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    • 2. 发明授权
    • Electronic ballast and method for providing a DC voltage component during lamp startup
    • 电子镇流器和在启动灯时提供直流电压分量的方法
    • US08638039B2
    • 2014-01-28
    • US12890430
    • 2010-09-24
    • Jun KumagaiNaoki KomatuNobuo UkitaKazuhiko Harada
    • Jun KumagaiNaoki KomatuNobuo UkitaKazuhiko Harada
    • H05B37/02
    • H05B41/388H05B41/2888Y02B20/204
    • A discharge lamp ballast and method of operation are provided for generating a DC component in an output voltage during a lamp starting operation having a predetermined duration. The ballast includes an inverter having four switches arranged in a full-bridge configuration, a resonant circuit having a resonant frequency, and a control circuit. The method includes a step of sweeping an inverter operating frequency within a predetermined frequency range including the resonant frequency, wherein a high voltage is generated for igniting the lamp. The method further includes periodically and alternately repeating a first state of turning on a first set of diagonally positioned switching elements and turning off a second set of diagonally positioned switching elements, and a second state of turning on only one of the second set of switching elements and turning off the remaining three switching elements, respectively.
    • 提供放电灯镇流器和操作方法,用于在具有预定持续时间的灯起动操作期间产生输出电压中的直流分量。 镇流器包括具有以全桥配置布置的四个开关的逆变器,具有谐振频率的谐振电路和控制电路。 该方法包括在包括谐振频率的预定频率范围内扫描逆变器工作频率的步骤,其中产生用于点亮灯的高电压。 该方法进一步包括周期地且交替地重复第一状态,使第一组对角定位的开关元件接通,并且断开第二组对角定位的开关元件;以及第二状态,仅打开第二组开关元件中的一个 并分别关闭其余的三个开关元件。
    • 4. 发明授权
    • Discharge lamp ballast with feedback current control during an electrode heating operation
    • 在电极加热操作期间具有反馈电流控制的放电灯镇流器
    • US08502475B2
    • 2013-08-06
    • US12711756
    • 2010-02-24
    • Nobutoshi MatsuzakiJun KumagaiSatoru Nagata
    • Nobutoshi MatsuzakiJun KumagaiSatoru Nagata
    • H05B37/02
    • H02M1/4225H02M7/53871H02M2001/007H02M2001/4291H05B41/2883H05B41/382Y02B20/204Y02B70/126
    • A discharge lamp ballast is provided with a feedback control operation to provide optimal lamp current flow during an electrode heating operation. A startup circuit coupled together with a discharge lamp between output terminals of a DC-AC power converter having a plurality of switches. The startup circuit generates a high voltage to ignite the lamp. A lamp current sensor detects an amplitude of an output current to the lamp. A control circuit controls the switches in accordance with each of a plurality of control operations including a startup operation to ignite the lamp using the high voltage generated by the startup circuit, an electrode heating operation wherein an operating frequency of the switches is controlled to set the amplitude of the detected output current to a predetermined target current amplitude, and a normal operation wherein the operating frequency is reduced to maintain stable lighting of the lamp.
    • 放电灯镇流器具有反馈控制操作,以在电极加热操作期间提供最佳的灯电流。 在具有多个开关的DC-AC电力转换器的输出端子之间与放电灯耦合在一起的启动电路。 启动电路产生高电压以点亮灯。 灯电流传感器检测到灯的输出电流的幅度。 控制电路根据多个控制操作中的每一个控制开关,包括使用由启动电路产生的高电压点亮灯的启动操作;电极加热操作,其中开关的工作频率被控制以设定 检测出的输出电流的幅度达到预定的目标电流幅度,以及正常操作,其中工作频率被降低以维持灯的稳定照明。
    • 7. 发明授权
    • Discharge lamp lighting apparatus, luminaire and illumination system
    • 放电灯照明装置,灯具和照明系统
    • US07425802B2
    • 2008-09-16
    • US11568142
    • 2005-04-19
    • Jun KumagaiSatoru NagataMinoru MaeharaNaoki Komatsu
    • Jun KumagaiSatoru NagataMinoru MaeharaNaoki Komatsu
    • G05F1/00
    • H05B41/288H05B41/2883H05B41/2885H05B41/36H05B41/384Y02B20/204Y02B20/206Y10S315/05Y10S315/07
    • There is provided a high-intensity discharge lamp lighting apparatus to be loaded with a plurality of types of high-intensity discharge lamps and connected with any one of the lamps to be lighted, and the apparatus comprises a power conversion circuit for converting power supplied from a DC power source to supply the power to a high-intensity discharge lamp and a lighting control circuit for controlling the supply power of the power conversion circuit, wherein the type of the connected high-pressure discharge lamp is determined based upon a change rate of an electric characteristic of the high-intensity discharge lamp during a specific period, and the connected high-intensity discharge lamp is lighted with a desired electric characteristic selected based upon the determination result, thereby enabling discrimination of types of rated power of the plurality of types of lamps by the same detection method and the same control method irrespective of states in starting of the lamps, and by enabling the discrimination before stable lighting of the lamp, it is possible to start the discharge lamp with little stress applied to the discharge lamp.
    • 提供了一种高强度放电灯点亮装置,其装载有多种类型的高强度放电灯,并与要点亮的灯中的任一种相连接,该装置包括一个电力转换电路,用于将从 用于向高强度放电灯供电的直流电源和用于控制电力转换电路的供电的照明控制电路,其中连接的高压放电灯的类型基于 在特定时段内的高强度放电灯的电特性,并且连接的高强度放电灯以根据确定结果选择的期望电特性点亮,从而能够区分多种类型的额定功率类型 通过相同的检测方法和相同的控制方法,而不管启动灯的状态如何 能够在灯的稳定点亮之前进行鉴别,可以以很小的压力施加到放电灯来启动放电灯。
    • 8. 发明授权
    • High-voltage discharge lamp lighting device and lighting fixture
    • 高压放电灯照明装置及照明灯具
    • US08593077B2
    • 2013-11-26
    • US12994469
    • 2009-05-12
    • Jun KumagaiNaoki Komatsu
    • Jun KumagaiNaoki Komatsu
    • H05B37/00
    • H05B41/2888H05B41/2923Y02B20/202
    • A device includes a direct current power circuit configured to convert an alternating current voltage from an alternating current power source into a direct current voltage, an output unit configured to convert a direct current from the direct current power circuit into a square wave alternating current whose polarity is inverted at a prescribed frequency and to supply the square wave alternating current to a high-pressure discharge lamp, a controller, and an anomaly detector configured to detect an instantaneous voltage drop of the alternating current power source. When the anomaly detector detects the instantaneous voltage drop, the controller switches from a normal lighting mode of controlling the output unit to supply the high-pressure discharge lamp with a square wave alternating current to a lighting maintained mode of controlling the output unit to supply the high-pressure discharge lamp with a square wave alternating current having a lower frequency than the square wave alternating current in the normal lighting mode. In this way, it is possible to maintain lighting of the high-pressure discharge lamp even upon occurrence of an instantaneous power failure, an instantaneous voltage drop, and the like.
    • 一种设备包括直流电源电路,其被配置为将来自交流电源的交流电压转换成直流电压;输出单元,被配置为将来自直流电源电路的直流转换成方波交流电,其极性 以规定频率反转,并将方波交流电流提供给高压放电灯,控制器和异常检测器,该异常检测器被配置为检测交流电源的瞬时电压降。 当异常检测器检测到瞬时电压降时,控制器从控制输出单元的正常点亮模式切换,将方波交流电的高压放电灯提供给控制输出单元的照明维持模式,以提供 具有在正常点亮模式下具有比方波交流电流低的频率的方波交流电的高压放电灯。 以这种方式,即使发生瞬时停电,瞬时电压降等,也可以保持高压放电灯的点亮。
    • 9. 发明授权
    • Electronic ballast with lamp flicker suppression during start-to-steady state transition
    • 电子镇流器在启动到稳定状态转换期间具有灯闪烁抑制
    • US08299723B2
    • 2012-10-30
    • US12606247
    • 2009-10-27
    • Satoru NagataJun KumagaiNobutoshi Matsuzaki
    • Satoru NagataJun KumagaiNobutoshi Matsuzaki
    • H05B37/00
    • H05B41/2883H05B41/388
    • An electronic ballast is provided for powering a discharge lamp and suppressing lamp flicker during startup transition. A power converter receives DC input power and converts it into an AC power output. A resonant circuit is coupled with the lamp and also between output terminals of the power converter. A controller controls the power converter with respect to particular modes of operation. The controller in a starting operation sets the output frequency of the power converter to a predetermined start frequency upon lamp startup to make the lamp begin discharging. The controller shifts from the starting operation to steady-state operation by setting the output frequency of the power converter at a predetermined steady-state frequency lower than the start frequency. The predetermined start frequency is set to a frequency identical or close to 1/(an odd whole number) of the resonant frequency of the resonant circuit with the lamp unlit, and also to a frequency identical or close to the resonant frequency of the resonant circuit with the discharge lamp lit. The start frequency is sufficient to make the discharge lamp start discharging, and to raise a temperature of each electrode of the discharge lamp after lamp startup and by an end of the starting operation.
    • 提供电子镇流器用于为放电灯供电并抑制启动转换期间的灯闪烁。 电源转换器接收直流输入电源并将其转换为交流电源输出。 谐振电路与灯并且在功率转换器的输出端子之间耦合。 控制器相对于特定操作模式控制功率转换器。 启动时的控制器在灯启动时将功率转换器的输出频率设定为预定的起始频率,使灯开始放电。 通过将功率转换器的输出频率设定在低于起始频率的预定的稳态频率,控制器从启动操作转移到稳态操作。 将预定起动频率设定为与灯不亮的谐振电路的谐振频率的1 /(奇数整数)相同或接近的频率,并且设定为与谐振电路的谐振频率相同或接近的频率 放电灯点亮。 启动频率足以使放电灯开始放电,并且在灯启动之后和启动操作结束时提高放电灯的每个电极的温度。
    • 10. 发明申请
    • ELECTRONIC BALLAST AND METHOD FOR PROVIDING A DC VOLTAGE COMPONENT DURING LAMP STARTUP
    • 电子镇流器和在灯启动期间提供直流电压元件的方法
    • US20110074307A1
    • 2011-03-31
    • US12890430
    • 2010-09-24
    • Jun KumagaiNaoki KomatuNobuo UkitaKazuhiko Harada
    • Jun KumagaiNaoki KomatuNobuo UkitaKazuhiko Harada
    • H05B41/26H05B41/24
    • H05B41/388H05B41/2888Y02B20/204
    • A discharge lamp ballast and method of operation are provided for generating a DC component in an output voltage during a lamp starting operation having a predetermined duration. The ballast includes an inverter having four switches arranged in a full-bridge configuration, a resonant circuit having a resonant frequency, and a control circuit. The method includes a step of sweeping an inverter operating frequency within a predetermined frequency range including the resonant frequency, wherein a high voltage is generated for igniting the lamp. The method further includes periodically and alternately repeating a first state of turning on a first set of diagonally positioned switching elements and turning off a second set of diagonally positioned switching elements, and a second state of turning on only one of the second set of switching elements and turning off the remaining three switching elements, respectively.
    • 提供放电灯镇流器和操作方法,用于在具有预定持续时间的灯起动操作期间产生输出电压中的直流分量。 镇流器包括具有以全桥配置布置的四个开关的逆变器,具有谐振频率的谐振电路和控制电路。 该方法包括在包括谐振频率的预定频率范围内扫描逆变器工作频率的步骤,其中产生用于点亮灯的高电压。 该方法进一步包括周期地且交替地重复第一状态,使第一组对角定位的开关元件接通,并且断开第二组对角定位的开关元件;以及第二状态,仅打开第二组开关元件中的一个 并分别关闭其余的三个开关元件。