公开(公告)号：EP2257135B9

公开(公告)日：2012-09-26

申请号：EP10161147.3

申请日：2010-04-27

申请人： OSRAM SYLVANIA Inc.

发明人： Bakre, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/298 ,  H05B41/38 ,  H05B37/04

CPC分类号： H05B41/2981 ,  H05B37/04

公开(公告)号：EP2257135A1

公开(公告)日：2010-12-01

申请号：EP10161147.3

申请日：2010-04-27

申请人： Osram Sylvania, Inc.

发明人： Bakre, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/298 ,  H05B41/38

CPC分类号： H05B41/2981 ,  H05B37/04

摘要： A ballast (100) for driving one or more lamps (121) includes a controller (111) and a current reduction circuit (140) for accelerating a controller reset. Upon detecting a fault, the controller (111) disables the ballast for a preset period of time, and resets. The controller (111) additionally resets when the ratio of a supplied second value to a supplied first value falls below a threshold value. The current reduction circuit (140) reduces the supplied second value in less than the preset period of time, such that the ratio falls below the threshold value and the controller resets. An emergency lighting system (201) includes the ballast (100) as a primary ballast (100), a backup ballast (200), and a primary power source (102). The controller (111) detects a fault if the primary power source de-energizes and the backup ballast (200) disconnects the one or more lamps (121) from the primary ballast (100). The current reduction circuit (140) accelerates the reset of the controller (111) when the primary power source (102) de-energizes.

摘要翻译： 用于驱动一个或多个灯（121）的镇流器（100）包括用于加速控制器复位的控制器（111）和电流减小电路（140）。 在检测到故障时，控制器（111）在预设的时间段内禁用镇流器，并且复位。 当提供的第二值与所提供的第一值的比值低于阈值时，控制器（111）另外复位。 电流减小电路（140）在小于预设时间段内减小提供的第二值，使得该比率低于阈值并且控制器复位。 应急照​​明系统（201）包括作为主要镇流器（100）的镇流器（100），备用镇流器（200）和主电源（102）。 如果主电源断电并且备用镇流器（200）将一个或多个灯（121）与主镇流器（100）断开，则控制器（111）检测故障。 当主电源（102）断电时，电流减小电路（140）加速控制器（111）的复位。

公开(公告)号：EP2523536A2

公开(公告)日：2012-11-14

申请号：EP12165241.6

申请日：2012-04-24

申请人： OSRAM SYLVANIA INC.

发明人： Kumar, Nitin ,  Bakre, Shashank

IPC分类号： H05B41/42

CPC分类号： H05B41/42 ,  H05B37/0263

摘要： A bi-level lamp ballast (104) to selectively operate two lamps is provided. The ballast (104) includes a control circuit (130) having an input, connected to a switching network (128), and an output, which provides a particular control signal based on the state of the switching network (128). The ballast (104) also includes respective lamp control switches (RLA, RLB), each having respective outputs. The first switch (RLA) is connected to the output and a ballast power supply (102). In its first state, it connects the ballast power supply (102) to its first output, and in its second state, it connects the ballast power supply (102) to its second output. The second switch (RLB) is connected to the output and a ground. In its first state, it connects the ground to its first output, and in its second state, it connects the ground to its second output. The state of each lamp control switch (RLA, RLB) depends on the control signal generated by the control circuit (130).

摘要翻译： 提供了一种用于选择性地操作两个灯的双电平镇流器（104）。 镇流器（104）包括具有连接到开关网络（128）的输入端的控制电路（130）和基于交换网络（128）的状态提供特定控制信号的输出端。 镇流器（104）还包括各自具有相应输出的相应的灯控制开关（RLA，RLB）。 第一开关（RLA）连接到输出端和镇流器电源（102）。 在其第一状态下，它将镇流器电源（102）连接到其第一输出端，​​并且在其第二状态下，将镇流器电源（102）连接到其第二输出端。 第二开关（RLB）连接到输出端和接地端。 在其第一个状态下，它将地面连接到其第一个输出，而在第二个状态下，它将地面连接到其第二个输出。 每个灯控制开关（RLA，RLB）的状态取决于由控制电路（130）产生的控制信号。

公开(公告)号：EP2257133A3

公开(公告)日：2011-10-12

申请号：EP10163250.3

申请日：2010-05-19

申请人： OSRAM SYLVANIA Inc.

发明人： Bakre, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/285 ,  H05B41/04 ,  H05B41/282 ,  H05B41/295 ,  H05B41/298

CPC分类号： H05B41/295 ,  H05B41/2828 ,  H05B41/2855 ,  H05B41/2985 ,  Y02B20/186

摘要： A restart circuit for causing an electronic ballast to perform a restart in response to reconnecting any lamp of a multiple lamp configuration of the electronic ballast to the electronic ballast is disclosed. The electronic ballast includes a filament health check circuit for providing a first current through a monitored filament of the lamps to a controller of the ballast. The controller restarts the electronic ballast when a determined ratio of the first current to a reference current indicates that the monitored filament has been disconnected or broken (i.e., the first current substantially decreases) and is subsequently replaced or reconnected to the ballast (i.e., the first current returns to a predetermined level). The ballast further comprises a dv/dt circuit for reducing the first current for a transient time period in response to reconnecting a filament other than the monitored filament to the ballast, causing the controller to restart the ballast.

公开(公告)号：EP2257133A2

公开(公告)日：2010-12-01

申请号：EP10163250.3

申请日：2010-05-19

申请人： Osram Sylvania, Inc.

发明人： Bakre, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/285 ,  H05B41/04

CPC分类号： H05B41/295 ,  H05B41/2828 ,  H05B41/2855 ,  H05B41/2985 ,  Y02B20/186

摘要： A restart circuit for causing an electronic ballast to perform a restart in response to reconnecting any lamp of a multiple lamp configuration of the electronic ballast to the electronic ballast is disclosed. The electronic ballast includes a filament health check circuit for providing a first current through a monitored filament of the lamps to a controller of the ballast. The controller restarts the electronic ballast when a determined ratio of the first current to a reference current indicates that the monitored filament has been disconnected or broken (i.e., the first current substantially decreases) and is subsequently replaced or reconnected to the ballast (i.e., the first current returns to a predetermined level). The ballast further comprises a dv/dt circuit for reducing the first current for a transient time period in response to reconnecting a filament other than the monitored filament to the ballast, causing the controller to restart the ballast.

摘要翻译： 公开了一种使电子镇流器响应于将电子镇流器的多灯配置的任何灯重新连接到电子镇流器而重新启动的重启电路。 电子镇流器包括灯丝健康检查电路，用于通过灯的监视灯提供第一电流到镇流器的控制器。 当第一电流与参考电流的确定比率指示所监测的灯丝已经断开或断开（即，第一电流基本上减小）并且随后被替换或重新连接到镇流器时，控制器重新启动电子镇流器（即， 第一电流返回到预定水平）。 镇流器还包括dv / dt电路，用于响应于除了被监测的灯丝之外的灯丝重新连接到镇流器而将第一电流减小到瞬时时间段，导致控制器重新启动镇流器。

公开(公告)号：EP2840868A1

公开(公告)日：2015-02-25

申请号：EP14178917.2

申请日：2014-07-29

申请人： OSRAM SYLVANIA INC.

发明人： Kumar, Nitin ,  Ziegler, Markus

IPC分类号： H05B33/08

CPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/33515 ,  H02M3/3376 ,  H02M2001/0058 ,  H05B33/0887 ,  Y02B20/348

摘要： A no load detection and shutdown circuit (20) in an isolated driver (10) is provided. A no load condition is detected by primary side evaluation of a reflected voltage. If a determination is made that a no load condition is present, the no load detection circuit (20) signals a half bridge inverter (16) of the driver (10) to cease oscillations, shutting down the driver (10).

摘要翻译： 提供了隔离驱动器（10）中的空载检测和关断电路（20）。 通过反射电压的初级侧评估来检测空载条件。 如果确定存在空载条件，则空载检测电路（20）向驾驶员（10）的半桥逆变器（16）发信号，以停止振荡，关闭驾驶员（10）。

公开(公告)号：EP2257133B1

公开(公告)日：2013-07-10

申请号：EP10163250.3

申请日：2010-05-19

申请人： OSRAM SYLVANIA Inc.

发明人： Bakre, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/295 ,  H05B41/298 ,  H05B41/282 ,  H05B41/285

CPC分类号： H05B41/295 ,  H05B41/2828 ,  H05B41/2855 ,  H05B41/2985 ,  Y02B20/186

公开(公告)号：EP2257135B1

公开(公告)日：2012-03-28

申请号：EP10161147.3

申请日：2010-04-27

申请人： OSRAM SYLVANIA Inc.

发明人： Bakre, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/298 ,  H05B41/38 ,  H05B37/04

CPC分类号： H05B41/2981 ,  H05B37/04

公开(公告)号：EP2259660A2

公开(公告)日：2010-12-08

申请号：EP10164250.2

申请日：2010-05-28

申请人： OSRAM SYLVANIA INC.

发明人： Barke, Shashank ,  Kumar, Nitin

IPC分类号： H05B41/28 ,  H05B41/295

CPC分类号： H05B41/28 ,  H05B41/295 ,  H05B41/42

摘要： A control circuit for use in a ballast (100) configured for powering a first lamp set and a second lamp set. The second lamp set is operated via a controller (122B) and a second lamp driver circuit (120B). The controller (122B) enables the second lamp driver circuit (120B) as a function of a monitored value corresponding to a current through a lamp of the second lamp set. The control circuit (170) includes first (172) and second input terminals (174) for selectively connecting to the power supply. The control circuit (170) reduces the monitored value as a function of a connection state of the first (172) and second input terminals (174) of the control circuit (170) to the power supply. Thus, the control circuit (170) causes the controller (122B) to selectively operate the second lamp driver circuit (120B) in order to energize the second lamp set in combination with the first lamp set.

摘要翻译： 一种用于镇流器（100）的控制电路，其配置用于为第一灯组和第二灯组供电。 第二灯组经由控制器（122B）和第二灯驱动电路（120B）操作。 控制器（122B）使第二灯驱动电路（120B）作为与通过第二灯组的灯的电流对应的监视值的函数。 控制电路（170）包括用于选择性地连接到电源的第一（172）和第二输入端子（174）。 控制电路（170）根据控制电路（170）的第一（172）和第二输入端（174）与电源的连接状态来减小监视值。 因此，控制电路（170）使得控制器（122B）选择性地操作第二灯驱动电路（120B），以便与第一灯组组合激励第二灯组。

公开(公告)号：EP2955832A2

公开(公告)日：2015-12-16

申请号：EP15168084.0

申请日：2015-05-19

申请人： Osram Sylvania Inc.

发明人： Choudhury, Ayan K. ,  Kumar, Nitin ,  Ziegler, Markus

IPC分类号： H02M3/338 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02M3/3385 ,  H02M2001/007 ,  H05B33/08

摘要： An inverter (102) for a lighting device including one or more solid state light sources is used to power a secondary load, such as a cooling device, sensor, or control with an auxiliary power circuit (100) that provides a selectable auxiliary voltage to the secondary load. The auxiliary power circuit (100) includes a voltage regulation circuit and a voltage selection circuit. The voltage selection circuit provides a feedback voltage to the voltage regulation circuit which his indicative of auxiliary output voltage. The voltage regulation circuit operates based on the feedback voltage and a reference voltage to adjust the auxiliary voltage to a level that differs from the input voltage from the inverter (102).