• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an operating device for lamps and a corresponding method. The operating device (6) has a first input connection L and a second input connection N, by means of which the operating device (6) can be connected to a supply voltage source. It also has detection means (13) for separately detecting a first voltage, which corresponds to a positive voltage component of the supply voltage "mains", and a second voltage, which corresponds to a negative voltage component of the supply voltage "mains", and an evaluation unit (14) for Evaluation of the recorded voltages. A first voltage divider (22) for generating a first measurement signal mains1 and between the second input terminal N and the ground potential are a second voltage divider (23) for generating a second between the first input connection L and a ground potential of the operating device (6) Measurement signal mains2 arranged. The acquisition means (13) for supplying the two measurement signals mains1, mains2 are connected to the evaluation unit (14).
    公开号:AT16610U1
    申请号:TGM52/2015U
    申请日:2015-02-24
    公开日:2020-02-15
    发明作者:Auer Hans；Dipl Ing Marent Günter；Ortega Joan
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    OPERATING DEVICE WITH DETECTING MEANS FOR DETECTING PHASE GATES AND / OR SECTIONS IN THE SUPPLY VOLTAGE The invention relates to an operating device for operating lamps, in particular LED lamps, and to a method for controlling a lamp using the operating device.
    In order to be able to operate modern lamps on a domestic power supply, a so-called control gear is often required. The operating device converts the supply voltage into a voltage and power supply adapted to the respective illuminant, for example and in particular an LED or a plurality of LEDs. This adjustment can also be made variably, i.e. Settings can be made with the aid of which the illuminant can be dimmed, for example, or can be adapted with regard to the emitted color spectrum. Usually separate control devices are used to interact with the control gear. For this purpose, the operating device has control connections via which the command signals are received. It becomes problematic when such lamps, which require an operating device, are used in exchange for conventional lamps, for example light bulbs. Usually there is no control line on the building side and retrofitting is correspondingly expensive.
    In order to simplify the exchange of outdated lamps for modern lamps, lamps have been developed in the past in which the operating device is housed in a screw base. This means that the illuminant and the control gear are integrated together in a lamp similar to an incandescent lamp. In order to be able to supply the operating device with information that corresponds to user commands, for example, a separate control line is of course not available in such a case. Therefore, possibilities have already been created in the past to also transmit information to the operating device via lines with which a voltage and power supply takes place. Such a system is known for example from DE 10 2012 206 056 A1. It is described here that information can be impressed on the pulsating supply voltage, for example by temporarily rectifying the AC voltage. As an alternative, it is also described to use phase gates or phase segments. In principle, any change in the voltage curve can be used to transmit information as long as the receiving side, in this case the operating device, is able to recover the information.
    [0004] According to DE 10 2012 206 056 A1, to recover this information, a current flow is generated via a measuring resistor and the associated voltage drop is measured. Different voltage drops at the measuring resistor are generated for the positive and for the negative half-wave of the supplied supply voltage, since two resistors of different dimensions are provided between the L-wire and the N-wire. The center of these two resistors is connected to the measuring resistor in order to generate the current flow already described. During the measurement, only one of the two resistors is in series with the measuring resistor in the current path.
    [0005] The problem with the circuit described is that the detection of phase sections or phase sections cannot always be carried out reliably. Interferences, such as those caused by parasitic capacitances, in particular in the region of the zero crossing of the pulsating supply voltage, make it difficult to reliably detect a phase cut.
    It is therefore the object of the invention to provide an operating device for lamps and a method for the reliable determination of a supply voltage imprinted information. For the sake of uniform presentation, it is assumed below that such information is used as a phase gating or phase section of the supply voltage
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    AT 16 610 U1 2020-02-15 Austrian patent office. However, the operating device according to the invention and the method can also readily recognize, for example, the transition from a pulsating supply voltage to a DC voltage. This can occur if, due to a power failure, a switchover to an emergency power supply takes place, which is usually operated from an accumulator or a battery and thus feeds a DC voltage into the supply network. A targeted switching of polarities in the pulsating voltage supply can also be recognized.
    [0007] The operating device according to the invention has a first input connection and a second input connection. By means of these connections, the operating device can be connected to a pulsating supply voltage source in order to supply the operating device with electrical power, with which a lamp connected to the operating device can be supplied. The operating device also has detection means which enable separate detection of a first voltage, that of a positive half-wave, and a second voltage, which corresponds to a negative half-wave of the supply voltage. The measurement signals generated by the detection means on the basis of the first voltage and the second voltage are used for further determination of the information. For this purpose, an evaluation unit is provided for evaluating these measurement signals.
    According to the invention, a first voltage divider is now arranged between the first input connection and a ground potential of the operating device as a detection means and a second voltage divider between the second input connection and the ground potential. A first measurement signal for the first voltage is generated with the aid of the first voltage divider and a second measurement signal for the second voltage is generated with the aid of the second voltage divider. The measurement signals are the voltages tapped at the respective center points of the voltage dividers. These are fed to the evaluation unit.
    In contrast to the prior art, the advantage of the described procedure is that two independent signals are present, each signal being assigned to a half-wave of the supply voltage. The difference between these two signals enables an exact representation of the original supply voltage to be obtained. In contrast to the prior art, parasitic capacitances therefore do not have a negative effect. The robustness of the detection is thus considerably improved, in particular when using phase gates or phase segments for the transmission of information to the operating device.
    Advantageous developments of the operating device according to the invention are set out in the subclaims.
    As already stated above, the evaluation unit is supplied with two input signals, each input signal being assigned to a half-wave of the pulsating supply voltage. A difference signal is then formed in the evaluation unit. The further evaluation can then take place on the basis of this difference signal, it being particularly advantageous that the signal errors described can be avoided by parasitic effects, in particular in the region of the zero crossing.
    [0012] Furthermore, rectification of the difference signal is preferably carried out. The processing carried out in the evaluation unit is preferably carried out digitally, for which purpose the two measurement signals are digitized before further processing, in particular before the difference signal is formed.
    Finally, before the result of this evaluation is fed to a control unit, the rectified difference signal is fed to a comparator, an integrating circuit or a differentiating circuit. With the aid of the comparator, the integrating circuit or the differentiating circuit, the information which was impressed on the supply voltage supplied to the operating device can be recognized more easily in the control unit. The resulting waveforms are characteristic of the imprinted information and are made visible with the aid of the comparator, the integrating circuit or the differentiating circuit.
    [0014] Further features, advantages and characteristics of the present invention are described in
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    AT 16 610 U1 2020-02-15 Austrian patent office
    Reference to the accompanying drawings using exemplary embodiments explained below.
    [0015] The figures show:
    Fig. 1 shows the basic structure of a system in which the present invention is used, Fig. 2 shows a diagram to illustrate the disadvantages of the prior art and the advantage of the solution according to the invention, [0018] Fig. 3 shows a schematic illustration of an operating device with a lamp connected to it, [0019] FIG. 4 shows a detailed illustration of part of the operating device according to the invention, [0020] FIG. 5 shows a schematic illustration of the evaluation unit of the operating device according to the invention and the subsequent control unit, [0021] FIG. 6 shows a diagram to clarify the procedure for obtaining the difference signal in the evaluation unit, and [0022] FIG. 7 shows a diagram to explain the processing of further processing of the difference signal in the evaluation unit.
    The invention finds e.g. Application in the field of so-called retrofit LED lamps, which can replace e.g. of incandescent lamps or halogen lamps. Correspondingly, retrofit lamps have connection bases with which they are introduced into known lamp holders, e.g. screwed or plugged in. However, the invention can always be used when information is to be transmitted to an operating device, but only supply lines are available for the transmission of the information. Of course, this can also be the case with an external control gear.
    [0024] LED lamps have one or more LEDs, at least one of which emits white light, preferably with color conversion. As an alternative or in addition to the white LED (s), however, monochromatic LEDs, preferably emitting in the red spectrum, may also be present.
    1, a schematic structure of a lamp or retrofit lamp, in particular retrofit LED lamps, with an integrated operating device will now be described. However, it should be understood that other, appropriately designed operating devices for illuminants should also be included. The retrofit LED lamp L according to the present invention comprises a screw base 2, a glass bulb 3 and illuminants, e.g. one or more inorganic LEDs or OLED lamps 8. Other lamps, such as, for example, halogen lamps or gas discharge lamps, can also be operated by the operating device.
    The screw base 2 is suitable for a version of a corresponding incandescent lamp, which is to be replaced by the retrofit LED lamp L. A metal screw thread 5 and an end pole 4 of the lamp L form connection contacts via which the retrofit LED lamp L is supplied by a signal generator 1 with a supply voltage Vmains. The supply voltage Vmains is generated on the basis of the mains alternating voltage VN by the signal generator 1.
    The signal generator 1 comprises a switch S and a button T. When the switch S is actuated, the signal generator 1 is separated from the mains AC voltage VN, so that there is no supply voltage Vmains on the output side. The button T is responsible for manipulating the mains voltage VN. If this button T is not pressed, the supply voltage Vmains corresponds to the mains voltage VN. In contrast, the shape of the supply voltage Vmains is changed as long as the button T is pressed. Several buttons can also be provided, so that several different forms of the supply voltage Vmains can also be generated. The mains voltage is manipulated in accordance with a specific protocol which specifies which information is to be transmitted
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    AT 16 610 U1 2020-02-15 Austrian patent office which voltage curve should be transmitted.
    The arrow 9 indicates that and how the supply voltage Vmains, for example in the form of AC half-waves, is passed on to an operating device 6 located in the LED lamp L. The operating device 6 generates a DC voltage, which - as indicated by the arrow 10 - is supplied to an LED module 7 on which the LEDs 8 emitting the light sit.
    For a better understanding of the following description of the details of the invention, the problem of determining information impressed by the supply voltage will first be explained with the aid of the diagram in FIG. 2. As already stated at the beginning, it is assumed for the following explanations that information is impressed on the supply signal by using phase gates or phase segments. However, other options, such as temporary rectification of the supply voltage, are also permitted and can also be evaluated particularly safely and easily with the aid of the invention.
    The course of a supply voltage Vmains is initially shown in FIG. 2. The curve shown does not show any additional information contained, and thus the pure, non-manipulated supply voltage. The supply voltage Vmains is composed of positive and negative half-waves, which are labeled "Ipar" and "npar" in the diagram. These half-waves are positive in relation to the internal ground potential of the control gear. It can be seen that the half-waves labeled “Ipar” are each distorted as they rise from 0 volts. Such deformations in the signal curve arise, for example, from parasitic capacitances and are therefore unavoidable in practice. If a common mode signal were used as the basis for the further evaluation, as is indicated by “comode” in FIG. 2 in the diagram in FIG. 2, it is precisely these areas that have a phase control or phase control would coincide, which are influenced by such distortions in the region of the zero crossing. This makes finding and evaluating the phase cuts difficult. The area 21 highlighted in the diagram clearly shows the disturbance in the signal curve. The signal does not drop to 0 volts here, as would be the case with an undisturbed signal. According to the invention, a difference signal is now used instead of such a common mode signal. This means that the resulting distortions in the two signals "Ipar" and "Inpar" are so present that they cancel each other out when a difference is formed. If one considers the difference between “Ipar” and “npar”, one obtains the signal designated “diffmode” in the diagram in FIG. 2, which corresponds exactly to the input signal, that is to say the supply voltage Vmains, as an image.
    For illustration, a 220 volt AC voltage is used in FIG. 2, as is standard for example in Europe.
    3, an operating device 6 according to the invention is now shown in a greatly simplified representation. The operating device 6 is supplied with a supply voltage Vmains, as shown by the arrow 9. FIG. 3 shows that an LED module 7 is supplied with an LED lamp 8 with electrical power via the operating device 6. In addition, it is indicated that, in addition to this LED module 7, at least one further LED module 7 'can also be provided, the structure of which is either the same as the LED module 7 or different from the LED module 7. So that the LED modules 7, 7 'can be operated on the supply voltage Vmains, rectification of this AC voltage is necessary. For this purpose, the supply voltage Vmains is supplied to an AC / DC converter 11 and the rectified AC voltage is then passed on to a DC / DC converter 12. In order to enable variable operation of the LED module 7, the DC / DC converter 12 is controlled by a control unit 15 which specifies parameters whose implementation by the DC / DC converter 12 is e.g. Dimming enables. The basic procedure for dimmer or for changing a color value of the emitted light of the LED module 7 does not differ from systems known per se, in which information about this is transmitted to the operating device 6 via separate control lines.
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    AT 16 610 U1 2020-02-15 Austrian Patent Office [0033] In the operating device 6 according to the invention, however, the information is not transmitted via separate control lines, but is impressed on the supply voltage by manipulating the temporal voltage profile and then extracted again from the supply voltage in the operating device 6 , From this, a control command is generated by the control unit 15 and, as indicated by the arrow 16, fed to the DC / DC converter 12 for implementation.
    According to the invention, detection means 13 are now provided, with which a first voltage and a second voltage are determined separately from one another. The first voltage is the voltage of the first connection of the operating device 6, that is to say the L conductor, in relation to the ground potential of the operating device 6. The second voltage is accordingly the voltage of the second connection of the operating device 6, that is to say the N conductor, in relation to the ground potential of the control gear 6. Measurement signals are generated from the voltages in the manner described below. These measurement signals, referred to as mains1 or mains2, are then fed to the evaluation unit 14, in which the measurement signals mainsl and mains2 are further processed. Through the further processing of the measurement signals in the evaluation unit 14, a signal curve which is characteristic of the originally impressed information is generated and is evaluated in the control unit 15. The control unit 15 determines the control command on which this signal is based and generates a control signal for controlling the DC / DC converter 12.
    The generation of the measurement signals mains1 and mains2 will now be described with reference to FIG. 4, which thus shows part of the operating device 6 in a more detailed version. The supply voltage Vmains supplied is received by the operating device 6 at a first input connection L and a second input connection N. The supply voltage Vmains can first be preprocessed, for example for filtering undesired portions of the supply voltage Vmains. FIG. 4 shows an example of a capacitance C02 which is provided between the first input connection L and the second input connection N, that is to say between the L wire and the N wire, and inductors L01 which are present in each branch , The two branches, L and N, are connected both to the detection means 13 and to the AC / DC converter 11. 4 shows a capacitance C10, which is connected to the output connections of the bridge rectifier (AC / DC converter 11) in order to smooth the rippled DC voltage obtained there. This capacitance C10 is arranged between the positive output connection of the bridge rectifier and the ground potential of the operating device 6. The detection means 13 consist of at least a first voltage divider 22 and a second voltage divider 23. The first voltage divider 22 contains a series circuit of a first resistor R1 with a second resistor R2. The series connection is connected to the L branch, that is to say the first input connection on the one hand and the ground potential of the operating device 6 on the other hand. At the first center point M1 located between the two resistors R1 and R2, a first measurement signal is tapped, which is designated mainsl.
    The second voltage divider 23 also contains two resistors, namely a third resistor R3 and a fourth resistor R4, which are also connected in series. The second voltage divider 23 is connected on the one hand to the N branch (second input connection) and on the other hand also to the ground potential of the operating device 6. At the second center point M2 of the second voltage divider 23, a second measurement signal is tapped, which is referred to as mains2.
    In FIG. 4 it can also be seen that both the first center point M1 and the second center point M2 are additionally connected to the ground potential of the operating device 6 via capacitors C03 and C04, respectively. With the help of these capacitances C03, C04, unwanted harmonics can be removed from the tapped first measurement signal mains1 and the tapped second measurement signal mains2. 4 schematically shows what the two measurement signals look like: They represent the respective half-wave of the L-branch or the N-branch with respect to the ground potential of the operating device 6, the amplitudes being lower than that due to the voltage dividers 22, 23 first and second
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    AT 16 610 U1 2020-02-15 Austrian patent office
    Voltage of the L or N conductor compared to the ground potential.
    4 also shows a parasitic capacitance C p which is responsible for the disturbances in the common-mode signal explained in relation to FIG. 2. Since this parasitic capacitance C p is of course not an explicit component of the circuit, it has been drawn in dashed lines in the illustration.
    4 is a schematic representation and it is therefore self-evident that further components are present in a real circuit to adapt to the specific circumstances. An example of a capacitance C1 and an inductance L02 are also shown in FIG. 4, which serve to stabilize the ground potential.
    The further processing of the measurement signals mains1 and mains2, which are at the center points M1 and M2 of the mutually independent voltage dividers 22 and 23, will now be explained with reference to FIG. 5. FIG. 5 shows the evaluation unit 14 of FIG. 3 in a specific embodiment. The two measurement signals mains1 and mains2 are first fed to a means for forming a difference signal 17. For this purpose, the values of the mains2 measurement signal are subtracted, for example, from the values of the mains1 measurement signal. The result is a difference signal. The difference signal is then fed to a means for rectifying the difference signal 19. Its output signal, that is to say the rectified differential signal, is then actually fed to at least one analysis device to determine whether information has been impressed on the supply voltage Vmains by changing the signal shape of the supply voltage Vmains. In the exemplary embodiment shown, a comparator 25, a differentiating circuit 26 and an integrating circuit 27 are shown for analysis. The rectified differential signal is compared with a reference voltage V Ref with the aid of the comparator 25. The output signal Vout of the comparator 25 thus indicates the point in time at which the rectified difference signal was above a threshold value determined by the reference voltage V Ref . The resultant curve of the output voltage Vout of the comparator 25 can then be compared with a pattern. Different patterns stand for different transmitted information. If the output voltage Vout matched, the supply voltage Vmains was thus stamped with information which corresponds to the control command assigned to this pattern. This check as to whether the course of the output voltage Vout of the comparator 25 corresponds to a control command takes place in the control unit 15. For this purpose, the output signal Vout of the comparator 25 is fed to a logic. The command determined by this logic is then fed to a device 20 which generates a control signal, with which the DC / DC converter 12 is then controlled, as already explained in relation to FIG. 3.
    As an alternative or in addition to the comparator 25, a differentiating circuit 26 can also be provided. A high-pass filter, for example, can be used as the differentiating circuit 26. The signal output at the output AA of the differentiating circuit 26 is again fed to the logic of the control unit 15 for determining an assigned control command. In the logic of the control unit 15, the occurrence of values from above a threshold value at the output AA of the differentiating circuit 26 is detected and in turn, if necessary, assigned to an underlying command or information that has been impressed on the supply voltage Vmains.
    The rectified differential signal can also be supplied to an integrating circuit 27, implemented, for example, as a low-pass filter. The low-pass filtering corresponds to the formation of an average value MW. This mean value, or its course over time, is also characteristic of the original signal shape of the supply voltage Vmains and thus also of suitable information to be detected. This mean value is also supplied to the logic of the control unit 15 for recognizing commands.
    The two measurement signals mains1 and mains2 in the evaluation unit 14 are preferably processed digitally. For this purpose, the two measurement signals mains1 and mains2 are digitized in a device (not shown) before they are sent for further processing.
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    AT 16 610 U1 2020-02-15 Austrian Patent Office [0044] The processing of the measurement signals mains1 and mains2 is to be explained once again below with reference to FIGS. 6 and 7, as was already briefly described above with reference to FIGS. 4 and 5. 6 shows a supply voltage which is stamped with information, here referred to as mains. In the example shown, the stamping of the information is a phase gating of the negative half-wave. With the aid of the first voltage divider 22 of the detection device 13, the voltage curve of the positive half-wave of the supply voltage mains1 is detected. The mainsl measurement signal is therefore a signal that reflects the potential profile of the L conductor relative to the ground potential of the control gear. It corresponds to the positive half-wave of the mains supply voltage.
    In the area of the negative half-waves, on the other hand, the measurement signal mains1 is largely 0, the disturbance due to the parasitic capacitance being recognizable at the transition to the second half-wave shown in FIG. It should also be noted that the amplitude of the mainsl measurement signal is determined by the selected resistances of the first and second resistors R01, R02. For easier calculation, the two voltage dividers 22 and 23 should have the same dimensions. With a symmetrical AC voltage, as shown in the uppermost part of the diagram in FIG. 6, the amplitudes of the measurement signals mains1 and mains2 are also the same. The third part of the diagram in FIG. 6 shows the time profile of the second measurement signal mains2, which is generated with the aid of the second voltage divider 23 for the N conductor. In this case, the time course of the potential of the second input connection N with respect to the ground potential is represented by the second measurement signal mains2. It can be seen that the amplitude of the half-wave of the mains1 measurement signal and the half-wave of the mains2 measurement signal are the same and that the phase gating in the second mains2 measurement signal can be clearly recognized. The fault in the area of the zero crossing of the supply voltage mains can also be seen.
    The lowermost part of the diagram now shows the time profile of the difference signal Diffmains, which is formed from the first measurement signal mains1 and the second measurement signal mains2. The disturbances that could be seen in the area of the zero crossing of the mains supply voltage in the two measurement signals mainsl and mains2 are compensated for, so that the difference signal Diffmains corresponds exactly to the original mains supply signal except for a proportionality factor. This signal “diffmains”, which was generated with the means for forming a difference signal 17 in the evaluation unit 14, is the basis for the further evaluation.
    The course of the further evaluation is shown in FIG. 7, the difference signal being shown again in the uppermost part of the diagram for the sake of completeness. Starting from the difference signal, the amount of the difference signal “absns” is now formed, which takes place in the evaluation unit 14 with the aid of the means for rectification 19 of the difference signal. Since the difference signal "diffmains" shows no interference even in the area of its zero crossing, the rectified difference signal "absns" actually drops to 0 during the transition from the negative half-wave to the positive half-wave of the mains supply voltage. The distortion of the common mode signal explained previously in the explanation of the problem with reference to FIG. 2 does not occur here.
    This rectified difference signal “absns” is now, as has already been briefly explained with reference to FIG. 5, fed to a comparator 25, a differentiating circuit 26 or an integrating circuit 27 or more thereof. The course of the output voltage Vout of the comparator 25 is designated “cmp” in the diagram in FIG. 7. The reference voltage V ref of the comparator 25 is set to a small, positive value, for example 0.1 volt. While in the areas of the phase gating the rectified difference signal lies below this threshold for a relatively long time, when crossing the zero from the negative half-wave to the positive half-wave of the difference signal the rectified difference signal “absns” is only relatively short below this threshold value. This results in the time course as shown in the third part of the diagram and referred to as "cmp". It can be seen that the course of "cmp" in the area of the phase gating is clear in time
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    AT 16 610 U1 2020-02-15 Austrian patent office falls to zero longer than in the area of a zero crossing of the difference signal "diffmains" without phase gating or phase section, which enables a reliable detection of the existence of a phase gating (or phase section). Through different phase gates, combinations with phase segments and / or time pauses between the phase gates, more complex information can also be transmitted, depending on a defined communication protocol.
    The rectified differential signal “absns” can also be evaluated with the aid of the integrating circuit 27. The resulting signal curve at the output of the integrating circuit 27 is designated “int” in the fourth part of the diagram in FIG. 7. Here too there is a clear difference between the area that corresponds to the phase gating in the supply voltage and the area without phase gating. The signal only drops to 0 in the area of the phase gating, so that the zeros can be used to determine the existence of a phase gating. Finally, the bottom part of the diagram in FIG. 7 also shows the output signal at the connection AA of the differentiating circuit 26. The steep rise at the end of the phase gating results in a “diff” peak over the course of time of this signal, which can easily be detected on the control unit 15 side.
    It is common to all evaluations that the determination of the temporal position of the detected phase sections can be used to identify different commands. The resulting patterns only have to correspond to a specific protocol, which specifies the use of the phase gates and phase segments for impressing information on the supply voltage.
    权利要求:
    Claims (10)
    [1]
    1. control gear for illuminants, comprising:
    a first input connection L and a second input connection N, by means of which the operating device (6) can be connected to a supply voltage source,
    Detection means (13) for the separate detection of a first voltage, which corresponds to a positive voltage component of the supply voltage "mains", and a second voltage, which corresponds to a negative voltage component of the supply voltage "mains", and an evaluation unit (14) for evaluating the detected voltages characterized in that a first voltage divider (22) for generating a first measurement signal mains1 is arranged between the first input connection L and a ground potential of the operating device (6) and between the second input connection N and the ground potential a second voltage divider (23 ) is arranged to generate a second measurement signal mains2 and that the detection means (13) for supplying the two measurement signals mains1, mains2 are connected to the evaluation unit (14).
    [2]
    2. Operating device according to claim 1, characterized in that the evaluation unit (14) contains means for forming a difference signal (17) from the first measurement signal mains1 and the second measurement signal mains2.
    [3]
    3. Operating device according to claim 1 or 2, characterized in that the evaluation unit (14) contains means for rectifying the difference signal (19).
    [4]
    4. Operating device according to claim 3, characterized in that the evaluation unit (14) has a comparator (25), an integrating circuit (27) or a differentiating circuit (26) to which the rectified differential signal or the amplified and rectified differential signal is supplied.
    [5]
    5. Operating device according to one of claims 1 to 4, characterized in that the evaluation unit (14) has means for digitizing the first and the second measurement signal.
    [6]
    6. Method for determining information impressed on a "mains" supply voltage by an operating device (6), the operating device (6) being supplied with the "mains" supply voltage via a first connection L and a second connection N,
    Generation of a first measurement signal “mains1” by means of a first voltage divider (22) arranged between the first connection L and a ground potential, and a second measurement signal “mains2” by means of a second voltage divider (23) arranged between the second connection N and the ground potential. .
    Feeding the first measurement signal "mainsl" and the second measurement signal "mains2" to an evaluation unit (14), and
    Evaluation of the two measurement signals "mainsl", "mains2" in the evaluation unit (14).
    [7]
    7. The method according to claim 6, characterized in that a difference signal "diffsns" is generated from the two measurement signals "mainsl", "mains2".
    [8]
    8. The method according to claim 7, characterized in that the difference signal "diffsns" is rectified.
    [9]
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    AT 16 610 U1 2020-02-15 Austrian patent office
    9. The method according to claim 8, characterized in that the rectified difference signal "diffsns" is compared with a reference value V ref , integrated or differentiated.
    [10]
    10. The method according to any one of claims 6 to 9, characterized in that the two measurement signals "mains2", "mains2" are digitized.
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    同族专利:
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    法律状态:
    2021-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20210228 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014225828.6A|DE102014225828A1|2014-12-15|2014-12-15|Operating device with detection means for the detection of phase cuts and / or sections in the supply voltage|
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