公开(公告)号：US09560702B2

公开(公告)日：2017-01-31

申请号：US15029715

申请日：2014-09-24

Applicant: OSRAM GmbH

Inventor： Felix Franck ,  Markus Heckmann

IPC: H01J7/24 ,  H05B33/08

CPC classification number: H05B33/0812 ,  H05B33/0827 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/0854 ,  H05B33/0884 ,  H05B33/089

Abstract: A light source module may include at least one LED cascade with a plurality of LEDs, a supply line, wherein at the input side the LED cascade is coupled thereto, and a ground line. The light source module further includes a communications line for coupling to a control device for the current to be provided by the current source, a thermal derating unit coupled between a first voltage source and the communications line and including a temperature-sensitive element, wherein the thermal derating unit applies a temperature dependent current component determined depending on the temperature-sensitive element, to the communications line, at least one current measurement resistor connected in series between the LED cascade and the reference potential, wherein the conductance of the current measurement resistor is proportional to the current requirement of the LED cascade, and at least one coupling resistor coupled between the coupling point and the communications line.

Abstract translation: 光源模块可以包括具有多个LED的至少一个LED级联，供电线，其中LED级联耦合到输入侧，以及接地线。 光源模块还包括用于耦合到用于由电流源提供的电流的控制装置的通信线路，耦合在第一电压源和通信线路之间并包括温度敏感元件的热降额单元，其中， 热降额单元将根据温度敏感元件确定的与温度相关的电流分量应用于通信线路，串联连接在LED级联和参考电位之间的至少一个电流测量电阻器，其中电流测量电阻器的电导率为 与LED级联的电流要求成比例，以及耦合在耦合点和通信线路之间的至少一个耦合电阻器。

公开(公告)号：US20160330807A1

公开(公告)日：2016-11-10

申请号：US15111190

申请日：2014-11-05

Applicant: OSRAM GMBH

Inventor： Markus Heckmann ,  Joachim Mühlschlegel ,  Thomas Pollischansky ,  Harald Schmitt

IPC: H05B33/08 ,  H02M1/42 ,  H02M3/335

CPC classification number: H05B33/0815 ,  H02M1/42 ,  H02M3/33546 ,  H05B33/0827 ,  H05B33/0842 ,  Y02B20/348

Abstract: A circuit arrangement for operating light sources includes input terminals for a power supply system voltage, a first rectifying circuit, a boost converter having output terminals, a half-bridge arrangement having two switches, which is connected to the output terminals of the boost converter, an inductance, the first terminal of which is coupled to the centre point of the half-bridge, and a second rectifying circuit, the first input terminal of which is coupled to the second terminal of the inductance and the second input of which is coupled to one of the output terminals of the boost converter. The output terminals of the second rectifying circuit are coupled to the inputs of a current-compensated inductor. At least one light source is connected to the output terminals of the current-compensated inductor, and the output terminals of the current-compensated inductor are coupled to an output terminal of the boost converter via filter capacitors.

Abstract translation: 用于操作光源的电路装置包括用于电源系统电压的输入端子，第一整流电路，具有输出端子的升压转换器，具有两个开关的半桥装置，其连接到升压转换器的输出端子， 电感，其第一端子耦合到半桥的中心点;第二整流电路，其第一输入端耦合到电感的第二端子，其第二输入耦合到 升压转换器的输出端之一。 第二整流电路的输出端子耦合到电流补偿电感器的输入端。 至少一个光源连接到电流补偿电感器的输出端子，电流补偿电感器的输出端子通过滤波电容器耦合到升压转换器的输出端子。

公开(公告)号：US10945318B2

公开(公告)日：2021-03-09

申请号：US16472212

申请日：2017-12-13

Applicant: OSRAM GmbH

Inventor： Markus Heckmann

IPC: H05B45/37 ,  H02M3/158

Abstract: A circuit assembly for operating a load may include an input for inputting an input voltage and/or current. The circuit assembly may further include an output for outputting an output voltage and/or current. The circuit assembly may further include an at least partially digital switching regulator with a feedback loop. A loop gain of the feedback loop may be frequency-dependent where the frequency ranges from 3 Hz to 20 Hz.

公开(公告)号：US09686827B2

公开(公告)日：2017-06-20

申请号：US15111190

申请日：2014-11-05

Applicant: OSRAM GmbH

Inventor： Markus Heckmann ,  Joachim Mühlschlegel ,  Thomas Pollischansky ,  Harald Schmitt

IPC: H05B33/08 ,  H02M1/42 ,  H02M3/335

CPC classification number: H05B33/0815 ,  H02M1/42 ,  H02M3/33546 ,  H05B33/0827 ,  H05B33/0842 ,  Y02B20/348

Abstract: A circuit arrangement for operating light sources includes input terminals for a power supply system voltage, a first rectifying circuit, a boost converter having output terminals, a half-bridge arrangement having two switches, which is connected to the output terminals of the boost converter, an inductance, the first terminal of which is coupled to the centre point of the half-bridge, and a second rectifying circuit, the first input terminal of which is coupled to the second terminal of the inductance and the second input of which is coupled to one of the output terminals of the boost converter. The output terminals of the second rectifying circuit are coupled to the inputs of a current-compensated inductor. At least one light source is connected to the output terminals of the current-compensated inductor, and the output terminals of the current-compensated inductor are coupled to an output terminal of the boost converter via filter capacitors.

公开(公告)号：US20190357327A1

公开(公告)日：2019-11-21

申请号：US16472212

申请日：2017-12-13

Applicant: OSRAM GmbH

Inventor： Markus Heckmann

IPC: H05B33/08 ,  H02M3/158

Abstract: A circuit assembly for operating a load may include an input for inputting an input voltage and/or current. The circuit assembly may further include an output for outputting an output voltage and/or current. The circuit assembly may further include an at least partially digital switching regulator with a feedback loop. A loop gain of the feedback loop may be frequency-dependent where the frequency ranges from 3 Hz to 20 Hz.

公开(公告)号：US20190074772A1

公开(公告)日：2019-03-07

申请号：US16122934

申请日：2018-09-06

Applicant: OSRAM GmbH

Inventor： Thomas Pollischansky ,  Markus Heckmann

IPC: H02M3/158 ,  H05B33/08

Abstract: In various embodiments, a switched-mode power supply is provided. The switched-mode power supply includes at least two output stages. Each output stage has a converter. A frequency of at least one of the output stages is modulated by way of a modulation unit configured to provide a modulation signal that is combined with a switching signal for driving a switching element of the converter of the at least one output stage.

公开(公告)号：US20180184496A1

公开(公告)日：2018-06-28

申请号：US15846278

申请日：2017-12-19

Applicant: OSRAM GmbH

Inventor： Axel Pilz ,  Markus Heckmann

IPC: H05B33/08 ,  H05B37/02 ,  G01V8/10

CPC classification number: H05B33/0854 ,  G01V8/10 ,  H05B33/0869 ,  H05B33/0872 ,  H05B37/02 ,  H05B37/0218

Abstract: In various embodiments, a circuit arrangement for operating light sources is provided. The circuit arrangement includes an input for inputting an input voltage, an output for outputting an output current, a first interface for controlling the circuit arrangement, and a second interface. The circuit arrangement is configured to set two different operating modes: in a first operating mode the circuit arrangement is configured to be controlled via the first interface and to receive information concerning the output current via the second interface and to correspondingly set the output current at the output, and in a second operating mode the circuit arrangement is configured to be controlled and to receive the information about the output current to be set at the output via the first interface, and to receive information from a sensor via the second interface and to process said information.

公开(公告)号：US09521714B2

公开(公告)日：2016-12-13

申请号：US15029715

申请日：2014-09-24

Applicant: OSRAM GmbH

Inventor： Felix Franck ,  Markus Heckmann

IPC: H01J7/24 ,  H05B33/08

Abstract: A light source module may include at least one LED cascade with a plurality of LEDs, a supply line, wherein at the input side the LED cascade is coupled thereto, and a ground line. The light source module further includes a communications line for coupling to a control device for the current to be provided by the current source, a thermal derating unit coupled between a first voltage source and the communications line and including a temperature-sensitive element, wherein the thermal derating unit applies a temperature dependent current component determined depending on the temperature-sensitive element, to the communications line, at least one current measurement resistor connected in series between the LED cascade and the reference potential, wherein the conductance of the current measurement resistor is proportional to the current requirement of the LED cascade, and at least one coupling resistor coupled between the coupling point and the communications line.

公开(公告)号：US20160270167A1

公开(公告)日：2016-09-15

申请号：US15029715

申请日：2014-09-24

Applicant: OSRAM GmbH

Inventor： Felix Franck ,  Markus Heckmann

IPC: H05B33/08

CPC classification number: H05B33/0812 ,  H05B33/0827 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/0854 ,  H05B33/0884 ,  H05B33/089

Abstract: A light source module may include at least one LED cascade with a plurality of LEDs, a supply line, wherein at the input side the LED cascade is coupled thereto, and a ground line. The light source module further includes a communications line for coupling to a control device for the current to be provided by the current source, a thermal derating unit coupled between a first voltage source and the communications line and including a temperature-sensitive element, wherein the thermal derating unit applies a temperature dependent current component determined depending on the temperature-sensitive element, to the communications line, at least one current measurement resistor connected in series between the LED cascade and the reference potential, wherein the conductance of the current measurement resistor is proportional to the current requirement of the LED cascade, and at least one coupling resistor coupled between the coupling point and the communications line.

Abstract translation: 光源模块可以包括具有多个LED的至少一个LED级联，供电线，其中LED级联耦合到输入侧，以及接地线。 光源模块还包括用于耦合到用于由电流源提供的电流的控制装置的通信线路，耦合在第一电压源和通信线路之间并包括温度敏感元件的热降额单元，其中， 热降额单元将根据温度敏感元件确定的与温度相关的电流分量应用于通信线路，串联连接在LED级联和参考电位之间的至少一个电流测量电阻器，其中电流测量电阻器的电导率为 与LED级联的电流要求成比例，以及耦合在耦合点和通信线路之间的至少一个耦合电阻器。

公开(公告)号：US11882633B2

公开(公告)日：2024-01-23

申请号：US18064938

申请日：2022-12-13

Applicant: OSRAM GmbH

Inventor： Joachim Muehlschlegel ,  Markus Heckmann

IPC: H05B45/37

CPC classification number: H05B45/37

Abstract: A method for operating clocked and regulated electronic power converters may be contained in operating devices for light-emitting diodes. An associated regulating circuit may include at least one regulating amplifier having at least two regulating inputs, from the output of which a negative feedback network runs to one of its regulating inputs, a first input for the signal for a target value of the average of the output power to be regulated, and a second input which forwards a signal for the target value of a waveform or of a pulse pattern for the output power to be regulated to one of the regulating inputs via a DC current-blocking high-pass filter.