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    • 22. 发明申请
    • MULTIPLE LAMP LIGHTING LEVEL BALLAST FOR SERIES CONNECTED LAMPS
    • 多灯系列照明灯系列
    • WO2013003446A1
    • 2013-01-03
    • PCT/US2012/044377
    • 2012-06-27
    • OSRAM SYLVANIA Inc.KUMAR, NitinBAKRE, ShashankSCHALTON, Thomas J.
    • KUMAR, NitinBAKRE, ShashankSCHALTON, Thomas J.
    • H05B37/02H05B41/40H05B41/28
    • H05B41/2806H05B37/0209Y02B20/22
    • 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.
    • 提供选择性地操作多个灯的镇流器。 镇流器包括能够在多个开关配置中操作的交换网络。 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力。
    • 23. 发明申请
    • DIMMING BALLAST FOR ELECTRODELESS LAMP
    • 用于无电极灯的调光球
    • WO2012170137A1
    • 2012-12-13
    • PCT/US2012/036900
    • 2012-05-08
    • OSRAM SYLVANIA INC.KUMAR, NitinZIEGLER, MarkusBAKRE, Shashank
    • KUMAR, NitinZIEGLER, MarkusBAKRE, Shashank
    • H05B41/288
    • H05B41/2806Y02B20/22
    • 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.
    • 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,以在选定的照明水平上激励灯。 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整占空比,产生具有在所选择的照明电平下对灯进行激励的幅度的输出。