DE102017126742A1 - Circuit arrangement with an operating circuit and method for programming or updating at least one operating characteristic of the operating circuit - Google Patents

Abstract

The invention relates to a circuit arrangement (10) having an operating circuit (12) which has a control device (25) and a programmable memory (37) connected thereto in communication, and a method for programming or updating an operating characteristic value which is stored in the memory (37) , A driver circuit (26) is configured to supply a lighting device (13) with electrical energy. A supply circuit (30) provides a DC operating voltage (UB) for the driver circuit (26) when the input side, an input voltage (UE) is applied, which may be a DC voltage (UG) or an AC voltage (UW). By means of an encoder (15), the input voltage (UE) selectively encoded coded between a DC voltage (UG) and an AC voltage (UW) and thereby a switching sequence (F) are generated. This switching sequence (F) can be evaluated in the operating circuit (12) and used to program or update an operating characteristic in the memory (37).

Description

The invention relates to a circuit arrangement with an operating circuit for operating a lighting arrangement and a method for programming or updating at least one operating parameter of the operating circuit.

Out DE 198 32 550 A1 A luminaire for an emergency lighting system and a method for programming the luminaire emerges. The emergency lighting system has a control unit, an emergency power source and multiple lights. The luminaire has a data processing unit which is controllable and programmable by means of the supply voltage applied to the luminaire. For programming, the supply voltage can be switched between two voltage values. In particular, one of the voltage values may be equal to zero, so that the supply voltage is alternately turned on and off.

A similar device or a similar method is also off DE 199 48 937 A1 known. There, installation devices, such as motion detectors or twilight switches can be programmed by sending a telegram to set the operating mode or the operating parameters. The telegram is generated by alternately turning on and off an input voltage to the installation device to generate a code and to code in the code.

If programming of a device connected to a line is carried out by alternately switching on and off the applied supply or input voltage, it is imperative to have an energy storage unit which will continue to supply the device as long as the input voltage is switched off. Alternate switching between DC values requires providing sufficiently large and distinguishable DC levels.

Starting from the known prior art, it can be regarded as an object of the present invention to ensure a secure programming or updating.

This object is achieved by a circuit arrangement with the features of claim 1 and a method having the features of claim 14.

The circuit arrangement has an operating circuit for operating a luminous means arrangement and, in one embodiment, may be formed by the operating circuit. The operation circuit has a controller, a memory communicatively coupled to the controller, a driver circuit having a driver input and a driver output, and a power circuit. The lamp arrangement is connected to the driver output. A supply output of the supply circuit is connected to the driver input. A supply input of the supply circuit is connected to an input line to which an input voltage is applied. The control device is set up to control the driver circuit in order to provide an electrical power for the lamp arrangement during operation at the driver output. The drive of the driver circuit is based on at least one operating characteristic, which is stored in the programmable memory. The memory is advantageously a non-volatile memory.

The at least one operating characteristic value may be a look-up table and / or a characteristic diagram and / or a characteristic curve and / or a function.

The supply circuit is configured to generate a supply signal indicating whether the input voltage applied to the input line is an AC voltage or a DC voltage. The supply signal is transmitted to the control device. By an alternating switching between a DC voltage and an AC voltage, a switching sequence is generated, which in turn generates a corresponding coded supply signal.

By alternate switching is meant that after a certain period of time during which a DC voltage is applied, an AC voltage is present for a further period of time, and vice versa. The switching between the DC voltage and the AC voltage can be carried out without gaps, but can also be such that first the currently applied voltage is switched off and then the other voltage is turned on, so that a time gap can arise during which there is no input voltage for a short time.

The control device is set up to evaluate the supply signal or its course or temporal change. The evaluation can determine whether the update has been requested by one or more operating characteristics or whether other external circumstances have led to a change in the supply signal. The supply signal may also change, for example, when a supply voltage or the input voltage at the input line fluctuates or breaks down, or when For example, when inserting an emergency operation is changed from an AC power supply to a DC power supply. The switching - for example by means of a coding device arranged for this purpose - is to be selected such that the control device makes it possible to distinguish the requirement for updating or programming at least one operating characteristic from other external circumstances or influencing factors.

The circuit arrangement can have an encoder which is set up for programming or updating the operating circuit. The encoder may be connected to the input line and preferably interposed between a voltage or current source and the input line. The coding device is set up to alternately apply a DC voltage and an AC voltage to the input line. The DC voltage has a DC value not equal to zero. The alternating voltage is, for example, a sinusoidal alternating voltage with in particular alternating polarity, for example an alternating voltage corresponding to a single-phase mains voltage of a voltage supply network. The alternating voltage can also be generated by inverting the supply voltage provided by the current or voltage source and can have a course corresponding to the alternating direction, for example a triangular, rectangular or sinusoidal profile. Preferably, the amount of a maximum value and / or the rms value of the alternating voltage is different from the amount of the DC voltage. Preferably, the frequency of the AC voltage is constant and is for example at least 50 Hz. It is also advantageous if the DC voltage always has the same magnitude and / or the same polarity. The DC voltage can be generated by rectifying the AC voltage of the power supply network.

By means of the coding device, both the operating characteristic value to be updated can be identified by appropriate coding, and data to be stored for this operating characteristic value can also be transmitted. The switching between a DC voltage and an AC voltage can be very easily and safely distinguished from other external influences, without the need for a complex coding is necessary. In addition, an electrical power is available at any time during programming via the input voltage, so that the operating circuit does not necessarily need an energy storage for buffering.

Operating circuits are often designed in any case such that they can be operated both with a DC voltage and with an AC voltage, in particular if they have an emergency operating functionality. This can be used according to the invention to perform programming or updating of at least one operating characteristic value via the coding device. A separate wired or wireless programming interface on the operating circuitry (such as DALI, NFC, or the like) may be eliminated, so that even simple operating circuitry may be programmed or updated. Manually operable adjustment means of the operating circuit, such as dip switches or the like can also be dispensed with. The at least one operating characteristic value is initially specified in the memory and stored there. Coded switching of the input voltage between a DC voltage and an AC voltage can cause one or more of the stored operating characteristic values to be updated in the memory and predefined for further operation.

It is preferred if the control device is set up to evaluate the course of the supply signal in order to determine which data for the at least one operating characteristic value to be updated is to be stored in the memory, if it was previously determined that at least one operating characteristic value should be updated. Consequently, not only an update can be requested by the coding device, but also updated data for the respective operating characteristic value can be transmitted by a coded switching of the input voltage between the DC voltage and the AC voltage. The controller can then store the new data in the memory.

It is also advantageous if the coding device is set up to alternately apply the DC voltage and the AC voltage to the input line such that a switching sequence (identification switching sequence) identifying the operating characteristic value to be updated as well as a further switching sequence describing the data to be updated of the operating characteristic value to be updated (data switching sequence ) is produced. If several operating characteristic values are to be updated, a plurality of identification switching sequences as well as several data switching sequences can be generated correspondingly. For example, a corresponding data switching sequence can subsequently be transmitted for each identification switching sequence. It is also possible to initially transmit a plurality of identification switching sequences and preferably subsequently a plurality of respectively associated data switching sequences in the corresponding sequence or another predetermined assignment.

In a further embodiment, it is also possible to generate a single switching sequence during the updating or programming, and to transmit the data to be stored of all operating characteristic values. In this case, the data to be stored can be transmitted for a plurality of operating characteristic values, for example in a predetermined sequence, and thereby assigned to the corresponding operating characteristic values. Switching sequences that identify the individual operating characteristics (identification switching sequences) can then be omitted. With a smaller number of operating characteristics, this type of coding or transmission may be advantageous.

In an exemplary embodiment, the operating circuit may optionally have an energy store in order to maintain an emergency operation of the operating circuit and / or of the lighting arrangement at least for a short time in the event of a failure of the input voltage on the input line. The energy store may be connected, for example via an energy storage control circuit to the supply output or the driver input. About the energy storage control circuit can either charge or maintain the charge in the energy storage done or it can be provided in case of failure of the input voltage electrical power to the driver circuit.

At least one operating characteristic value stored in the memory can predefine an electrical power delivered by the driver circuit during emergency operation and / or a luminous power of the lamp arrangement during emergency operation.

It is also advantageous if at least one operating characteristic value represents a temperature characteristic value. The at least one temperature characteristic value predetermines the electrical power output by the driver circuit to the lamp arrangement and / or the luminous power of the lamp arrangement as a function of an operating temperature of the operating circuit. Thereby, e.g. exceeding a maximum temperature can be avoided by reducing the electrical power and associated heat generation.

Preferably, the at least one temperature characteristic value is selected such that the electrical power output to the lamp arrangement and / or the luminous power of the lamp arrangement is reduced continuously or stepwise with increasing operating temperature. For example, the output electrical power can be reduced when a temperature threshold is exceeded.

In this case, the control device can be configured in such a way that the driver circuit is activated in order to deliver the electrical power corresponding to the temperature characteristic to the lighting device arrangement and / or to set the predetermined lighting power of the lighting device arrangement.

To determine the operating temperature of the operating circuit may be present in one embodiment, a temperature sensor, which is communicatively connected to the control device. Alternatively, the operating temperature can also be determined by at least one other characteristic variable. For example, based on the operating time and the electrical power applied to the driver input and / or the electrical power provided at the driver output, an actual operating temperature of the operating circuit can be determined or estimated on the basis of an assignment (look-up table and / or characteristic field and / or characteristic and / or function).

By means of the above-described circuit arrangement, an operating characteristic value to be updated can be transmitted very simply and safely and stored in the memory. It should be noted that during the update, preferably only data of an existing operating characteristic value is changed and thereby updated. Additionally or alternatively, it is also possible to store a previously not existing operating characteristic in the memory. For example, an additional temperature threshold value with an associated electrical power output or luminous power could be stored as an additional operating characteristic value in the memory.

• 1 ein Blockschaltbild eines Ausführungsbeispiels einer Schaltungsanordnung,
• 2 ein Blockschaltbild eines Ausführungsbeispiels eines Betriebsschaltkreises für die Schaltungsanordnung aus 1,
• 3 ein Blockschaltbild eines Ausführungsbeispiels einer Codiereinrichtung,
• 4 eine schematische, lediglich exemplarische Darstellung einer Eingangsspannung durch Umschalten zwischen einer Gleichspannung und einer Wechselspannung zur Programmierung des Betriebsschaltkreises der Schaltungsanordnung und
• 5 und 6 jeweils eine schematisierte Veranschaulichung einer oder mehrerer Umschaltfolgen für das Programmieren des Betriebsschaltkreises.

Advantageous embodiments of the invention will become apparent from the dependent claims, the description and the drawings. Hereinafter, preferred embodiments of the invention will be explained in detail with reference to the accompanying drawings. Show it:

• 1 a block diagram of an embodiment of a circuit arrangement,
• 2 a block diagram of an embodiment of an operating circuit for the circuit arrangement 1 .
• 3 a block diagram of an embodiment of an encoder,
• 4 a schematic, merely exemplary representation of an input voltage by switching between a DC voltage and an AC voltage for programming the operating circuit of the circuit and
• 5 and 6 each a schematic illustration of one or more switching sequences for the programming of the operating circuit.

In 1 is an embodiment of a circuit arrangement 10 shown. The circuit arrangement 10 is input side to a current or voltage source 11 connected directly or indirectly a supply voltage UV provides. The supply voltage can be a DC or AC voltage. At the power or voltage source 11 For example, it may be a phase of the AC power supply network 11a and / or an emergency or emergency power source 11b act.

The circuit arrangement 10 has an operating circuit 12 on. To the operating circuit 12 is a lighting arrangement 13 connected. The operating circuit 12 is adapted to the lighting arrangement 13 to operate. The lighting arrangement 13 has at least one light-emitting means, in particular a semiconductor light-emitting means, such as a light-emitting diode or an OLED. If several lamps are present, they can be connected in series and / or parallel to one another.

The input side is the operating circuit 12 via an input line 14 to the power or voltage source 11 connected. At the entrance pipe 14 is an input voltage UE on. The input line has for this purpose two separate conductors whose potential difference of the input voltage UE equivalent. The operating circuit 12 can be designed as an independent operating device and, for example, together with the lamp arrangement 13 be installed in a luminaire.

By means of an encoder 15 the circuit arrangement 10 which is separate from the operating circuit 12 is formed, the input voltage UE be modified. The coding device 15 is designed according to the example, alternately a DC voltage UG and an AC voltage UW as input voltage UE to the operating circuit 12 to apply. Regardless of whether by means of the current or voltage source 11 an AC voltage or a DC voltage is provided, the encoder 15 rectify the supply voltage applied on the input side and / or invert or forward unchanged in order to connect to the input line 14 either a DC voltage UG or an AC voltage UW provide. This allows a coded switching sequence F the input voltage UE to the operating circuit 12 to program it with one or more operating characteristics and / or to update one or more operating characteristics. In this case, no signals are modulated onto a continuously applied voltage (carrier signal), but the input voltage UE is in a predetermined switching order between the DC voltage UG and the AC voltage UW switched.

The at least one operating characteristic is determined by the operating circuit 12 used the bulb assembly 13 to operate, in particular depending on at least one state and / or environmental parameters. During operation of the operating circuit 12 is the coding device 15 not mandatory. It can be used for initial programming and / or for updating the at least one operating characteristic value. An encoder 15 can therefore be used to program and / or update multiple operating circuits 12 be used simultaneously or sequentially. For example, for programming and / or updating multiple operating circuits 12 connected in parallel with a common coding device 15 be connected.

As it is in the 1 and 2 is schematically illustrated, the encoder 15 by means of a coding control 16 driven. About the coding control 16 becomes the encoder 15 operated such that a rectification of the supply voltage UV or an alternating direction of the supply voltage UV takes place or the supply voltage UV the current or voltage source 11 unchanged as input voltage UE to the input line 14 is created. The coding control controls this 16 the coding device 15 by means of a coding control signal C on.

An embodiment of the coding device 15 is in 3 illustrated. The coding device 15 has a rectifier in this embodiment 17 , an inverter 18 and a controllable switching device 19 on. The rectifier 17 and the inverter 18 are output side respectively with the output line 14 electrically connected. The switching device 19 is determined by means of the coding control signal C controlled and thereby switched between two or optionally three switching positions. In a first switching position I becomes the supply voltage UV to the rectifier 17 created, in a second switching position II becomes the supply voltage UV to the inverter 18 created and in a third position III become the rectifier 17 and the inverter 18 bridged and the supply voltage UV becomes instantaneous as input voltage UE to the output line 14 created. In the first switching position I represents the rectifier 17 as input voltage UE a DC voltage UG ready. In the second switching position II represents the inverter 18 as input voltage UE an alternating voltage UW ready. In the third switch position III becomes the supply voltage UV as input voltage UE output.

Will the updating or programming of the operating circuit 12 not needed, the switching device can 19 in the third switching position III are located. This will cause the supply voltage UV directly as input voltage UE to the input line 14 created. Electrical losses are largely avoided. The coding device 15 can also be removed after updating or programming, and the power or voltage source is directly connected to the input line 14 get connected ( 1 ).

To update an operating characteristic value or for coding, the switching device 19 via the coding control signal C be switched, for example, alternately between the first switching position I and the third switch position III or, for example, alternately between the second switching position II and the third switch position III , Whether for coding the first switching position I or the second switching position II together with the third switch position III used depends on whether it is the supply voltage UV is a DC voltage or an AC voltage. The programming or updating of operating characteristics will be discussed in more detail later.

When programming or updating the at least one operating characteristic value, only one DC voltage is ever used as the supply voltage UV used, can on the rectifier 17 be waived. Similarly, the inverter can 18 be omitted when programming or updating the at least one operating characteristic always only an AC voltage as the supply voltage UV is used.

2 illustrates an embodiment for the operating circuit 12 , The operating circuit 12 has one by means of a control device 25 controllable driver circuit 26 on. The driver circuit 26 has a driver output 27 to which the lighting arrangement 13 connected. To a driver input 28 the driver circuit 26 is a supply output 29 a supply circuit 30 connected. A supply entrance 31 of the supply circuit 30 is to the input line 14 connected. At its supply output 29 represents the supply circuit 30 a DC operating voltage UB for operating the operator circuit 26 ready when at his supply entrance 29 the input voltage UE is applied. As it is in the 1 and 2 is shown is the operating circuit 12 set up in the preferred embodiment, in case of failure of the AC power supply network 11a in an emergency operation with an emergency or emergency power source 11b to be operated. The supply circuit 30 can do this with both a DC or AC voltage input voltage UE operate.

The supply circuit 30 is set to detect if it is the input voltage UE is a DC or AC voltage and provides a corresponding supply signal V ready to go to the controller 25 is transmitted. Depending on the type and level of input voltage UE is the supply circuit 30 set up by a converter circuit, such as a rectifier circuit, the DC operating voltage UB provide. Between the output terminals of the supply output 29 can be a capacitor 32 be switched to even and stabilize the DC operating voltage UB.

The control device 25 of the operating circuit 12 is with a memory 37 communication connected. At the store 37 is, for example, a programmable, non-volatile memory. In the store 37 At least one operating characteristic value is stored, which is the one at the driver output 27 provided electrical power and / or the luminous power of the lamp assembly 13 depending on at least one state parameter of the operating circuit 12 and / or depending on an environmental condition. The at least one characteristic value can be defined by a characteristic curve and / or a characteristic field and / or a look-up table.

At the in 2 illustrated embodiment of the operating circuit 12 is also a temperature sensor 38 present, the temperature of the operating circuit 12 and according to the driver circuit 26 measures and a temperature signal T to the controller 25 transmitted, which describes the current operating temperature. Instead of using a temperature sensor 38 The operating temperature could also be based on the operating time and / or the driver input 28 provided electrical power and / or the driver output 27 provided electric power by means of a function, a characteristic, a map, a look-up table or the like in the control device 25 calculated or estimated.

Optionally, the operating circuit 12 an electrical energy storage 39 at the driver input 28 in case of failure of the supply voltage UV or the input voltage UE the DC operating voltage UB at least for a certain period of time. The energy storage 39 is about one Energy storage control circuit 40 with the driver input 28 electrically connected. The energy storage control circuit 40 is for example by an energy storage control signal e the control device 25 driven. The energy storage control circuit 40 can by the energy storage control signal e be switched to an operating state in which - for example, in case of waste or failure of the supply voltage UV or the input voltage UE - Energy from the energy storage 39 for operation of the control device 25 and / or driver circuit 26 provided. The energy storage control circuit 40 is also set up to store energy 39 to load when in normal operation, the supply voltage UV or the input voltage UE is applied. In another embodiment, the drive of the energy storage control circuit 40 by the energy storage control signal e omitted and the energy storage control circuit 40 can be set up to independently switch to the required operating mode.

In the embodiment described here is in the memory 37 at least one operating characteristic value predetermined, the at the driver output 27 Provided electrical power for the lamp assembly 13 during an emergency operation, if the input voltage fails UE describes. For example, during the emergency operation by the lamp arrangement 13 absorbed electric power and thus the luminous power of the lamp assembly 13 be reduced to ensure a sufficiently long operating time for emergency operation, as the emergency or emergency power source 11b and / or the energy storage 39 usually a battery with limited electrical energy supply is.

In the store 37 By way of example, at least one temperature characteristic or a temperature characteristic field or a look-up table is also stored which corresponds to that at the driver output 27 Provides provided electrical power depending on the operating temperature. For example, if a temperature threshold value is exceeded, that at the driver output 27 provided electrical power can be reduced in order to avoid a further increase in temperature of the operating temperature or to reduce the rate of temperature rise. There may also be a plurality of temperature thresholds, so that two, three or more temperature ranges are defined, for example, each with a value of a given electrical power at the driver output 27 are linked. For example, the current requested or delivered at the driver output electrical power when a first temperature threshold is exceeded by a first percentage, when a further temperature threshold is exceeded by a second percentage, etc. gradually reduced. The number of temperature thresholds and the respective reduction in the output of the electrical power become dependent on the actual design of the operating circuit 12 are defined and can be determined empirically by simulation or by experiments.

The at least one operating characteristic is stored in the memory 37 in the manufacture of the operating circuit 12 and / or initialized at initial start-up. The operating circuit 12 is formed for example by a control gear that in a lamp together with the bulb assembly 13 is installed. Many such operating circuits 12 have no interface for programming the at least one characteristic value. To be used with a built-in a lamp operating circuit 12 Later, at least one operating characteristic value will be updated, this is done, for example, with the aid of the coding device 15 ,

In 4 is schematically exemplified as the input voltage UE by the coding control signal C by switching the switching device 19 between a DC voltage UG and an AC voltage UW can be switched to a switching sequence F to build. The AC voltage UW For example, it changes polarity after each half cycle. The DC voltage UG has a DC value other than zero. The DC voltage value of the DC voltage UG is constant and can be positive or negative. At the AC voltage UW it is, for example, a sinusoidal AC voltage, that of the supply voltage UV or the mains voltage can correspond if the current or voltage source 11 is formed by the supply network.

Preferably, the coding controller controls 16 by the coding control signal C the coding device 15 such that the time duration between two switching operations an integer multiple of half the period of the AC voltage UW or an integral multiple of the period of the AC voltage UW equivalent. In 4 the switching times are exemplarily chosen so that the AC voltage UW each having a zero crossing. The switching times could also be chosen differently. Different from what is shown can be between switching off the DC voltage UG or the AC voltage UW and then switching on the AC voltage UW or DC voltage UG also a short time delay (time gap) to be present. Optionally, it is also possible to use this time gap (eg its duration) in the coding.

By a coded switching of the input voltage UE between the alternating voltage UW and the DC voltage UG becomes a corresponding coded supply signal V formed and to the controller 25 transmitted. For example, the supply signal V have a first value when it is at the input voltage UE around the DC voltage UG and have a second value when it comes to the input voltage UE around the AC voltage UW is. Optionally, the supply signal V have a third value when the input voltage UE is equal to zero or below a Mindestspannungsbetrages for a minimum period of time, for example, in the case of failure of the supply voltage UV , This can also be done via the supply signal V a failure of the supply voltage UV from the concern of a DC or AC voltage as an input voltage UE be differentiated. In this case, the control device 25 For example, start the emergency operation, for example by means of the energy storage control signal e ,

In one embodiment of the supply circuit 30 this can be set to voltage zero crossings of the input voltage UE to recognize. It is assumed that an input voltage UE is applied. If no zero voltage transients are detected within a predefined period of time, the supply circuit will generate 30 a supply signal V indicating that a DC voltage is present. On the other hand, if several voltage zero crossings are detected, the supply circuit generates 30 a supply signal V indicating that an AC voltage is present.

The type of coding of the input voltage UE can be varied. By alternately switching between the DC voltage UG and the AC voltage UW becomes a switching sequence F formed, in turn, the supply signal V results. Is the supply circuit 30 equipped to detect zero voltage crossings in order to distinguish between a DC voltage and an AC voltage, it is preferred that the DC voltage UG and the AC voltage UW the switching sequence F in each case during several and preferably during at least 3 to 6 mains half-waves is applied in order to achieve a reliable detection.

In 5 a first example illustrates how such a switching sequence F to update a characteristic value in the memory 37 can be used. The input voltage UE is first used to generate an identification switch sequence FI which indicates which of the characteristic values in the memory 37 to be updated. Following this is a data switching sequence FD which contains the data which is stored in memory instead of the previous data of the parameter to be updated 37 should be stored. Finally, a test switch sequence FP be transmitted, based on the control device 25 can determine if the previously transmitted consequences FI or. FD correctly received or evaluated. This in 5 illustrated method is mainly suitable when only individual characteristics and not all characteristics are to be updated.

If the number of stored characteristic values is small, it is also always possible to update all the data of all characteristic values. An example of this is in 6 illustrated. There are successively the Datenumschaltfolgen FD1 . FD2 . FD3 , ..., FDn for all operating characteristics in a given order, where n represents the number of operating characteristics. It is in the control device 25 It is known in what order the data switching sequences FD be transferred and the previously stored data can be replaced assigned to the correct characteristics by the updated, transmitted data. Optionally, a test switch sequence can also be concluded here FP be transmitted to the accuracy of the previously transmitted consequences in the control device 25 to be able to check.

It is also advantageous if in addition also the polarity of the DC voltage UG is used for coding. The supply circuit 30 is set up dependent on the polarity of the DC voltage UG in each case a different supply signal V to generate and transmit. By means of a change in the polarity, a data signal could be transmitted by means of a suitable coding, without the actual polarity being relevant.

Should be in an evaluation of Prüfumschaltfolge FP result that the previously transmitted data was not received correctly and / or was not correctly evaluated, the received data for the operating characteristic (s) to be updated can be discarded and the previous stored data can be retained.

Optionally, the control device 25 if a faulty programming or update is detected, the operating circuit 12 in an operating state indicating that the programming or updating was faulty, for example, by operating the driver circuit 26 such that the lighting arrangement 13 flashes. Alternatively or additionally, it is possible to correctly and completely program or update one or more characteristic values by means of a corresponding operating state of the device Operating circuit 12 indicate, for example by a multiple switching on and off of the lamp assembly 13 , If both a faulty update, as well as a correct update to be displayed, the drive of the lamp assembly 13 distinguishable chosen, for example by a slow flashing of the lamp assembly 13 for a first period of time if the update was successful and a faster blink for a second time period if the update was unsuccessful. The second time duration may be greater than the first time duration. The possibilities of variation for a feedback of the success or failure of an update by driving the lamp assembly 13 are diverse and can be chosen any other way.

The invention relates to a circuit arrangement 10 with a power circuit 12 that a control device 25 and a programmable memory communicatively connected thereto 37 and a method for programming or updating an operating characteristic stored in memory 37 is stored. A driver circuit 26 is adapted to a lighting arrangement 13 to supply with electrical energy. A supply circuit 30 provides a DC operating voltage UB for the driver circuit 26 ready when input side an input voltage UE is applied, which is a DC voltage UG or an AC voltage UW can act. By means of an encoder 15 can the input voltage UE selectively coded between a DC voltage UG and an AC voltage UW switched over and thereby a switching sequence F be generated. This switching sequence F can in the operating circuit 12 evaluated and for programming or updating an operating characteristic in the memory 37 be used.

LIST OF REFERENCE NUMBERS

10

circuitry

11

Current or voltage source

11a

AC voltage supply network

11b

Emergency or emergency power source

12

Operating circuit

13

Lamp positioning

14

input line

15

coding

16

encoder control

17

rectifier

18

inverter

19

switching device

25

control device

26

driver circuit

27

driver output

28

driver input

29

power output

30

Supply circuit

31

supply input

32

capacitor

37

Storage

38

temperature sensor

39

energy storage

40

Energy storage control circuit

I

first switching position

II

second switch position

III

third shift position

C

coding control

e

Energy storage control signal

F

Switching Sequence

FD

Datenumschaltfolge

FI

Identifikationsumschaltfolge

FP

Prüfumschaltfolge

UE

input voltage

UG

DC

UV

supply voltage

UW

AC

V

supply signal

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19832550 A1 [0002]
• DE 19948937 A1 [0003]

Claims (14)

Circuit arrangement (10) comprising an operating circuit (12) having a control device (25) and a driver circuit (26) having a driver input (28) to which a supply circuit (30) is connected and which has a driver output (27) to which a lighting arrangement ( 13) is connected or connectable, wherein the control device (25) is adapted to drive the driver circuit (26) to provide an electrical power to the lamp assembly (13) at the driver output (27), the controller (25) being programmable Memory (37) is communicatively connected, in which at least one operating characteristic value for the operation of the driver circuit (26) is stored, wherein the supply circuit (30) has a supply input (31) connected to an input line (14) and a supply output (29) connected to the driver input (28), and wherein the supply circuit (30) is adapted to supply a supply signal (V) generate and transmit to the control device (25) that indicates whether an AC voltage (UW) or a DC voltage (UG) is applied to the input line (14), and wherein the control device (25) is adapted to evaluate the course of the supply signal (V) to determine whether at least one of the at least one operating characteristic value is to be programmed or updated. Circuit arrangement according to Claim 1 , characterized in that the control device (25) is adapted to evaluate the supply signal (V) to determine which data for the at least one to be programmed or updated operating characteristic in the memory (37) are stored, if it was determined that at least an operating characteristic value is to be updated. Circuit arrangement according to Claim 1 or 2 , characterized in that an encoder (15) is provided which is adapted to the programming or updating of at least one operating characteristic alternately a DC voltage (UG) and an AC voltage (UW) to be applied to the input line (14). Circuit arrangement according to Claim 3 , characterized in that the coding device (15) is adapted to alternately apply the DC voltage (UG) and the AC voltage (UW) to the input line (14) in such a way that an identification switching sequence (FI) identifies the at least one operating characteristic value to be programmed or updated ) and a data switching sequence (FD) describing the data to be stored of the at least one operating characteristic value to be programmed or updated is generated. Circuit arrangement according to Claim 3 or 4 , characterized in that the coding device (15) is adapted to apply the DC voltage (UG) and the AC voltage (UW) alternately to the input line (14) such that a switching sequence (FD1, FD2, FD3, ..., FDn ) indicating the data to be stored of all the operating characteristics of the at least one operating characteristic. Circuit arrangement according to one of Claims 3 to 5 , characterized in that the coding device (15) and the operating circuit (12) are designed as separate devices. Circuit arrangement according to one of the preceding claims, characterized in that the operating circuit (12) has an energy store (39) in order in case of failure of an input voltage (UE) on the input line (14) an operation of the control device (25) and / or the driver circuit (26) and / or the illuminant assembly (13) maintain. Circuit arrangement according to one of the preceding claims, characterized in that at least one operating characteristic value predetermines the electrical power output to the illuminant arrangement (13) during an emergency operation and / or the luminous power of the illuminant arrangement (13) during emergency operation. Circuit arrangement according to Claim 8 , characterized in that an emergency or emergency power source (11b) connectable to the input line (14) is arranged to provide a DC voltage or a DC current to supply the operating circuit (12) during emergency operation. Circuit arrangement according to one of the preceding claims, characterized in that at least one operating characteristic value represents a temperature characteristic that specifies the output to the lamp assembly (13) electrical power and / or the luminous power of the lamp assembly (13) depending on an operating temperature of the operating circuit (12). Circuit arrangement according to Claim 10 , characterized in that the at least one temperature characteristic specifies that the light output to the lamp arrangement (13) electrical power and / or the luminous power of Lamp assembly (13) is reduced continuously or stepwise with increasing operating temperature. Circuit arrangement according to Claim 10 or 11 , characterized in that the control device (25) is adapted to drive the driver circuit (26) of the operating circuit (12) such that the output to the lamp assembly (13) electrical power and / or the luminous power of the lamp assembly (13) the at least corresponds to a temperature characteristic. Circuit arrangement according to one of Claims 10 to 12 characterized in that a temperature sensor (38) in communication with the control device (25) is provided for detecting the operating temperature of the operating circuit (12). A method for programming or updating at least one operating characteristic value of an operating circuit (12) to be updated, wherein the operating circuit (12) comprises a control device (25), a memory (37) communicating with the control device, in which at least one operating characteristic value for the operation of the operating circuit (12 ), a driver circuit (26) having a driver input (28) and a driver output (27) and a supply circuit (30) at whose supply input (31) an input voltage (UE) is applied and their supply output (29) to the driver input (28) is connected, wherein a lamp arrangement (13) is connected to the driver output (27), comprising the following steps: - Repeated switching of an input voltage (UE) applied to the supply circuit (30) between a DC voltage (UG) and an AC voltage (UW), Generating a supply signal (V) by the supply circuit (30) indicating whether the current input voltage (UE) is a DC voltage (UG) or an AC voltage (UW) and transmitting the supply signal (V) to the control device (25), - Evaluating the course of the supply signal (V) by the control means (25) to determine whether at least one of the at least one operating characteristic is to be programmed or updated.

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