公开(公告)号：US11284488B2

公开(公告)日：2022-03-22

申请号：US17272936

申请日：2019-09-04

Applicant: Osram GmbH

Inventor： Joachim Muehlschlegel ,  Alessio Griffoni ,  Francesco Angelin ,  Antonio Stocco

IPC: H05B45/10 ,  H05B45/32 ,  H05B45/325 ,  H05B45/345 ,  H05B45/375

Abstract: An assembly and a method is provided where the LED module includes a plurality of module units interconnected between common connection lines in a sequential order with increasing distances towards a connection terminal of the LED module. The circuit assembly includes an output terminal having a first output terminal portion and a second output terminal portion, a main power supply for supplying an operation voltage potential to a first output terminal portion, a control device for generating a pulse width modulation signal, and an electronic switch coupled to the control device and configured to obtain the pulse width modulation signal and arranged to connect and disconnect a second output terminal portion to/from a reference potential in accordance with the pulse width modulation signal, such as to supply a pulse width modulated voltage to the output terminal. A pulse shaping unit is coupled to the control device.

公开(公告)号：US20150145437A1

公开(公告)日：2015-05-28

申请号：US14410581

申请日：2013-06-25

Applicant: OSRAM GmbH

Inventor： Walter Limmer ,  Francesco Angelin ,  Paolo De Anna ,  Bernd Rudolph

IPC: H05B33/08

CPC classification number: H05B33/0827 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0854 ,  H05B33/089

Abstract: Various embodiments may relate to a power supply unit, including an output for outputting an operating current depending on an internal measurement signal, a communications line, and a current-measuring device, which is connected to the communications line. The current-measuring device is designed to generate a current on the communications line which is proportional to the conductance of a current-setting resistance. The current-measuring device has a current mirror, which is designed to mirror the generated current on the communications line. The current-measuring device is designed to convert the mirrored current into an internal measurement signal with a reference potential which is different than the communications line. At least one light source module is connectable to the output, wherein the at least one light source module has the current-setting resistance, which is connectable to the communications line.

Abstract translation: 各种实施例可以涉及一种电源单元，其包括用于输出取决于内部测量信号的工作电流的输出，通信线路和连接到通信线路的电流测量设备。 电流测量装置被设计成在通信线路上产生与电流设定电阻的电导成比例的电流。 电流测量装置具有电流镜，其被设计成镜像通信线路上产生的电流。 电流测量装置被设计为将镜像电流转换成具有与通信线不同的参考电位的内部测量信号。 至少一个光源模块可连接到输出，其中至少一个光源模块具有可连接到通信线路的电流设定电阻。

公开(公告)号：US20140152273A1

公开(公告)日：2014-06-05

申请号：US14094849

申请日：2013-12-03

Applicant: OSRAM GmbH

Inventor： Francesco Angelin

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M3/155 ,  H02M2003/1557 ,  H05B33/0815

Abstract: A converter circuit may include: a first node receiving an input voltage; a second node providing an output voltage; a first inductor between the first node and a third node; a capacitor between the third node and a first terminal of a diode, the other terminal of the diode providing said output voltage; a second inductor between the first terminal of the diode and common; an electronic switch acting between the third node and common; a first current generator acting between the first node and the switch to drive the switch to the conductive condition; and a second current generator sensitive to the current through the switch in the “on” condition and/or the output voltage on the second node, the second current generator to draw current from the first current generator to drive the switch to the non-conductive condition.

Abstract translation: A转换器电路可以包括：接收输入电压的第一节点; 提供输出电压的第二节点; 第一节点和第三节点之间的第一电感器; 在所述第三节点和二极管的第一端子之间的电容器，所述二极管的另一端提供所述输出电压; 在二极管的第一端和公共端之间的第二电感器; 在第三节点和公共端之间起作用的电子开关; 作用在第一节点和开关之间的第一电流发生器，以将开关驱动到导电状态; 以及第二电流发生器，其对通过开关的电流在“接通”状态和/或第二节点上的输出电压敏感，第二电流发生器从第一电流发生器抽取电流以将开关驱动到非导通 条件。

公开(公告)号：US11516900B2

公开(公告)日：2022-11-29

申请号：US17336324

申请日：2021-06-02

Applicant: OSRAM GmbH

Inventor： Francesco Angelin ,  Alessio Griffoni

IPC: H05B45/325 ,  H05B45/10 ,  H05B45/335

Abstract: A method for driving one or more electrically powered light sources, such as LED modules, may include applying a pulse-width-modulated signal thereto having a pulse-repetition frequency and a duty-cycle, the duty-cycle being selectively variable in order to vary the intensity of light emitted by the light source or light sources. To counter the occurrence of temporal light artefacts, or TLAs, the method may include frequency modulating the pulse-width-modulated signal (VPWM) by varying the pulse-repetition frequency thereof around a certain value between a lower frequency value and a higher frequency value, thus giving rise to a signal with combined FM/PWM modulation.

公开(公告)号：US10447168B2

公开(公告)日：2019-10-15

申请号：US15761849

申请日：2016-09-16

Applicant: OSRAM GmbH

Inventor： Francesco Angelin

IPC: H02M3/335 ,  H05B33/08 ,  H02M1/00

Abstract: An electronic converter comprising a switching stage comprising at least one electronic switch, wherein the switching stage is adapted to provide a current via a terminal; a first capacitor, wherein the first capacitor provides a first voltage. Specifically, converter further comprises: a second capacitor, wherein the second capacitor provides a second voltage, comparison means configured to detect the difference between the first voltage and the second voltage, and determine a comparison signal which indicates whether this difference is greater than a threshold, and switching means configured to transfer selectively current to the first capacitor or the second capacitor as a function of the comparison signal.

公开(公告)号：US09445466B2

公开(公告)日：2016-09-13

申请号：US14408570

申请日：2013-06-25

Applicant: OSRAM GmbH

Inventor： Francesco Angelin ,  Paolo De Anna ,  Bernd Rudolph ,  Siegfried Mayer ,  Franz Maier

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0827 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0854 ,  H05B33/089

Abstract: Various embodiments may relate to a power supply unit including an output for outputting a current, a communications line, a current-measuring device and a microcontroller including an analog-to-digital converter. The current-measuring device generates a current on the communications line which is proportional to the conductance of a current-setting resistance, the current is convertable into a digital value by the analog-to-digital converter, the power supply unit assumes various operating states based on the digital value of the measured current, and at least one light source module is connectable to the output, wherein the at least one light source module has the current-setting resistance, which is connectable to the communications line. Various embodiments may further relate to a light source module including an input, a communications line and a current-setting resistance for setting the current applied to the light source module.

Abstract translation: 各种实施例可以涉及包括用于输出电流，通信线路，电流测量装置和包括模数转换器的微控制器的输出的电源单元。 电流测量装置在通信线路上产生与电流设定电阻的电导成比例的电流，电流可由模数转换器转换为数字值，电源单元承担各种操作状态 基于测量电流的数字值，并且至少一个光源模块可连接到输出，其中至少一个光源模块具有可连接到通信线路的电流设定电阻。 各种实施例还可以涉及包括输入，通信线路和用于设置施加到光源模块的电流的电流设定电阻的光源模块。

公开(公告)号：US09398658B2

公开(公告)日：2016-07-19

申请号：US14300270

申请日：2014-06-10

Applicant: OSRAM GmbH

Inventor： Francesco Angelin ,  Paolo De Anna ,  Hannes Wagner

IPC: H05B33/08

CPC classification number: H05B33/0842 ,  H05B33/0845

Abstract: A lighting module may include at least one light source, and an identification element that identifies the supply current required by the light source, wherein the identification element includes a first terminal and a second terminal for connection to an electronic converter.In particular, the identification element includes at least one shunt regulator configured for limiting the voltage across the first terminal and the second terminal to a maximum threshold voltage, wherein the maximum threshold voltage identifies the supply current required by the light source.

Abstract translation: 照明模块可以包括至少一个光源和识别光源所需的电源电流的识别元件，其中所述识别元件包括用于连接到电子转换器的第一端子和第二端子。 特别地，识别元件包括至少一个分流调节器，其被配置为将跨越第一端子和第二端子的电压限制到最大阈值电压，其中最大阈值电压识别光源所需的电源电流。

公开(公告)号：US20150195877A1

公开(公告)日：2015-07-09

申请号：US14408570

申请日：2013-06-25

Applicant: OSRAM GmbH

Inventor： Francesco Angelin ,  Paolo De Anna ,  Bernd Rudolph ,  Siegfried Mayer ,  Franz Maier

IPC: H05B33/08

CPC classification number: H05B33/0827 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0854 ,  H05B33/089

Abstract: Various embodiments may relate to a power supply unit including an output for outputting a current, a communications line, a current-measuring device and a microcontroller including an analog-to-digital converter. The current-measuring device generates a current on the communications line which is proportional to the conductance of a current-setting resistance, the current is convertable into a digital value by the analog-to-digital converter, the power supply unit assumes various operating states based on the digital value of the measured current, and at least one light source module is connectable to the output, wherein the at least one light source module has the current-setting resistance, which is connectable to the communications line. Various embodiments may further relate to a light source module including an input, a communications line and a current-setting resistance for setting the current applied to the light source module.

Abstract translation: 各种实施例可以涉及包括用于输出电流，通信线路，电流测量装置和包括模数转换器的微控制器的输出的电源单元。 电流测量装置在通信线路上产生与电流设定电阻的电导成比例的电流，电流可由模数转换器转换为数字值，电源单元承担各种操作状态 基于测量电流的数字值，并且至少一个光源模块可连接到输出，其中至少一个光源模块具有可连接到通信线路的电流设定电阻。 各种实施例还可以涉及包括输入，通信线路和用于设置施加到光源模块的电流的电流设定电阻的光源模块。

公开(公告)号：US20150002051A1

公开(公告)日：2015-01-01

申请号：US14367946

申请日：2012-12-17

Applicant: Osram GmbH

Inventor： Francesco Angelin ,  Paolo De Anna

IPC: H02M3/156 ,  H05B33/08

CPC classification number: H02M3/156 ,  H05B33/0815

Abstract: A converter, for feeding a load via an inductor, includes a switch to permit or prevent the feeding of current towards inductor, and a current sensor with a resistor coupled to the converter output, adapted to sense the current through said inductor when switch is off. A further switch is provided which is conductive when said switch is turned off; moreover, a drive circuitry is provided which is coupled to current sensor to turn said switch on as a function of the detected current. Drive circuitry is fed by a bootstrap circuit which includes: a bootstrap capacitor to accumulate a feeding charge for drive circuitry and coupled to the converter output and to a bootstrap diode, a coupling capacitor interposed between said further switch and bootstrap diode, as well as a bootstrap resistor interposed between a power supply source and bootstrap diode to charge coupling capacitor therefrom.

Abstract translation: 用于通过电感器馈送负载的转换器包括允许或防止向电感器馈送电流的开关以及耦合到转换器输出的电阻器的电流传感器，适于在开关断开时感测通过所述电感器的电流 。 提供另一开关，当所述开关断开时，该开关是导电的; 此外，提供驱动电路，其耦合到电流传感器以根据检测到的电流来转动所述开关。 驱动电路由自举电路馈送，该自举电路包括：自举电容器，用于累积用于驱动电路的馈电电荷并耦合到转换器输出和自举二极管，插入在所述另外的开关和自举二极管之间的耦合电容器，以及 自举电阻器插入在电源和自举二极管之间以从其馈送耦合电容器。

公开(公告)号：US10951122B2

公开(公告)日：2021-03-16

申请号：US16558328

申请日：2019-09-03

Applicant: OSRAM GmbH

Inventor： Francesco Angelin

IPC: H02M3/335 ,  H05B45/37 ,  H02M1/00

Abstract: An electronic converter comprising a switching stage having at least one electronic switch, wherein the switching stage is configured to provide current pulses via a terminal; a first capacitor, wherein the first capacitor provides a first voltage. Specifically, the electronic converter further includes a second capacitor to provide a second voltage, comparison means configured to detect the difference between the first voltage and the second voltage, and determine a comparison signal which indicates whether this difference is greater than a threshold, and switching means configured to selectively transfer the current to the first capacitor or the second capacitor as a function of the comparison signal. The switching means may include a SCR, where the anode of the SCR is connected to the terminal that provides current pulses and where the cathode of the SCR is connected to the second capacitor.