公开(公告)号：US08878453B1

公开(公告)日：2014-11-04

申请号：US13917362

申请日：2013-06-13

申请人： Ayan Choudhury ,  Arindam Chakraborty ,  Shashank Bakre

发明人： Ayan Choudhury ,  Arindam Chakraborty ,  Shashank Bakre

IPC分类号： H05B37/02 ,  H05B41/285

CPC分类号： H05B41/3925

摘要： A ballast comprises an inverter circuit for connecting to a lamp and providing power thereto. The ballast includes a current feedback circuit connected to the inverter circuit and the lamp for controlling the frequency of the inverter circuit based on current feedback from the lamp. The ballast includes a switch circuit connected to the current feedback circuit and the lamp for enabling the current feedback circuit when the lamp is in a normal operating state and disabling the current feedback circuit when the lamp is in a low current operating state.

摘要翻译： 镇流器包括用于连接到灯并向其供电的逆变器电路。 镇流器包括连接到逆变器电路的电流反馈电路和用于基于来自灯的电流反馈来控制逆变器电路的频率的灯。 镇流器包括连接到电流反馈电路和灯的开关电路，用于当灯处于正常工作状态时使能电流反馈电路，并且当灯处于低电流工作状态时禁止电流反馈电路。

公开(公告)号：US08698428B2

公开(公告)日：2014-04-15

申请号：US13226922

申请日：2011-09-07

申请人： Nitin Kumar ,  Shashank Bakre ,  Driss Baba ,  Thomas Schalton

发明人： Nitin Kumar ,  Shashank Bakre ,  Driss Baba ,  Thomas Schalton

IPC分类号： H05B37/02

CPC分类号： H05B41/40

摘要： A three light level electronic ballast, and methods of operating lamps at three light levels, are provided. The ballast includes a rectifier, a power factor correction circuit, an inverter circuit, a first circuit, a second circuit, and a control circuit. The rectifier receives an AC voltage signal and produces a rectified voltage signal, which the power factor correction circuit receives and uses to provide a corrected voltage signal. The inverter circuit receives the corrected voltage signal and provides an energizing signal to power at least two lamps. The first circuit selectively reduces the current applied to the lamps by the energizing signal. The second circuit selectively prevents the second lamp from being energized by the energizing signal. The control circuit controls the first circuit and the second circuit.

摘要翻译： 提供三个光级电子镇流器，以及三个灯级操作灯的方法。 镇流器包括整流器，功率因数校正电路，逆变器电路，第一电路，第二电路和控制电路。 整流器接收交流电压信号并产生整流电压信号，功率因数校正电路接收并用于提供校正的电压信号。 逆变器电路接收经校正的电压信号并提供通电信号以供电至少两个灯。 第一电路通过激励信号选择性地降低施加到灯的电流。 第二电路选择性地防止第二灯被激励信号激励。 控制电路控制第一电路和第二电路。

公开(公告)号：US08664854B2

公开(公告)日：2014-03-04

申请号：US13278263

申请日：2011-10-21

申请人： Nitin Kumar ,  Robert Martin ,  Shashank Bakre

发明人： Nitin Kumar ,  Robert Martin ,  Shashank Bakre

IPC分类号： H01J1/20 ,  H01J19/40

CPC分类号： H01J65/048 ,  H01J61/28 ,  H01J61/523

摘要： A electrodeless lamp including a fluorescent discharge vessel, a tip, an amalgam, a lamp core, and a heater. The vessel contains a gas having a partial vapor pressure and a fluorescent material. The tip has an inner end engaging the vessel, and an opening in communication with the gas. The amalgam is positioned within the opening, in heat transfer relation with the tip. When the temperature of the amalgam decreases, mercury vapor in the gas condensates onto the amalgam, causing a decrease in the partial vapor pressure of the gas. The opposite occurs when the amalgam temperature increases. The lamp core generates a magnetic flux, causing an electrical discharge in the gas. The heater includes a positive temperature coefficient connected to a winding of the lamp core. The heater is in heat transfer relation with the tip and heats the tip when the electrodeless lamp is in a dimming mode.

摘要翻译： 一种无电极灯，包括荧光放电容器，尖端，汞齐，灯芯和加热器。 容器含有具有部分蒸气压的气体和荧光材料。 尖端具有接合容器的内端和与气体连通的开口。 汞齐位于开口内，与尖端的热传递关系。 当汞齐的温度降低时，气体中的汞蒸气冷凝到汞齐上，导致气体的部分蒸气压降低。 当汞合金温度升高时，会出现相反的情况。 灯芯产生磁通，引起气体中的放电。 加热器包括连接到灯芯的绕组的正温度系数。 当无电极灯处于调光模式时，加热器与尖端传热关系，并加热尖端。

公开(公告)号：US20130181627A1

公开(公告)日：2013-07-18

申请号：US13352429

申请日：2012-01-18

申请人： Nitin Kumar ,  Shashank Bakre ,  Driss Baba

发明人： Nitin Kumar ,  Shashank Bakre ,  Driss Baba

IPC分类号： H05B37/02

CPC分类号： H05B41/3927

摘要： 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.

摘要翻译： 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：US08410713B2

公开(公告)日：2013-04-02

申请号：US12986596

申请日：2011-01-07

申请人： Nitin Kumar ,  Shashank Bakre ,  Christian Breuer

发明人： Nitin Kumar ,  Shashank Bakre ,  Christian Breuer

IPC分类号： H05B41/16 ,  H05B41/24 ,  H05B37/00 ,  H05B39/00 ,  H05B41/14 ,  H05B37/02 ,  H05B39/02 ,  H05B39/04

CPC分类号： H05B41/2855

摘要： A lamp driver circuit to selectively energize one or more lamps is provided. The inverter circuit has a transformer with primary and secondary windings to provide voltage to the lamps. A filter is connected to the primary winding to receive a primary winding signal representative of the voltage across the primary winding. The primary winding signal has a frequency spectrum and the filter detects a particular characteristic of the frequency spectrum that is indicative of an end of life (EOL) condition of the one or more lamps. A control circuit is connected to the inverter circuit and to the filter. The control circuit is configured to discontinue energizing of the one or more lamps by the inverter circuit when the particular characteristic of the frequency spectrum of the primary winding signal is detected by the filter.

摘要翻译： 提供了用于选择性地激励一个或多个灯的灯驱动器电路。 逆变器电路具有带有初级和次级绕组的变压器，以向灯提供电压。 滤波器连接到初级绕组以接收表示初级绕组两端的电压的初级绕组信号。 初级绕组信号具有频谱，并且滤波器检测指示一个或多个灯的寿命终止（EOL）状态的频谱的特定特性。 控制电路连接到逆变器电路和滤波器。 控制电路被配置为当通过滤波器检测到初级绕组信号的频谱的特定特性时，通过逆变器电路中断一个或多个灯的通电。

公开(公告)号：US20120313538A1

公开(公告)日：2012-12-13

申请号：US13155104

申请日：2011-06-07

申请人： Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre

发明人： Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre

IPC分类号： H05B37/02

CPC分类号： H05B41/2806 ,  Y02B20/22

摘要： 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.

摘要翻译： 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：US20120286682A1

公开(公告)日：2012-11-15

申请号：US13105095

申请日：2011-05-11

申请人： Nitin Kumar ,  Shashank Bakre

发明人： Nitin Kumar ,  Shashank Bakre

IPC分类号： H05B37/02

CPC分类号： H05B41/42 ,  H05B37/0263

摘要： 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.

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。 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。

公开(公告)号：US20120248983A1

公开(公告)日：2012-10-04

申请号：US13077063

申请日：2011-03-31

申请人： Nitin Kumar ,  Shashank Bakre

发明人： Nitin Kumar ,  Shashank Bakre

IPC分类号： H05B37/02

CPC分类号： H05B41/40 ,  H05B41/42

摘要： A lighting system converter circuit of a lamp power converter to selectively operate a plurality of lamps connected thereto is provided. The lighting system converter circuit includes a first impedance circuit and a second impedance circuit. Each impedance circuit includes an input terminal, an impedance component, and a switching network. The impedance components are each configured to connect in series with the lamps. Each input terminal is configured to receive a control signal that indicates a state of a switch. Each control signal has a first logic level, indicating the switch is non-conductive, and a second logic level, indicating the switch is conductive. Each switching network is connected to its respective input terminal and in parallel with its respective impedance component, and is configured to selectively operate between a conductive state and a non-conductive state, as a function of the logic level of its respective control signal.

摘要翻译： 提供了一种用于选择性地操作连接到其上的多个灯的灯功率转换器的照明系统转换器电路。 照明系统转换器电路包括第一阻抗电路和第二阻抗电路。 每个阻抗电路包括输入端子，阻抗部件和开关网络。 阻抗元件各自被配置为与灯串联。 每个输入端被配置为接收指示开关状态的控制信号。 每个控制信号具有第一逻辑电平，指示开关不导通，并且指示开关是导通的第二逻辑电平。 每个开关网络连接到其相应的输入端并与其相应的阻抗分量并联，并且被配置为根据其各自的控制信号的逻辑电平，在导通状态和非导通状态之间有选择地操作。

公开(公告)号：US08937437B2

公开(公告)日：2015-01-20

申请号：US13917414

申请日：2013-06-13

申请人： Nitin Kumar ,  Shashank Bakre

发明人： Nitin Kumar ,  Shashank Bakre

IPC分类号： H05B41/36 ,  H05B37/02

CPC分类号： H05B41/2988

摘要： 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.

摘要翻译： 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：US08836240B2

公开(公告)日：2014-09-16

申请号：US13539402

申请日：2012-06-30

申请人： Nitin Kumar ,  Markus Ziegler ,  Robert Martin ,  Shashank Bakre

发明人： Nitin Kumar ,  Markus Ziegler ,  Robert Martin ,  Shashank Bakre

IPC分类号： H05B37/02

CPC分类号： H05B41/2883 ,  H05B41/36

摘要： 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.

摘要翻译： 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。