1997-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0868110A1 EP0868110A1 (en) | 1998-09-30 |
| EP0868110B1 true EP0868110B1 (en) | 2004-08-04 |
Family
ID=7836779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98105522A Expired - Lifetime EP0868110B1 (en) | 1997-03-26 | 1998-03-26 | Flicker minimizing triggering method for at least one heating element of a linear heating apparatus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0868110B1 (en) |
| DE (2) | DE19813421A1 (en) |
| ES (1) | ES2226021T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010010316A1 (en) | 2010-03-04 | 2010-09-02 | SEVERIN ELEKTROGERÄTE GmbH | Method for power control of heating power of mains operated household appliances, involves controlling power per cycle at different levels, where quick or imprecise control takes place in lower level |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4024526B2 (en) | 2001-08-29 | 2007-12-19 | 富士フイルム株式会社 | Fused octacyclic aromatic compound and organic EL device and organic EL display using the same |
| HK1048722A2 (en) * | 2002-08-28 | 2003-03-28 | 陈永坚 | Hair dryer with improved heating power control and circuits therefor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3240099A1 (en) * | 1982-10-29 | 1984-05-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for controlling or regulating using the multi-cycle control principle and a device for carrying out the method |
| DE3903978A1 (en) * | 1989-02-10 | 1990-08-16 | Imp Werke Gmbh | Infrared hob having at least two infrared tubes |
-
1998
- 1998-03-26 DE DE19813421A patent/DE19813421A1/en not_active Withdrawn
- 1998-03-26 DE DE59811729T patent/DE59811729D1/en not_active Expired - Lifetime
- 1998-03-26 ES ES98105522T patent/ES2226021T3/en not_active Expired - Lifetime
- 1998-03-26 EP EP98105522A patent/EP0868110B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010010316A1 (en) | 2010-03-04 | 2010-09-02 | SEVERIN ELEKTROGERÄTE GmbH | Method for power control of heating power of mains operated household appliances, involves controlling power per cycle at different levels, where quick or imprecise control takes place in lower level |
| WO2011107065A1 (en) | 2010-03-04 | 2011-09-09 | SEVERIN ELEKTROGERÄTE GmbH | Method for controlling the heat output in mains-operated domestic appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0868110A1 (en) | 1998-09-30 |
| ES2226021T3 (en) | 2005-03-16 |
| DE19813421A1 (en) | 1998-10-01 |
| DE59811729D1 (en) | 2004-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60124760T2 (en) | HYBRID ELECTRICAL SWITCHING DEVICE | |
| CH650198A5 (en) | DEVICE FOR HEATING SHEET OR SHAPED MATERIALS. | |
| DE69400948T2 (en) | SWITCHGEAR WITH TWO RELAY SWITCHES FOR A BALLAST UNIT FOR A DISCHARGE LAMP | |
| DE69502294T2 (en) | METHOD AND CIRCUIT ARRANGEMENT FOR POWER CONTROLLING A LOAD BY A PHASE CONTROL SYSTEM | |
| EP0868110B1 (en) | Flicker minimizing triggering method for at least one heating element of a linear heating apparatus | |
| DE3207501C2 (en) | Control device for a dryer | |
| DE69027247T2 (en) | Power control device for heating elements | |
| DE69215107T2 (en) | CONTROL SYSTEM FOR THROTTLE WITH CHANGEABLE INDUCTIVITY | |
| DE1613936A1 (en) | Three-phase motor with a device for contactless control of the motor | |
| EP1150419B1 (en) | Method for operation of power controllers and circuit for carrying out of the method | |
| EP0054654B1 (en) | Electro-medical apparatus | |
| DE955982C (en) | Device for regulating the protective gas flow during protective gas welding | |
| DE2807100C2 (en) | Control device with AC-powered measuring device | |
| DE19738890A1 (en) | Process for low-switching power control of electrical loads and electrical heater | |
| DE3123976A1 (en) | Control device for massaging devices | |
| DE2346528A1 (en) | Variable time base for switching - on-off switching of power circuit controlled by input transducer with pre-selected on-off periods to a given sequence | |
| DE3141282C2 (en) | Control device for DC braking of an AC motor | |
| DE2516389C2 (en) | SAFETY CIRCUIT FOR THE CONTROL UNIT OF A BUBBLE MASSAGE BATH | |
| DE3630540C1 (en) | Device for controlling reactive volt-amperes (VAr) | |
| DE612483C (en) | Arrangement for automatic switching on and off of electrical circuits, delayed by a mercury switch tube with a narrow flow opening | |
| DE29508869U1 (en) | Device for electric welding | |
| DE896518C (en) | Arrangement for regulating the voltage of a power generator, especially in systems on vehicles | |
| DE2122972A1 (en) | Circulation pump with electrically and / or electronically variable and controllable power, in particular for central heating systems with forced circulation | |
| AT238826B (en) | Circuit arrangement for remote control of welding machines | |
| DE2713419A1 (en) | DEVICE FOR REGULATING THE CONICAL SCANNING FREQUENCY FOR CONICAL SCANNING RADAR SYSTEMS |
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: 19980404 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE DK ES FI FR GB IT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| AKX | Designation fees paid |
Free format text: DE DK ES FI FR GB IT SE |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE DK ES FI FR GB IT SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040804 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 59811729 Country of ref document: DE Date of ref document: 20040909 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040908 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041104 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041104 |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2226021 Country of ref document: ES Kind code of ref document: T3 |
|
| 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 |
Effective date: 20050506 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: WELLA GMBH Effective date: 20120301 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD Owner name: WELLA GMBH, DE Effective date: 20120906 Ref country code: FR Ref legal event code: CA Effective date: 20120906 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20160311 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20170731 Year of fee payment: 20 Ref country code: FR Payment date: 20170807 Year of fee payment: 20 Ref country code: ES Payment date: 20170727 Year of fee payment: 20 Ref country code: DE Payment date: 20170727 Year of fee payment: 20 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170326 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59811729 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20180325 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20180325 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20200723 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20180327 |