Abstract: The invention relates to an integrated digital control circuit for an operating device for lamps, comprising: an output for the pulsing of switches of a half-bridge circuit having an adjustable frequency, wherein a load circuit comprising the lighting devices may be connected to the half-bridge circuit, an input, to which a signal may be selectively supplied, said signal reflecting the current through the half-bridge or the current through the lamp. The input is internally branched into two analysis branches, the outputs of which are combined using a logic member, the output of which is connected in turn to a controller for adjusting the frequency of the half-bridge actuating signal.

Abstract: The invention relates to the operation of illuminants, in particular OLEDs. The invention relates to a method and a measuring instrument for determining the electrical properties of an OLED, the equivalent circuit diagram of which is composed of the parallel connection of an equivalent diode DE and an equivalent capacitance CE as well as an equivalent resistance RE that is connected in series to said parallel connection. The values for the equivalent resistance RE and the equivalent capacitance CE are determined at a different time than are the values for the equivalent diode DE.

Abstract: A driver circuit for programmable solid state light bulb assemblies including light emitting diodes is operable to provide a drive current to a light source of the light bulb assembly. The controller comprises a data storage unit storing a test scenario for calibration of the light bulb assembly; wherein the test scenario indicates a sequence of states of the light source; wherein a state of the light source is associated with settings of the driver circuit; a data input unit receiving a command signal via a modulated electricity supply signal; and a data processing unit retrieving the test scenario from the data storage unit; in dependence of the received command signal, generating a control signal for operating the light source in at least one state of the sequence of states of the test scenario; and to output the control signal.

Abstract: A driver circuit of solid state light bulb assemblies including light emitting diodes comprises a first power converter stage converting an input voltage into an intermediate voltage; a second power converter stage converting the intermediate voltage into a drive voltage for the light source; and a controller. The controller comprises a first control unit generating a first control signal for the first power converter stage; a second control unit generating a second control signal for the second power converter stage; and a state control unit determining a target state of the light source; wherein the first and second control units are receiving information indicative of the target state; and wherein the first and second control units are generating the first and second control signals based on the information indicative of the target state.

Abstract: Controllers for driver circuits of solid state light bulb assemblies including light emitting diodes comprise a power converter, a data storage unit operable to store data items relating to an operating behavior of the light bulb assembly, a temperature sensor operable to determine a chip temperature of the controller, and a data processing unit operable to receive the chip temperature, to retrieve the stored data items from the data storage unit, to generate a control signal in dependence upon the chip temperature and the retrieved data items, and to output the control signal to the power converter for operation of the light source.

Abstract: In the case of an electronic ballast (1) for operating a lamp (10) or an operating device for illumination means, having mains terminals (5) for connecting the ballast (1) or operating device to a current supply, output terminals (6) for connecting a lamp or light source to the ballast (1) or operating device and a control unit (4) for controlling and/or regulating an operating voltage delivered to the lamp (LA) or light source via the output terminals (6), external control information (Vprog) for programming or configuring the operating behavior of the operating device is delivered to the control unit (4) via a programming input, and stored in a memory (4a) associated with the control unit (4). In accordance with the invention, the programming input is formed by means of the mains terminals (5) and/or the output terminals (6) of the ballast (1) or of the operating device (2), which are connected internally with the control unit (4).

Abstract: A control circuit for an operating device for lighting devices, wherein a return signal is supplied to an input of the control circuit by the lighting device, and the control circuit has an error detection block that recognizes at least two different types of lighting device errors by means of the return signal applied at said input.

Abstract: A method is provided for operating at least one LED by a switched-mode regulator circuit to which a DC or a rectified AC voltage is supplied and which provides a supply voltage for at least one LED by a coil and a switch clocked by a control/regulation unit. When the switch is activated, power is temporarily stored in the coil and is discharged through a diode and through at least one LED when the switch is deactivated and the current flows through the LED through a first power storage element which is coupled to a second power storage element. The first power storage element just reaches its maximum capability of storing power due to the current flowing through the LED. A rising current is supplied to the second power storage element such that the time can be detected when the first power storage element recovers its capability of storing power.

Abstract: In order to control of dimming of solid state lighting devices (SSL) a driver circuit drives the SSL subject to an input voltage using a phase-cut dimmer. The driver circuit comprises a transistor operable in two modes, either alternating between on/off states or continuously controlling a current through the transistor. A power converter network provides a switched-mode power converter in conjunction with the transistor when operated in the first mode generating a drive voltage for the SSL. The control unit controls the transistor to selectively operate in one of the two modes; to control the transistor to determine that the input voltage exceeds an input voltage threshold; and to control a drive current through the SSL based on a measurement of a phase-cut angle thereby controlling an illumination level of the SSL device.

Abstract: In the case of an electronic ballast (1) for operating a lamp (10) or an operating device for illumination means, having mains terminals (5) for connecting the ballast (1) or operating device to a current supply, output terminals (6) for connecting a lamp or light source to the ballast (1) or operating device and a control unit (4) for controlling and/or regulating an operating voltage delivered to the lamp (LA) or light source via the output terminals (6), external control information (Vprog) for programming or configuring the operating behavior of the operating device is delivered to the control unit (4) via a programming input, and stored in a memory (4a) associated with the control unit (4). In accordance with the invention, the programming input is formed by means of the mains terminals (5) and/or the output terminals (6) of the ballast (1) or of the operating device (2), which are connected internally with the control unit (4).

Abstract: The present document relates to providing power for driving SSL devices. A power converter converts a varying input voltage to supply an output voltage to a SSL device in series with a current source. The power converter comprises one or more capacitors; a plurality of switches to couple the capacitors in a plurality of configurations. A control unit operates the power converter in a plurality of operational modes providing a corresponding plurality of different conversion ratios between the input/output voltages. The operational modes comprise a first phase and a second phase, during which the capacitors are differently arranged. The control unit controls the switches to alternate between the phases at a commutation cycle rate. The control unit sets the operational mode based on the varying input voltage.

Abstract: Method for allocating an operating address to a bus-enabled operating device for luminaires, including determining an absolute position or a relative position of the operating device by a position detection device, converting the position into an operating address, and storing the operating address for the operating device.

Abstract: The invention relates to a method for defining an operational parameter of an operational device for lighting means. According to the method, a voltage supply of the operational device is preferably switched on/off manually, an on/off switching is evaluated by the operational device as to whether at least one first predetermined criterion is fulfilled, for example, time constants or repetition rates, in this is the case, a continuous, preferably cyclic change of the predetermined operational parameters is switched on by the operational device, the changed operational parameter is returned to the user directly or indirectly, optically and/or acoustically, and the actual value of the changed operational parameters is maintained at a moment in time for a subsequent operation of the lighting means to which an additional on/off switching of the voltage supply fulfills at least one second criterion.

Abstract: The invention relates to an operating device for operating an LED light source. The device includes a first power converter stage (P1) supplied with mains voltage with a first reference potential (Z1), a second power converter stage (P2) with a second reference potential (Z2), which is connected to the secondary side of the first power converter stage (P1) via a first potential isolation unit (G1), a digital control unit (C1), which, via a second potential isolation unit (G2), controls the first power converter stage (P1) and the second power converter stage (P2) without potential isolation, at least one power switch (S2) which clocks the converter stage (P2), and an illuminant (L), which is supplied with energy by the second converter stage (P2).

Abstract: A method is provided for operating at least one LED by a switched-mode regulator circuit to which a DC or a rectified AC voltage is supplied and which provides a supply voltage for at least one LED by a coil and a switch clocked by a control/regulation unit. When the switch is activated, power is temporarily stored in the coil and is discharged through a diode and through at least one LED when the switch is deactivated and the current flows through the LED through a first power storage element which is coupled to a second power storage element. The first power storage element just reaches its maximum capability of storing power due to the current flowing through the LED. A rising current is supplied to the second power storage element such that the time can be detected when the first power storage element recovers its capability of storing power.

Abstract: The invention relates to the operation of illuminants, in particular OLEDs. The invention relates to a method and a measuring instrument for determining the electrical properties of an OLED, the equivalent circuit diagram of which is composed of the parallel connection of an equivalent diode DE and an equivalent capacitance CE as well as an equivalent resistance RE that is connected in series to said parallel connection. The values for the equivalent resistance RE and the equivalent capacitance CE are determined at a different time than are the values for the equivalent diode DE.

Abstract: The invention relates to an operating device for operating an LED light source. The device includes a first power converter stage (P1) supplied with mains voltage with a first reference potential (Z1), a second power converter stage (P2) with a second reference potential (Z2), which is connected to the secondary side of the first power converter stage (P1) via a first potential isolation unit (G1), a digital control unit (C1), which, via a second potential isolation unit (G2), controls the first power converter stage (P1) and the second power converter stage (P2) without potential isolation, at least one power switch (S2) which clocks the converter stage (P2), and an illuminant (L), which is supplied with energy by the second converter stage (P2).

Abstract: A control circuit for an operating device for lighting devices, wherein a return signal is supplied to an input of the control circuit by the lighting device, and the control circuit has an error detection block that recognizes at least two different types of lighting device errors by means of the return signal applied at said input.

Abstract: The invention relates to an integrated digital control circuit for an operating device for lamps, comprising: an output for the pulsing of switches of a half-bridge circuit having an adjustable frequency, wherein a load circuit comprising the lighting devices may be connected to the half-bridge circuit, an input, to which a signal may be selectively supplied, said signal reflecting the current through the half-bridge or the current through the lamp. The input is internally branched into two analysis branches, the outputs of which are combined using a logic member, the output of which is connected in turn to a controller for adjusting the frequency of the half-bridge actuating signal.

Abstract: In the case of an electronic ballast (1) for operating a lamp (10) or an operating device for illumination means, having mains terminals (5) for connecting the ballast (1) or operating device to a current supply, output terminals (6) for connecting a lamp or light source to the ballast (1) or operating device and a control unit (4) for controlling and/or regulating an operating voltage delivered to the lamp (LA) or light source via the output terminals (6), external control information (Vprog) for programming or configuring the operating behavior of the operating device is delivered to the control unit (4) via a programming input, and stored in a memory (4a) associated with the control unit (4). In accordance with the invention, the programming input is formed by means of the mains terminals (5) and/or the output terminals (6) of the ballast (1) or of the operating device (2), which are connected internally with the control unit (4).