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    • 11. 发明申请
    • High pressure discharge lamp lighting device and luminaire
    • 高压放电灯照明装置和灯具
    • US20100039039A1
    • 2010-02-18
    • US12461405
    • 2009-08-11
    • Takeshi GorikiTakeshi KamoiNobutoshi MatsuzakiDaisuke Yamahara
    • Takeshi GorikiTakeshi KamoiNobutoshi MatsuzakiDaisuke Yamahara
    • H05B41/36
    • H05B41/388H05B41/288Y02B20/204
    • A high pressure discharge lamp lighting device, includes: a DC/DC converter for converting a power source voltage of a DC power source into a desired DC voltage and stably lighting a high pressure discharge lamp; a DC/AC inverter for inverting the DC voltage into an AC voltage; and a starting pulse generating circuit for generating a high voltage required for the start-up of the high pressure discharge lamp. Further, the high pressure discharge lamp lighting device includes a lighting state decision unit for deciding a lighted/unlighted state of the high pressure discharge lamp; and an operating state switching control unit for switching the operating state of at least one of the DC/DC converter, the DC/AC inverter, and the starting pulse generating circuit to another operating state, depending on a predetermined operation phase out of the start-up, stable lighting and power interrupt phases of the high pressure discharge lamp.
    • 一种高压放电灯点灯装置,包括:DC / DC转换器,用于将直流电源的电源电压转换为期望的直流电压并稳定点亮高压放电灯; 用于将DC电压反相为AC电压的DC / AC逆变器; 以及用于产生高压放电灯启动所需的高电压的起动脉冲发生电路。 此外,高压放电灯点亮装置包括:用于判定高压放电灯的点亮状态的发光状态判定部; 以及操作状态切换控制单元,用于根据预定的操作阶段从开始切换DC / DC转换器,DC / AC逆变器和起动脉冲发生电路中的至少一个的操作状态到另一个操作状态 - 高压放电灯的稳定的照明和电源中断阶段。
    • 12. 发明授权
    • Electronic ballast with controlled filament preheating using half-wave lamp current detection
    • 使用半波灯电流检测的电子镇流器,具有受控灯丝预热
    • US08143796B2
    • 2012-03-27
    • US12606631
    • 2009-10-27
    • Daisuke YamaharaNaoki Komatsu
    • Daisuke YamaharaNaoki Komatsu
    • H05B37/02
    • H05B41/2887H05B41/3928Y10S315/05
    • An electronic ballast is provided for controlled preheating of filaments in a discharge lamp. A power converter has a plurality of switching elements and converts DC power from a DC power source into AC power for the lamp. A starting circuit generates a high voltage for starting the lamp. A half-wave discharge detecting circuit detects an absolute value for each polarity peak of a lamp current, calculates an asymmetrical current value from the detected peaks with respect to a predetermined current threshold, and detects a half-wave discharge of the lamp wherein an absolute value of the asymmetrical current value is equal to or more than the current threshold for a predetermined determination time. A control circuit regulates on-times for the switching elements in an filament heating operation wherein the power converting circuit provides a high output frequency for heating each filament of the discharge lamp, and further regulates the on-times to reduce half-wave discharge detected during the filament heating operation.
    • 提供电子镇流器用于放电灯中灯丝的受控预热。 电力转换器具有多个开关元件,并且将来自直流电源的直流电力转换成用于灯的交流电力。 启动电路产生用于启动灯的高电压。 半波放电检测电路检测灯电流的每个极性峰值的绝对值,根据检测到的峰值相对于预定电流阈值计算不对称电流值,并检测灯的半波放电,其中绝对 对于预定的确定时间,非对称电流值的值等于或大于当前阈值。 控制电路在灯丝加热操作中调节开关元件的接通时间,其中功率转换电路提供用于加热放电灯的每个灯丝的高输出频率,并且进一步调节接通时间以减少检测到的半波放电 灯丝加热操作。
    • 13. 发明申请
    • ELECTRONIC BALLAST WITH CONTROLLED LAMP PREHEATING
    • 具有控制灯预热的电子镇流器
    • US20100109542A1
    • 2010-05-06
    • US12605450
    • 2009-10-26
    • Naoki KomatsuDaisuke Yamahara
    • Naoki KomatsuDaisuke Yamahara
    • H05B41/36
    • H05B41/2882H05B41/382Y02B20/204
    • An electronic ballast provides controlled preheating for a discharge lamp. A power converting circuit receives a DC power input and converts it into an AC power output. A starting circuit coupled to the power converting circuit generates a high voltage for starting the lamp. A control circuit controls the power converting circuit to generate AC power output to the lamp dependent on a mode of operation. A symmetry detecting circuit determines a positive-negative symmetrical state of the output power provided to the discharge lamp with respect to ground. The control circuit has a starting mode wherein the discharge lamp is triggered to start with a high voltage generated by the starting circuit, an electrode heating mode wherein the AC power output of the power converting circuit is controlled to a first frequency for heating each lamp electrode, and a steady-state mode wherein the AC power output of the power converting circuit is controlled to a second frequency for maintaining lighting of the discharge lamp. The control circuit shifts from the electrode heating mode to the steady-state mode when the symmetry detecting circuit determines that the AC power output is in a positive-negative symmetrical state in the electrode heating operation.
    • 电子镇流器为放电灯提供受控的预热。 电力转换电路接收直流电力输入并将其转换为交流电力输出。 耦合到功率转换电路的启动电路产生用于启动灯的高电压。 控制电路控制功率转换电路,以根据操作模式产生对灯的AC电力输出。 对称性检测电路确定相对于地面提供给放电灯的输出功率的正负对称状态。 控制电路具有启动模式,其中放电灯被触发以由起动电路产生的高电压开始;电极加热模式,其中功率转换电路的AC功率输出被控制到第一频率以加热每个灯电极 以及稳态模式,其中功率转换电路的AC功率输出被控制到用于维持放电灯点亮的第二频率。 当对称性检测电路在电极加热操作中确定AC功率输出处于正负对称状态时,控制电路从电极加热模式转换到稳态模式。
    • 14. 发明授权
    • Electronic ballast with controlled lamp preheating
    • 电子镇流器带控制灯预热
    • US08232741B2
    • 2012-07-31
    • US12605450
    • 2009-10-26
    • Naoki KomatsuDaisuke Yamahara
    • Naoki KomatsuDaisuke Yamahara
    • H05B37/02
    • H05B41/2882H05B41/382Y02B20/204
    • An electronic ballast provides controlled preheating for a discharge lamp. A power converting circuit receives a DC power input and converts it into an AC power output. A starting circuit coupled to the power converting circuit generates a high voltage for starting the lamp. A control circuit controls the power converting circuit to generate AC power output to the lamp dependent on a mode of operation. A symmetry detecting circuit determines a positive-negative symmetrical state of the output power provided to the discharge lamp with respect to ground. The control circuit has a starting mode wherein the discharge lamp is triggered to start with a high voltage generated by the starting circuit, an electrode heating mode wherein the AC power output of the power converting circuit is controlled to a first frequency for heating each lamp electrode, and a steady-state mode wherein the AC power output of the power converting circuit is controlled to a second frequency for maintaining lighting of the discharge lamp. The control circuit shifts from the electrode heating mode to the steady-state mode when the symmetry detecting circuit determines that the AC power output is in a positive-negative symmetrical state in the electrode heating operation.
    • 电子镇流器为放电灯提供受控的预热。 电力转换电路接收直流电力输入并将其转换为交流电力输出。 耦合到功率转换电路的启动电路产生用于启动灯的高电压。 控制电路控制功率转换电路,以根据操作模式产生对灯的AC电力输出。 对称性检测电路确定相对于地面提供给放电灯的输出功率的正负对称状态。 控制电路具有启动模式,其中放电灯被触发以由起动电路产生的高电压开始;电极加热模式,其中功率转换电路的AC功率输出被控制到第一频率以加热每个灯电极 以及稳态模式,其中功率转换电路的AC功率输出被控制到用于维持放电灯点亮的第二频率。 当对称性检测电路在电极加热操作中确定AC功率输出处于正负对称状态时,控制电路从电极加热模式转换到稳态模式。
    • 15. 发明申请
    • ELECTRONIC BALLAST WITH CONTROLLED FILAMENT PREHEATING USING HALF-WAVE LAMP CURRENT DETECTION
    • 使用半波电流检测的带控制光纤预热的电子镇流器
    • US20100109534A1
    • 2010-05-06
    • US12606631
    • 2009-10-27
    • Daisuke YamaharaNaoki Komatsu
    • Daisuke YamaharaNaoki Komatsu
    • H05B41/36
    • H05B41/2887H05B41/3928Y10S315/05
    • An electronic ballast is provided for controlled preheating of filaments in a discharge lamp. A power converter has a plurality of switching elements and converts DC power from a DC power source into AC power for the lamp. A starting circuit generates a high voltage for starting the lamp. A half-wave discharge detecting circuit detects an absolute value for each polarity peak of a lamp current, calculates an asymmetrical current value from the detected peaks with respect to a predetermined current threshold, and detects a half-wave discharge of the lamp wherein an absolute value of the asymmetrical current value is equal to or more than the current threshold for a predetermined determination time. A control circuit regulates on-times for the switching elements in an filament heating operation wherein the power converting circuit provides a high output frequency for heating each filament of the discharge lamp, and further regulates the on-times to reduce half-wave discharge detected during the filament heating operation.
    • 提供电子镇流器用于放电灯中灯丝的受控预热。 电力转换器具有多个开关元件,并且将来自直流电源的直流电力转换成用于灯的交流电力。 启动电路产生用于启动灯的高电压。 半波放电检测电路检测灯电流的每个极性峰值的绝对值,根据检测到的峰值相对于预定电流阈值计算不对称电流值,并且检测灯的半波放电,其中绝对 对于预定的确定时间,非对称电流值的值等于或大于当前阈值。 控制电路在灯丝加热操作中调节开关元件的接通时间,其中功率转换电路提供用于加热放电灯的每个灯丝的高输出频率,并且进一步调节接通时间以减少检测到的半波放电 灯丝加热操作。