公开(公告)号：US20120313538A1

公开(公告)日：2012-12-13

申请号：US13155104

申请日：2011-06-07

Applicant: Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre

Inventor： Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre

IPC: H05B37/02

CPC classification number: H05B41/2806 ,  Y02B20/22

Abstract: A ballast to energize a lamp at a selected lighting level is provided. The ballast includes a rectifier, a buck converter, and a controller. The rectifier produces a DC voltage with a substantially constant magnitude. The buck converter generates a lamp voltage output from the DC voltage based on a duty cycle. The output has a magnitude that is varied based on the duty cycle to energize the lamp at a selected lighting level. The controller receives a dim input signal indicating the selected lighting level, and provides an appropriate control signal to the buck converter. The appropriate control signal indicates a particular duty cycle corresponding to magnitude of the output to produce the selected lighting level. In response to receiving the control signal, the buck converter adjusts the duty cycle accordingly, producing the output having the magnitude to energize the lamp at the selected lighting level.

Abstract translation: 提供了在选定的照明级别对灯进行通电的镇流器。 镇流器包括整流器，降压转换器和控制器。 整流器产生具有基本恒定幅度的直流电压。 降压转换器基于占空比产生从直流电压输出的灯电压。 输出具有基于占空比而变化的幅度，以在所选择的照明水平激励灯。 控制器接收指示所选择的照明电平的暗淡的输入信号，并向降压转换器提供适当的控制信号。 适当的控制信号指示对应于输出的幅度的特定占空比以产生所选择的照明电平。 响应于接收到控制信号，降压转换器相应地调节占空比，产生具有在所选择的照明电平下激励灯的幅度的输出。

公开(公告)号：US10381926B2

公开(公告)日：2019-08-13

申请号：US14864838

申请日：2015-09-24

Applicant: Peng Xiao ,  Markus Ziegler

Inventor： Peng Xiao ,  Markus Ziegler

IPC: H02M3/157 ,  H02M7/5395 ,  H03M1/68 ,  H02M3/156 ,  H03M1/82 ,  H05B33/08 ,  H02M1/00

Abstract: A digitally compensated hysteretic power supply with enhanced resolution is provided. Such a power supply includes a comparator that is used to compare a load current sense signal with an internal signal generated from a digital-to-analog converter (DAC). A compensation circuit at a DAC input operates to improve current accuracy beyond the given DAC resolution. The current sense signal is converted to its digital equivalent, which is fed to a proportional-integral (PI) compensation loop, which in turn generates a relatively precise high resolution DAC input value. The DAC uses the higher part of the DAC value. The lower part of the DAC value is treated as a duty cycle number, and the DAC output is toggled between two levels at this duty cycle. This toggling generates a current output signal having a value that is the average of the two toggled values.

公开(公告)号：US20170063240A1

公开(公告)日：2017-03-02

申请号：US14833467

申请日：2015-08-24

Applicant: Nitin Kumar ,  Markus Ziegler ,  Andrew Johnsen

Inventor： Nitin Kumar ,  Markus Ziegler ,  Andrew Johnsen

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/44 ,  H02M3/335 ,  H02M2001/0006 ,  H02M2001/348

Abstract: A DC-DC flyback converter includes a transformer and a switching component connected between the transformer and a ground. The switching component controls current flow through the primary winding of the transformer. A snubber circuit is connected between ground and the connection between the transformer and the switching component. The snubber circuit reduces transient voltage spikes across the switching component. A capacitive component of the snubber circuit provides stability for a primary side auxiliary output voltage while maintaining power factor and THD performance.

Abstract translation: DC-DC反激转换器包括变压器和连接在变压器和地之间的开关元件。 开关元件控制通过变压器初级绕组的电流。 缓冲电路连接在地和变压器与开关元件之间的连接处。 缓冲电路减少了开关元件上的瞬态电压尖峰。 缓冲电路的电容分量为初级侧辅助输出电压提供稳定性，同时保持功率因数和THD性能。

公开(公告)号：US20140097761A1

公开(公告)日：2014-04-10

申请号：US13904444

申请日：2013-05-29

Applicant: Keng Chen ,  Christian Breuer ,  Markus Ziegler

Inventor： Keng Chen ,  Christian Breuer ,  Markus Ziegler

IPC: H05B33/08

CPC classification number: H05B33/0893 ,  H05B33/0827 ,  H05B33/089

Abstract: Systems and method for detecting failure in solid state light sources and recovering from the failure are provided. A light engine including a controller circuit and strings of solid state light sources emits light in response to drive current provided by a driver circuit. The controller circuit monitors an output voltage of the driver circuit, and detects a failure of one of the solid state light sources. The failure is associated with a change in the output voltage of the driver circuit. The controller circuit then transmits a first signal to the driver circuit in response to detecting a failure, and the driver circuit is configured to decrease the drive current in response to the first signal.

Abstract translation: 提供了用于检测固态光源故障和故障恢复的系统和方法。 包括控制器电路和固态光源串的光引擎响应于由驱动器电路提供的驱动电流而发光。 控制器电路监视驱动器电路的输出电压，并检测其中一个固态光源的故障。 该故障与驱动电路的输出电压的变化有关。 然后，控制器电路响应于检测到故障而将第一信号发送到驱动器电路，并且驱动器电路被配置为响应于第一信号而减小驱动电流。

公开(公告)号：US20140049159A1

公开(公告)日：2014-02-20

申请号：US14064837

申请日：2013-10-28

Applicant: Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre ,  Ayan Choudhury

Inventor： Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre ,  Ayan Choudhury

IPC: H05B41/16 ,  H01J65/04

CPC classification number: H05B41/16 ,  H01J65/048 ,  H05B41/2806 ,  Y02B20/22

Abstract: A multi-strike ballast to ignite an electrodeless lamp is disclosed, and includes an inverter circuit, a protection circuit, and a controller. The inverter circuit, upon activation, sends an ignition pulse to the lamp. The inverter circuit shuts down upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The protection circuit senses a change in a voltage associated with the lamp. The sensed changed may indicate that the lamp has not yet ignited or that the lamp is broken. The controller receives the sensed change in voltage and, in response, sends a deactivation signal to the inverter circuit. The controller waits a predetermined time and then sends an activation signal to the inverter circuit. The controller repeats until a change in voltage associated with the lamp is not sensed, or until a predefined number of repeats occur, providing multiple ignition pulses to the lamp.

Abstract translation: 公开了一种点燃无电极灯的多冲击镇流器，包括逆变器电路，保护电路和控制器。 逆变器电路在激活时向灯发出点火脉冲。 逆变器电路在接收到去激活信号时关闭，并在接收到激活信号时激活，触发另一个点火脉冲。 保护电路检测与灯相关的电压的变化。 所感测到的变化可能指示灯还没有被点燃或灯被破坏。 控制器接收感测到的电压变化，作为响应，向逆变器电路发送去激活信号。 控制器等待预定时间，然后将激活信号发送到逆变器电路。 控制器重复，直到没有检测到与灯相关的电压变化，或直到发生预定数量的重复，向灯提供多个点火脉冲。

公开(公告)号：US20060186828A1

公开(公告)日：2006-08-24

申请号：US11346159

申请日：2006-02-03

Applicant: Alois Braun ,  Walter Limmer ,  Joachim Muhlschlegel ,  Markus Ziegler

Inventor： Alois Braun ,  Walter Limmer ,  Joachim Muhlschlegel ,  Markus Ziegler

IPC: H05B39/04

CPC classification number: H05B41/2883 ,  H05B41/2825 ,  H05B41/288 ,  H05B41/2887 ,  Y02B20/202

Abstract: The invention relates to an electronic ballast and to an operating method for high-pressure discharge lamps. During a current measurement, in particular for current regulation, only switching phases of a specific polarity of the current are taken into consideration.

公开(公告)号：US09699837B2

公开(公告)日：2017-07-04

申请号：US14313203

申请日：2014-06-24

Applicant: Nitin Kumar ,  Markus Ziegler ,  Naveen Tumula ,  Thomas Schalton

Inventor： Nitin Kumar ,  Markus Ziegler ,  Naveen Tumula ,  Thomas Schalton

IPC: H05B33/08 ,  H02M3/24 ,  H02M3/33 ,  H02M3/335 ,  H02M1/00

CPC classification number: H05B33/0815 ,  H02M3/24 ,  H02M3/33507 ,  H02M2001/0025 ,  H05B33/08 ,  Y02B20/348

Abstract: A driver port that provides selectable output currents based on connections thereto, and a driver including the same, is provided. A plurality of shunt resistors are connected in series between a negative output of a driver and a ground. A driver port having a plurality of connection points is provided, each respective connection point connected to a different connection between two of the plurality of shunt resistors. A load including one or more solid state light sources is capable of being connected between one of the connection points of the driver port and a positive output of the driver.

公开(公告)号：US20150042242A1

公开(公告)日：2015-02-12

申请号：US14313203

申请日：2014-06-24

Applicant: Nitin Kumar ,  Markus Ziegler ,  Naveen Tumula ,  Thomas Schalton

Inventor： Nitin Kumar ,  Markus Ziegler ,  Naveen Tumula ,  Thomas Schalton

IPC: H02M3/24 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H02M3/24 ,  H02M3/33507 ,  H02M2001/0025 ,  H05B33/08 ,  Y02B20/348

Abstract: A driver port that provides selectable output currents based on connections thereto, and a driver including the same, is provided. A plurality of shunt resistors are connected in series between a negative output of a driver and a ground. A driver port having a plurality of connection points is provided, each respective connection point connected to a different connection between two of the plurality of shunt resistors. A load including one or more solid state light sources is capable of being connected between one of the connection points of the driver port and a positive output of the driver.

Abstract translation: 提供了一种驱动器端口，其基于与其连接提供可选择的输出电流，以及包括该驱动器端口的驱动器。 多个分流电阻器串联连接在驱动器的负输出和地之间。 提供具有多个连接点的驱动器端口，每个相应的连接点连接到多个分流电阻器中的两个之间的不同连接。 包括一个或多个固态光源的负载能够连接在驱动器端口的一个连接点和驱动器的正输出之间。

公开(公告)号：US20150042227A1

公开(公告)日：2015-02-12

申请号：US14312919

申请日：2014-06-24

Applicant: Nitin Kumar ,  Markus Ziegler

Inventor： Nitin Kumar ,  Markus Ziegler

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H02M3/24 ,  H02M3/33507 ,  H02M2001/0025 ,  H05B33/08 ,  Y02B20/348

Abstract: A bi-level current configurable driver is provided. The driver includes a feedback circuit, a driver circuit providing a driver signal to a half bridge inverter, and a step-dim interface coupled to a first alternating current input line, a second alternating current input line, and a neutral line, providing voltage to the driver circuit. The driver also includes a first feedforward circuit coupled to the step-dim interface, where the first feedforward circuit receives a first signal from the step-dim interface based on the states of the first alternating current input line, the second alternating current input line, and the neutral line. In a first state, the driver provides full current to a load, and in a second state, the driver provides less than full current to the load.

Abstract translation: 提供双电平电流可配置驱动器。 驱动器包括反馈电路，向半桥逆变器提供驱动器信号的驱动器电路，以及耦合到第一交流输入线，第二交流输入线和中性线的阶梯形接口，提供电压到 驱动电路。 所述驱动器还包括耦合到所述渐变接口的第一前馈电路，其中所述第一前馈电路基于所述第一交流电输入线，所述第二交流输入线，所述第二交流输入线， 和中性线。 在第一状态下，驱动器向负载提供全电流，而在第二状态下，驱动器向负载提供小于满电流。

公开(公告)号：US08836240B2

公开(公告)日：2014-09-16

申请号：US13539402

申请日：2012-06-30

Applicant: Nitin Kumar ,  Markus Ziegler ,  Robert Martin ,  Shashank Bakre

Inventor： Nitin Kumar ,  Markus Ziegler ,  Robert Martin ,  Shashank Bakre

IPC: H05B37/02

CPC classification number: H05B41/2883 ,  H05B41/36

Abstract: A ballast for energizing a lamp at a lighting level selected from a plurality of lamp lighting levels. The ballast includes a buck converter circuit configured to receive a DC voltage signal having a substantially constant magnitude. The buck converter circuit has a duty cycle for generating a lamp voltage output signal from the DC voltage signal. The lamp voltage output signal has a magnitude that is varied by the duty cycle to energize the lamp at the plurality of lamp lighting levels. A controller is configured to receive a dim input signal indicative of the selected lamp lighting level and to provide a control signal to the buck converter circuit as a function of the dim input signal. The control signal indicates a particular duty cycle corresponding to a lamp voltage output signal having a magnitude for energizing the lamp at the selected lamp lighting level.

Abstract translation: 一种镇流器，用于在从多个灯照明水平中选择的照明水平上激发灯。 镇流器包括被配置为接收具有基本恒定幅度的DC电压信号的降压转换器电路。 降压转换器电路具有用于从直流电压信号产生灯电压输出信号的占空比。 灯电压输出信号具有由占空比变化的大小，以在多个灯照明电平下给灯供电。 控制器被配置为接收指示所选择的灯点亮电平的暗淡输入信号，并且作为所述暗淡输入信号的函数向所述降压转换器电路提供控制信号。 控制信号表示对应于灯电压输出信号的特定占空比，该灯电压输出信号具有在选定的灯照明电平下对灯进行激励的幅度。