WO2018104302A1 - Procédé d'identification du type d'une tension d'alimentation fournie à un dispositif de commande de moyens d'éclairage - Google Patents

Procédé d'identification du type d'une tension d'alimentation fournie à un dispositif de commande de moyens d'éclairage Download PDF

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Publication number
WO2018104302A1
WO2018104302A1 PCT/EP2017/081527 EP2017081527W WO2018104302A1 WO 2018104302 A1 WO2018104302 A1 WO 2018104302A1 EP 2017081527 W EP2017081527 W EP 2017081527W WO 2018104302 A1 WO2018104302 A1 WO 2018104302A1
Authority
WO
WIPO (PCT)
Prior art keywords
supply voltage
voltage
vmains
operating device
rectified
Prior art date
Application number
PCT/EP2017/081527
Other languages
German (de)
English (en)
Inventor
Markus Sandholzer
Juan Morís GÓMEZ
Blazej Szyler
Original Assignee
Tridonic Gmbh & Co Kg
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 DE102016224349.7A external-priority patent/DE102016224349A1/de
Application filed by Tridonic Gmbh & Co Kg filed Critical Tridonic Gmbh & Co Kg
Priority to EP17825758.0A priority Critical patent/EP3552296B1/fr
Publication of WO2018104302A1 publication Critical patent/WO2018104302A1/fr

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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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • H02J9/065—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads for lighting purposes

Definitions

  • the present invention relates to a method by means of which the type of supply voltage supplied to an operating device for lighting means can be identified or with whose aid it can be determined whether there is sufficient input to an operating device Supply voltage applied. Furthermore, the present invention relates to a corresponding circuit arrangement for identifying the type of a supplied supply voltage and a control device therefor.
  • the present invention is therefore based on the one hand the task of further improving the known from the prior art solutions for identifying the type of supply voltage provided so that even between the different supply voltage types can be reliably distinguished in the situations described above.
  • the object is achieved by a method for identifying the type of supply voltage supplied to a control device for luminous means according to claim 3.
  • Advantageous developments of the invention are the subject of the dependent claims.
  • the object is achieved by a circuit arrangement for identifying the type of a supply device for a lighting device supplied supply voltage according to claim 18.
  • a third reference voltage is used.
  • This third reference voltage lies between the first and second reference voltage and is chosen so that it clearly allows a distinction between a supply AC voltage and a quasi-DC supply voltage, even with low loads on the output side.
  • a method for identifying the type of supply voltage supplied to a lighting device, wherein the supply voltage supplied to the operating device is rectified and subsequently compared to both a first, low reference voltage and a second, high reference voltage, depending from the comparison results a type of available
  • Reference voltage is compared, which lies between the first and the second reference voltage.
  • circuit arrangement for identifying the type of an operating device for lighting supply voltage supplied, wherein the circuit arrangement comprises means for rectifying the supply voltage supplied to the operating device and to the subsequent
  • the circuit arrangement is designed to additionally compare the rectified supply voltage with a third reference voltage, which lies between the first and the second reference voltage. It has been shown that by introducing this additional third
  • Reference voltage opens the possibility to quickly and reliably distinguish at any time between the three different types of supply voltage.
  • the reliability in recognizing an emergency state can thereby be significantly increased, which leads to a significant overall improvement in the reliability of a lighting system.
  • the third reference voltage is variable and is in particular provided to select the height of this third reference voltage depending on an operation of the light source, in particular depending on a dimming level of the light source. This takes into account the above-mentioned effect that, in the case of a low output-side load, the course of the rectified supply AC voltage approaches the course of the quasi-DC voltage.
  • the third reference voltage can be optimally selected in order to clearly distinguish between these two voltage types.
  • the comparisons of the rectified supply voltage with the three reference voltages can be carried out in different ways. In this case, both a simultaneous comparison can be made and it can be provided that the comparisons are carried out in chronological succession. In particular, in the second variant, the number of identifying the type of
  • Reference voltages and the peak value of the supplied supply voltage or the rectified supply voltage is detected.
  • Supply voltage for the circuit arrangement or the operating device is detected only if the peak value meets a predetermined condition, in particular exceeds a predetermined reference value.
  • Supply voltage is exceeded or not is usually carried out on the basis of a time measurement. That is, an exceeding of the reference voltage is detected only if this is done for a certain predetermined period of, for example, 6 ms. Depending on which, however
  • Frequency has the supply voltage, this means that the exceeding of a reference voltage for supply voltages of different frequencies is determined at different maximum voltages.
  • the reference value has to be reliably detected, the reference value accordingly has to be suitably adapted, in particular lowered, which, however, in turn leads to early detection of supply voltages with low frequencies exceeding the reference voltages and thus the presence of a sufficient supply voltage. This can lead to problems during later operation, which is why ideally the reference voltages should be dependent on the frequency of the input voltage. Furthermore, tolerances of the internal clock (so-called clock tolerances) of the operating device or the
  • Supply voltage is present or not, is introduced, this being the already mentioned peak value of the supply voltage or the
  • rectified supply voltage is. Only if, on the one hand, by means of a comparison of the rectified supply voltage with the different reference voltages, the presence of a supply voltage is detected and, at the same time, the predetermined value of a predetermined condition is satisfied, the presence of a sufficient supply voltage is detected, so that it is avoided, if suitable reference voltages are used all frequencies are valid, at low frequencies premature activation of the operating device takes place. Ideally, it is provided here that the reference value, which is compared with the peak value, is dependent on the previously determined type of available standing supply voltage.
  • this above-described approach of additionally taking into account the peak value of the supply voltage can also be used independently of whether the rectified supply voltage is compared with three different reference values according to the solution described above Not. Even if it is determined only by comparison with a single reference voltage whether a supply voltage is present on the input side or not, the additional consideration of the peak value of the previously described influence of the frequency dependence can be reliably excluded.
  • Peak value meets a predetermined condition, in particular exceeds a further predetermined reference value.
  • the invention proposes a circuit arrangement for identifying the presence of a sufficient input-side supply voltage to an operating device for lighting means, wherein the circuit arrangement comprises means for rectifying the supply voltage supplied to the operating device and for subsequent comparison with at least one reference voltage, and further wherein a valuation unit is provided, which the concern of a sufficient input-side supply voltage determines if the
  • the circuit arrangement according to the invention is further adapted to additionally detect the peak value of the supplied supply voltage or the rectified supply voltage, the concern of a sufficient input-side supply voltage is determined only when the peak value meets predetermined condition, in particular exceeds a predetermined reference value.
  • the response of the operating device to the detected type of supply voltage can then be set, for example, according to the respective country-specific specifications.
  • FIG. 1 shows schematically an operating device for operating lamps
  • Figure 2 shows an inventively designed circuit arrangement for
  • FIGS. 4a to 4c show the course of the three supply voltage types in the case of a low output-side load
  • FIGS. 5a and 5b show the influence of the frequency of a supply voltage on the
  • Figure 6 is another scheme of the frequency dependence in determining whether a sufficient supply voltage is applied.
  • FIG. 7 shows the procedure according to the invention for determining the influence of the
  • Illuminants 50 In the illustrated embodiment, it is assumed that bulbs in the form of LEDs, the problem underlying the invention, however, is independent of the exact nature of the light source, which is why the invention is therefore not limited to a specific type of lamp. It may also be in the same way to gas discharge lamps, halogen lamps, organic LEDs
  • the operating device 10 may be embodied, for example, in the form of a so-called electronic ballast or a converter.
  • the mode of operation of the operating device 10 is to internally convert the supply voltage Vmains present on the input side into a suitable operating voltage for the operation of the lighting device 50, and then to output this voltage via the output connections.
  • the conversion of the supply voltage Vmains takes place here depending on the type of the connected lighting means 50 and optionally on additional control information in the form of
  • Another function of the illustrated operating device 10 is a
  • the luminaire including the operating device 10 and the lighting means 50 is in a larger lighting system
  • an emergency operation of the lamps 50 should take place.
  • This may mean, for example, that the LEDs 50 are operated permanently with a predetermined brightness in order to allow persons located in the area illuminated by the luminaire to orient themselves sufficiently reliably and, if appropriate, to leave this area quickly.
  • the operating device 10 should in this case be able to independently detect a corresponding state of emergency.
  • this state of emergency is signaled by the fact that instead of a supply AC voltage, a DC voltage via the power supply lines 1, 2 is provided.
  • a DC voltage via the power supply lines 1, 2 is provided.
  • Circuit arrangement are presented, with the help of an evaluation of the input-side supply voltage Vmains.
  • the circuit arrangement 20 shown in FIG. 2 shows the input-side region of the operating device 10, an illustration of the further components of the operating device 10, which are responsible for the above-mentioned conversion of the supply voltage Vmains into an operating voltage suitable for operating the lighting device 50 omitted for the sake of clarity. In the first place, those components that are responsible for the evaluation and evaluation of the input voltage Vmains are shown.
  • the voltage Vmains applied to the input terminals thus first passes through a noise filter 21 which, as shown, consists of two symmetrical reactors / inductors LI and L2 and a capacitor C1 which connects the parallel inductors LI, L2 to one another.
  • the output of the noise filter 21 is applied to the terminals AI and A2 of the one diagonal of a bridge rectifier B, of four
  • Bridge diodes Dl, D2, D3 and D4 is formed.
  • One terminal A4 of the other diagonal of the bridge rectifier B is connected to ground M, the other terminal A3 of the other bridge diagonal carries a voltage, which is then further processed by the other components of the operating device, where it is incidental, as mentioned above, in what way this further processing takes place.
  • the actual evaluation circuit 25 then consists of an interference suppression capacitor C2, but in particular of a comparator K, which is fed as the first input signal across the measuring resistor R2 falling voltage.
  • a second input signal for the comparator K is generated by an arrangement consisting of a unit 26 for generating reference voltages and a multiplexer 27.
  • one of the reference voltages is then transmitted to the comparator K via the multiplexer 27 as a further input signal.
  • the output signal of the comparator K is then evaluated, for example, by a corresponding evaluation circuit 28, which detects the supply voltage types based on this in the manner described below and, if necessary, adapts the operation of the operating device 10. This procedure for identifying the supply voltage type will be explained in more detail below with reference to FIGS. 3 and 4.
  • FIGS. 3 a to 3 c initially show the course of the over the
  • Measuring resistor R2 sloping voltage V, which represents a first input signal for the comparator K as already mentioned. Shown here is in particular the voltage curve for a relatively high output-side load, ie
  • FIG. 3 a shows the course for a quasi-DC supply
  • FIG. 3 c shows the measuring signal in the case of a pure DC supply voltage.
  • this is a low reference voltage, which primarily serves to detect whether there is any voltage at all on the input side of the device. Since the operating device 10 must react very quickly in the event that a voltage drop to zero, this comparison with the low reference voltage Vrefl is first performed to ensure here that in principle a supply voltage for the device 10 is available. As the figures show, then at the output of the low reference voltage Vrefl
  • Comparator K will receive a signal which indicates that this low reference voltage is repeatedly exceeded and undershot in the case of a supply AC voltage, in the case of a DC supply voltage or a quasi-DC voltage, however, is permanently exceeded.
  • a high reference voltage Vref2 generated by the unit 26 is then provided by the multiplexer 27, which is likewise shown in FIGS. 3a to 3c. This is - as seen - now alternately exceeded or undershot in the case of a supply AC voltage or a quasi-DC voltage, in the case of a pure DC supply voltage, however, this second reference voltage Vref2 is either permanently exceeded or - as shown in the example - permanently undercut.
  • FIGS. 4a to 4c now show the case of a low output load, which is present, for example, when the luminous means 50 are operated at low power, that is to say at very low dimming levels, for example.
  • a low output load which is present, for example, when the luminous means 50 are operated at low power, that is to say at very low dimming levels, for example.
  • the course of the measuring signal approximates approximately the course of the signal in the case of a quasi-DC supply voltage, in which case the lower reference value Vrefl can no longer be used as in the case of FIG. AC voltage is regularly exceeded and exceeded.
  • Vref and Vref2 On the basis of a comparison with the two reference voltages Vref and Vref2, it is thus possible to clearly detect a pure direct voltage, a
  • this third reference voltage Vreö is selected such that it lies between the two previously described reference voltages Vref and Vref2, in such a way that they in turn also have a small output load in the case of a supply alternating voltage regularly exceeded or exceeded, in the case of a quasi-DC supply, however, is permanently exceeded. This in turn makes it possible to distinguish between the supply AC voltage and the quasi-DC supply voltage, so that ultimately the three different supply voltage types can also be clearly identified in these cases.
  • the height of the additionally used third reference voltage Vreö is variable.
  • the height of the third reference voltage is set as a function of the dimming value of the lighting means 50.
  • the dimming value and thus the power at which the lighting means 50 are operated influences the load applied to the operating device 10 on the output side, which in turn influences the course of the measuring signal.
  • a third reference voltage value Vero which takes into account the dimming value thus permits a more precise distinction between the two
  • Circuitry also an alternative solution can be realized, is dispensed with the use of the multiplexer. In this case, however, several comparators had to be used to allow a comparison of the measurement signal with the three reference voltages.
  • Training relates to an effect that has not been considered so far, but in reality can have a certain influence on the reliable operation of the operating device. Incidentally, this idea can also be realized independently of the previously described comparison of the rectified supply voltage with a total of three different reference voltages.
  • Supply voltage or the exceeding of a corresponding reference voltage is detected only if this is done over a certain period of time, for example, 6 ms. That is, only when the reference voltage is permanently exceeded for at least 6 ms, this is taken into account by the evaluation unit in a corresponding manner, to possibly short-term fluctuations
  • FIGS. 5a and 5b This effect is shown in FIGS. 5a and 5b, with FIG. 5a initially showing the half-waves of two different ones
  • Supply voltages VI and V2 shows that although the same maximum value Vlmax or V2max, but have different frequencies.
  • the height of the reference voltage would have to be adapted to the frequency of the applied supply voltage.
  • internal deviations of the clock of the circuit arrangement could have a corresponding
  • Reference value Vref must be lowered so that it is ensured that even with the maximum applied supply voltage frequency and possible deviations of the internal clock still reliable concern of a
  • Supply voltage with a peak value of 100 volts reliably, however, will mean that at lower frequencies already lower peak values of the supply voltage cause it to be interpreted as sufficient supply voltage. For example, as shown in FIG. 6, a lower frequency of 47 Hz would cause the supply voltage to sense a sufficient supply voltage already at a peak of 70 volts, this value then increasing continuously until finally at the maximum frequency of 63 Hz corresponds to the actual desired peak value of 100 volts.
  • a solution must be found for taking account of the frequency-dependent effects described above.
  • the solution according to the invention is to provide an additional criterion for actually detecting the presence of a sufficient supply voltage.
  • fiction, recourse to a parameter the in many control gear for bulbs is automatically detected anyway and is thus available without additional effort. It is the peak value of the monitored supply voltage or the rectified supply voltage. This peak value is independent of the respective frequency and offers
  • Procedure of the evaluation unit which ultimately decides whether a sufficient supply voltage is applied and accordingly the operating device is started and which mode is selected for later operation.
  • a first step S1 the basic checking is performed as to whether a supply voltage is applied, wherein it is further determined, for example, in the manner described with reference to FIGS
  • This information is then output to a subsequent block S2, which then in a further step with the available peak values
  • Reference values compared In this case, provision is made in particular for suitable reference values to be selected as a function of the supply voltage type with which the peak value of the supply voltage is compared. Only when this second test fails positive is it found that a sufficient supply voltage is applied to the input side and accordingly the further operation of the device is started S3. As already mentioned, the decision can then be made in this case in which operating mode the device is displaced. The assessment as to whether the second criterion is met can again be effected by the evaluation circuit 25 or a corresponding logic which is part of the evaluation circuit 25 or is connected thereto.
  • Supply voltage is detected, but especially at low frequencies does not prematurely activation of the operating device.
  • the reliability of the device is significantly increased by only a small extra effort.
  • Reference voltage is detected in principle, whether an AC supply voltage applied to the operating device or not, which may be due to the
  • Supply voltage can be detected, in which case depends on the
  • a suitable operating mode can be selected. It can be provided that a user via wired interface via the operating device 10 or wirelessly defines the operating modes, which should occur depending on the detected supply voltage. In addition, it may be possible for the user to change the operating modes during operation of the
  • Operating device 10 can change. In this way can then be specified, for example, that is set at a quasi-DC voltage that an emergency light operation or normal operation should take place. Furthermore, the user can set, for example, that depending on the detected
  • Operation of the operating device 10 can therefore be adapted extremely flexibly to the various power supply systems and procedures in order to signal an emergency operation.

Abstract

Une tension d'alimentation (Vmains), fournie au dispositif de commande (50), est redressée puis comparée à au moins une première tension de référence (Vref1) dans un procédé d'identification de l'application d'une tension d'alimentation côté entrée suffisante. L'application d'une tension d'alimentation côté entrée suffisante est déterminée lorsque la tension d'alimentation redressée devient supérieure à la tension de référence pendant une période prédéterminée. De plus, la valeur de crête de la tension d'alimentation fournie (Vmains) ou de la tension d'alimentation redressée est également détectée et l'application d'une tension d'alimentation côté entrée suffisante est déterminé uniquement lorsque la valeur de crête remplit une condition prédéterminée, en particulier devient supérieure à une autre valeur de référence prédéterminée.
PCT/EP2017/081527 2016-12-07 2017-12-05 Procédé d'identification du type d'une tension d'alimentation fournie à un dispositif de commande de moyens d'éclairage WO2018104302A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17825758.0A EP3552296B1 (fr) 2016-12-07 2017-12-05 Procédé d'identification du type d'une tension d'alimentation fournie à un dispositif de commande de moyens d'éclairage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102016224349.7A DE102016224349A1 (de) 2016-12-07 2016-12-07 Verfahren zum Identifizieren des Typs einer einem Betriebsgerät für Leuchtmittel zugeführten Versorgungsspannung
DE102016224349.7 2016-12-07
ATGM232/2017 2017-10-23
AT23217 2017-10-23

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WO2018104302A1 true WO2018104302A1 (fr) 2018-06-14

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060066258A1 (en) * 2004-09-28 2006-03-30 Lane John E Equipment and methods for emergency lighting that provides brownout detection and protection
DE102007040555A1 (de) 2007-08-28 2009-03-05 Tridonicatco Gmbh & Co. Kg Verfahren und Schaltung zum Identifizieren der Art einer Spannung, insbesondere der einem Betriebsgerät für Notlichtleuchten zugeführten Betriebsspannung
WO2012083325A1 (fr) * 2010-12-22 2012-06-28 Tridonic Gmbh & Co. Kg Analyse de la tension d'alimentation des ballasts de luminaires
WO2014013407A1 (fr) * 2012-07-16 2014-01-23 Koninklijke Philips N.V. Dispositif à circuit d'attaque et procédé de commande d'une charge, notamment d'une unité d'éclairage pour commander le courant d'entrée d'alimentation afin de satisfaire des conditions prédéfinies
EP2747516A1 (fr) * 2012-12-18 2014-06-25 Dialog Semiconductor GmbH Circuit et procédé permettant de détecter la durée de l'interruption d'une entrée de secteur
WO2016168659A1 (fr) * 2015-04-17 2016-10-20 Hubbell Incorporated Dispositif d'éclairage de secours programmable comprenant un module de communication en champ proche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060066258A1 (en) * 2004-09-28 2006-03-30 Lane John E Equipment and methods for emergency lighting that provides brownout detection and protection
DE102007040555A1 (de) 2007-08-28 2009-03-05 Tridonicatco Gmbh & Co. Kg Verfahren und Schaltung zum Identifizieren der Art einer Spannung, insbesondere der einem Betriebsgerät für Notlichtleuchten zugeführten Betriebsspannung
WO2012083325A1 (fr) * 2010-12-22 2012-06-28 Tridonic Gmbh & Co. Kg Analyse de la tension d'alimentation des ballasts de luminaires
WO2014013407A1 (fr) * 2012-07-16 2014-01-23 Koninklijke Philips N.V. Dispositif à circuit d'attaque et procédé de commande d'une charge, notamment d'une unité d'éclairage pour commander le courant d'entrée d'alimentation afin de satisfaire des conditions prédéfinies
EP2747516A1 (fr) * 2012-12-18 2014-06-25 Dialog Semiconductor GmbH Circuit et procédé permettant de détecter la durée de l'interruption d'une entrée de secteur
WO2016168659A1 (fr) * 2015-04-17 2016-10-20 Hubbell Incorporated Dispositif d'éclairage de secours programmable comprenant un module de communication en champ proche

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