公开(公告)号：US08004198B2

公开(公告)日：2011-08-23

申请号：US12474080

申请日：2009-05-28

Applicant: Shashank Bakre ,  Nitin Kumar

Inventor： Shashank Bakre ,  Nitin Kumar

IPC: H05B37/02

CPC classification number: H05B41/2981 ,  H05B37/04

Abstract: A ballast for driving one or more lamps includes a controller and a current reduction circuit for accelerating a controller reset. Upon detecting a fault, the controller disables the ballast for a preset period of time, and resets. The controller additionally resets when the ratio of a supplied second value to a supplied first value falls below a threshold value. The current reduction circuit 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 includes the ballast as a primary ballast, a backup ballast, and a primary power source. The controller detects a fault if the primary power source de-energizes and the backup ballast disconnects the one or more lamps from the primary ballast. The current reduction circuit accelerates the reset of the controller when the primary power source de-energizes.

Abstract translation: 用于驱动一个或多个灯的镇流器包括用于加速控制器复位的控制器和电流减小电路。 检测到故障后，控制器会在预设的时间段内关闭镇流器，并重置。 当提供的第二值与所提供的第一值的比率低于阈值时，控制器另外复位。 电流减小电路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​​明系统包括镇流器作为主要镇流器，备用镇流器和主电源。 如果主电源断电，并且备用镇流器将一个或多个灯与主镇流器断开连接，则控制器将检测故障。 当主电源断电时，电流降低电路加速了控制器的复位。

公开(公告)号：US20100301754A1

公开(公告)日：2010-12-02

申请号：US12474049

申请日：2009-05-28

Applicant: Shashank Bakre ,  Nitin Kumar

Inventor： Shashank Bakre ,  Nitin Kumar

IPC: H05B37/02

CPC classification number: H05B41/28 ,  H05B41/295 ,  H05B41/42

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

Abstract translation: 一种用于镇流器的控制电路，其配置用于为第一灯组和第二灯组供电。 第二灯组通过控制器和第二灯驱动器电路操作。 控制器使得第二灯驱动器电路作为与通过第二灯组的灯的电流相对应的监视值的函数。 控制电路包括用于选择性地连接到电源的第一和第二输入端子。 控制电路根据控制电路的第一和第二输入端子与电源的连接状态来减小监视值。 因此，控制电路使得控制器选择性地操作第二灯驱动器电路，以便与第一灯组组合激励第二灯组。

公开(公告)号：US20140368120A1

公开(公告)日：2014-12-18

申请号：US13917414

申请日：2013-06-13

Applicant: Nitin Kumar ,  Shashank Bakre

Inventor： Nitin Kumar ,  Shashank Bakre

IPC: H05B37/02

CPC classification number: H05B41/2988

Abstract: A ballast comprises an inverter circuit for providing an oscillating current signal for energizing the at least one lamp. The inverter circuit comprises a first switching component and a second switching component each having a collector terminal, a base terminal, and an emitter terminal. And, each switching component is configured for alternately operating between a conductive state and a non-conductive state. A first collector-emitter circuit is connected between the collector terminal and the emitter terminal of the first switching component, wherein the first collector-emitter circuit has a first resistance of zero or more Ohms. A second collector-emitter circuit is connected between the collector terminal and the emitter terminal of the second switching component, wherein the second collector-emitter circuit has a second resistance of zero or more Ohms and the first resistance and the second resistance are unequal.

Abstract translation: 镇流器包括用于提供用于激励至少一个灯的振荡电流信号的逆变器电路。 逆变器电路包括具有集电极端子，基极端子和发射极端子的第一开关部件和第二开关部件。 并且，每个开关部件被配置为在导通状态和非导通状态之间交替地操作。 第一集电极 - 发射极电路连接在第一开关部件的集电极端子和发射极端子之间，其中第一集电极 - 发射极电路具有零个或更多欧姆的第一电阻。 第二集电极 - 发射极电路连接在第二开关部件的集电极端子和发射极端子之间，其中第二集电极 - 发射极电路具有零欧姆以上的第二电阻，第一电阻和第二电阻不相等。

公开(公告)号：US08686659B2

公开(公告)日：2014-04-01

申请号：US13169613

申请日：2011-06-27

Applicant: Nitin Kumar ,  Shashank Bakre ,  Thomas J. Schalton

Inventor： Nitin Kumar ,  Shashank Bakre ,  Thomas J. Schalton

IPC: H05B37/02

CPC classification number: H05B41/2806 ,  H05B37/0209 ,  Y02B20/22

Abstract: A ballast that selectively operates multiple lamps is provided. The ballast includes a switching network, capable of operating in a number of switching configurations. The ballast also includes a control circuit, and two lamp control switches. The control circuit is connected to the switching network, and provides respective control signals via respective output terminals as a function of the switching configuration of the switching network. Each lamp control switch is in parallel with its lamp and is connected to a respective output terminal. The first lamp control switch is connected to a ballast power supply, and either provides power to the first lamp or does not, depending on the first control signal. The second lamp control switch is connected to the first lamp control switch and to ground, and either provides power to the second lamp or does not, depending on the second control signal.

Abstract translation: 提供了选择性地操作多个灯的镇流器。 镇流器包括能够以多个开关配置操作的开关网络。 镇流器还包括一个控制电路和两个灯控制开关。 控制电路连接到交换网络，并根据交换网络的交换配置，通过相应的输出终端提供相应的控制信号。 每个灯控制开关与其灯并联并连接到相应的输出端。 第一灯控制开关连接到镇流器电源，并且根据第一控制信号向第一灯供电或不提供电源。 第二灯控制开关连接到第一灯控制开关并接地，并且根据第二控制信号向第二灯供电或不提供电源。

公开(公告)号：US20140001971A1

公开(公告)日：2014-01-02

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。

公开(公告)号：US08569966B2

公开(公告)日：2013-10-29

申请号：US13302075

申请日：2011-11-22

Applicant: Nitin Kumar ,  Shashank Bakre ,  Markus Ziegler

Inventor： Nitin Kumar ,  Shashank Bakre ,  Markus Ziegler

IPC: H05B37/02 ,  H05B41/36

CPC classification number: H05B41/042 ,  H05B41/2806 ,  Y02B20/22

Abstract: A ballast to energize a lamp is provided. The ballast comprises a buck converter connected to an inverter via a switching component. The buck converter includes a transistor, a capacitor, a diode, and an inductor. The switching component has a predetermined breakover voltage value and is configured to provide a start up signal to the inverter when voltage at the switching component increases to the predetermined breakover voltage value. A control circuit is configured to monitor the voltage at the switching component while the voltage at the switching component increases to the predetermined breakover voltage, and is configured to generate a gate drive pulse at a gate terminal of the transistor when the voltage at the switching component reaches a predetermined voltage that is less than the breakover voltage of the switching component.

Abstract translation: 提供了一个用于激励灯的镇流器。 镇流器包括通过开关部件连接到逆变器的降压转换器。 降压转换器包括晶体管，电容器，二极管和电感器。 开关部件具有预定的分解电压值，并且被配置为当开关部件的电压增加到预定的转折电压值时，向逆变器提供启动信号。 控制电路被配置为在切换部件处的电压升高到预定的断开电压时监视开关部件的电压，并且被配置为当开关部件的电压为阈值时，在晶体管的栅极端产生栅极驱动脉冲 达到小于开关部件的断流电压的预定电压。

公开(公告)号：US20120206059A1

公开(公告)日：2012-08-16

申请号：US13024443

申请日：2011-02-10

Applicant: Nitin Kumar ,  Shashank Bakre ,  Thomas J. Schalton

Inventor： Nitin Kumar ,  Shashank Bakre ,  Thomas J. Schalton

IPC: H05B41/24

CPC classification number: H05B41/2827 ,  H02M7/53832 ,  H05B41/42 ,  Y02B20/185

Abstract: A two level lighting ballast is provided, which includes a self-oscillating inverter circuit and a control circuit. The inverter includes an input; an output to selectively provide current to energize a lamp; a switching circuit operating at a switching frequency; a feedback transformer; and an impedance component. The feedback transformer is connected to the output, and drives the switching circuit based on the lamp current. The impedance component is connected in parallel with the feedback transformer, and is operated by the control circuit. When the control circuit enables the impedance component, the switching circuit operates in a first frequency range, and a first lamp current is provided. When the control circuit disables the impedance component, the switching circuit operates in a second frequency range, and a second lamp current is provided. The first frequency range is lower than the second, and the first lamp current is greater than the second.

Abstract translation: 提供了两级照明镇流器，其包括自振荡逆变器电路和控制电路。 逆变器包括一个输入端; 输出以选择性地提供电流以激励灯; 以开关频率工作的开关电路; 反馈变压器; 和阻抗分量。 反馈变压器连接到输出，并根据灯电流驱动开关电路。 阻抗元件与反馈变压器并联，由控制电路工作。 当控制电路使能阻抗分量时，开关电路在第一频率范围内工作，并提供第一灯电流。 当控制电路禁止阻抗分量时，开关电路在第二频率范围内工作，并提供第二灯电流。 第一个频率范围低于第二个频率范围，第一个灯电流大于第二个。

公开(公告)号：US20100301759A1

公开(公告)日：2010-12-02

申请号：US12474141

申请日：2009-05-28

Applicant: Shashank Bakre ,  Nitin Kumar

Inventor： Shashank Bakre ,  Nitin Kumar

IPC: H05B39/04

CPC classification number: H05B41/295 ,  H05B41/2828 ,  H05B41/2855 ,  H05B41/2985 ,  Y02B20/186

Abstract: 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.

Abstract translation: 公开了一种用于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进行重启的重启电路。 电子镇流器包括灯丝健康检查电路，用于通过所监视的灯的灯丝将第一电流提供到镇流器的控制器。 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使第一电流减小一个瞬时时间段，导致控制器重新启动镇流器。

公开(公告)号：US08547029B2

公开(公告)日：2013-10-01

申请号：US13352429

申请日：2012-01-18

Applicant: Nitin Kumar ,  Shashank Bakre ,  Driss Baba

Inventor： Nitin Kumar ,  Shashank Bakre ,  Driss Baba

IPC: H05B37/00

CPC classification number: H05B41/3927

Abstract: A ballast for dimming a lamp is provided. The ballast includes an inverter circuit for providing a lamp current for energizing the lamp and a dim interface for receiving an input indicative of a selected lighting level. A control circuit is connected to the dim interface for generating a pulse-width-modulated signal having a duty cycle corresponding to the selected lighting level. A switching network is connected to the control circuit for receiving the pulse-width-modulated signal. The switching network operates between a conductive state and a non-conductive state as a function of the pulse-width-modulated signal. An impedance device is connected across the switching network and is configured for connecting in series with the lamp so that the impedance device receives the lamp current when the switching network is operating in the non-conductive state and the lamp current bypasses the capacitor when the switching network is operating in the conductive state.

Abstract translation: 提供了用于调光灯的镇流器。 镇流器包括用于提供用于激励灯的灯电流的逆变器电路和用于接收指示所选择的照明电平的输入的暗接口。 控制电路连接到暗接口，用于产生具有对应于所选择的照明电平的占空比的脉冲宽度调制信号。 开关网络连接到用于接收脉冲宽度调制信号的控制电路。 开关网络作为脉冲宽度调制信号的函数在导通状态和非导通状态之间工作。 阻抗装置连接在开关网络两端，被配置为与灯串联连接，使得阻抗装置在开关网络工作在非导通状态时接收灯电流，并且当电流切换时灯电流旁路电容器 网络工作在导通状态。

公开(公告)号：US08487555B2

公开(公告)日：2013-07-16

申请号：US13105095

申请日：2011-05-11

Applicant: Nitin Kumar ,  Shashank Bakre

Inventor： Nitin Kumar ,  Shashank Bakre

IPC: H05B37/02

CPC classification number: H05B41/42 ,  H05B37/0263

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

Abstract translation: 提供了一种用于选择性地操作两个灯的双电平镇流器。 镇流器包括具有连接到开关网络的输入端和输出端的控制电路，该输出端基于开关网络的状态提供特定的控制信号。 镇流器还包括相应的灯控制开关，每个具有相应的输出。 第一个开关连接到输出和镇流器电源。 在其第一个状态下，它将镇流器电源连接到其第一个输出端，在其第二个状态下，将镇流器电源连接到其第二个输出端。 第二个开关连接到输出和地。 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。 每个灯控制开关的状态取决于控制电路产生的控制信号。