公开(公告)号：US08299723B2

公开(公告)日：2012-10-30

申请号：US12606247

申请日：2009-10-27

申请人： Satoru Nagata ,  Jun Kumagai ,  Nobutoshi Matsuzaki

发明人： Satoru Nagata ,  Jun Kumagai ,  Nobutoshi Matsuzaki

IPC分类号： H05B37/00

CPC分类号： H05B41/2883 ,  H05B41/388

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100327776A1

公开(公告)日：2010-12-30

申请号：US12864929

申请日：2009-01-28

申请人： Akira Yufuku ,  Hiroyasu Eriguchi ,  Takeshi Goriki ,  Takeshi Kamoi ,  Jun Kumagai ,  Naoki Komatsu ,  Nobutoshi Matsuzaki ,  Satoru Nagata ,  Daisuke Yamahara

发明人： Akira Yufuku ,  Hiroyasu Eriguchi ,  Takeshi Goriki ,  Takeshi Kamoi ,  Jun Kumagai ,  Naoki Komatsu ,  Nobutoshi Matsuzaki ,  Satoru Nagata ,  Daisuke Yamahara

IPC分类号： H05B41/36

CPC分类号： H05B41/042 ,  H05B41/288 ,  Y10S315/07

摘要： A high pressure discharge lamp lighting device in this invention comprises a converter, an inverter, an igniter, a controller, and a pulse voltage detection circuit. The converter outputs the direct current voltage. The inverter converts the direct current voltage into the lighting voltage which is alternating current voltage, and applies the lighting voltage to the high pressure discharge lamp through an output terminal. The igniter is configured to output the pulse voltage superimposed on the lighting voltage, whereby the starting voltage is applied to the high pressure discharge lamp. The controller is configured to control the igniter to allow the igniter to superimpose the pulse voltage on the lighting voltage. The pulse voltage detection circuit detects the starting voltage to output the detection signal. The starting voltage regulation circuit regulates the starting voltage to the desired voltage value of the voltage on the basis of the detection signal.

摘要翻译： 本发明的高压放电灯点灯装置包括转换器，逆变器，点火器，控制器和脉冲电压检测电路。 转换器输出直流电压。 逆变器将直流电压转换为交流电压的点亮电压，并通过输出端子向高压放电灯施加点亮电压。 点火器被配置为输出叠加在点亮电压上的脉冲电压，由此将起始电压施加到高压放电灯。 控制器被配置为控制点火器以允许点火器将脉冲电压叠加在点亮电压上。 脉冲电压检测电路检测起始电压以输出检测信号。 起动电压调节电路基于检测信号将启动电压调节到电压的期望电压值。

公开(公告)号：US20100237794A1

公开(公告)日：2010-09-23

申请号：US12711756

申请日：2010-02-24

申请人： Nobutoshi Matsuzaki ,  Jun Kumagai ,  Satoru Nagata

发明人： Nobutoshi Matsuzaki ,  Jun Kumagai ,  Satoru Nagata

IPC分类号： H05B41/36

CPC分类号： H02M1/4225 ,  H02M7/53871 ,  H02M2001/007 ,  H02M2001/4291 ,  H05B41/2883 ,  H05B41/382 ,  Y02B20/204 ,  Y02B70/126

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100109543A1

公开(公告)日：2010-05-06

申请号：US12606248

申请日：2009-10-27

申请人： Jun Kumagai ,  Nobutoshi Matsuzaki ,  Satoru Nagata

发明人： Jun Kumagai ,  Nobutoshi Matsuzaki ,  Satoru Nagata

IPC分类号： H05B41/36

CPC分类号： H05B41/2883 ,  Y02B20/204

摘要： An electronic ballast is provided for powering a high-pressure discharge lamp. A power supply circuit receives an AC input and provides a DC output in response to the AC input. An inverter circuit having a plurality of switching elements converts the DC output into an AC signal for the lamp. An LC resonant circuit is coupled between the inverter circuit and the lamp. A control circuit controls the switching operation of the switching elements, with the switching control associated with various operating modes. In an electrical breakdown mode the switching elements are controlled at a first switching frequency effective to provide a first resonant voltage and produce electrical breakdown of the lamp from an unlit state. In a high frequency preheat mode the switching elements after startup of the lamp are controlled at a second switching frequency lower than the first switching frequency to provide a current for preheating lamp electrodes. In a rectangular wave lighting mode the switching elements after preheating of the lamp electrodes is controlled to supply a rectangular wave AC signal to the lamp and maintain steady state lighting.

摘要翻译： 提供电子镇流器用于为高压放电灯供电。 电源电路接收AC输入并响应于AC输入提供DC输出。 具有多个开关元件的逆变器电路将DC输出转换为用于灯的AC信号。 LC谐振电路耦合在逆变器电路和灯之间。 控制电路通过与各种操作模式相关的开关控制来控制开关元件的开关操作。 在电击穿模式中，开关元件被控制在有效提供第一谐振电压的第一开关频率，并且产生灯从未点亮状态的电击穿。 在高频预热模式中，灯启动后的开关元件被控制在比第一开关频率低的第二开关频率，以提供用于预热灯电极的电流。 在矩形波照明模式中，控制灯电极预热后的开关元件，以向灯提供矩形波AC信号并保持稳态照明。

公开(公告)号：US20100039039A1

公开(公告)日：2010-02-18

申请号：US12461405

申请日：2009-08-11

申请人： Takeshi Goriki ,  Takeshi Kamoi ,  Nobutoshi Matsuzaki ,  Daisuke Yamahara

发明人： Takeshi Goriki ,  Takeshi Kamoi ,  Nobutoshi Matsuzaki ,  Daisuke Yamahara

IPC分类号： H05B41/36

CPC分类号： H05B41/388 ,  H05B41/288 ,  Y02B20/204

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100013398A1

公开(公告)日：2010-01-21

申请号：US12410595

申请日：2009-03-25

申请人： Nobutoshi Matsuzaki ,  Hiroyasu Eriguchi ,  Takeshi Goriki ,  Takeshi Kamoi ,  Naoki Komatu ,  Jun Kumagai ,  Satoru Nagata ,  Daisuke Yamahara ,  Akira Yufuku

发明人： Nobutoshi Matsuzaki ,  Hiroyasu Eriguchi ,  Takeshi Goriki ,  Takeshi Kamoi ,  Naoki Komatu ,  Jun Kumagai ,  Satoru Nagata ,  Daisuke Yamahara ,  Akira Yufuku

IPC分类号： H05B41/36

CPC分类号： H05B41/042 ,  H05B41/2881 ,  Y02B20/204

摘要： A high-voltage discharge lamp lighting device provides a starting pulse voltage sufficient to turn on a high-voltage discharge lamp having terminal wire connections of variable length. A power conversion circuit is coupled to a commercial AC power source input and rectifies the AC input into a predetermined DC voltage output. A charging capacitor is coupled to the power conversion circuit. A full bridge circuit is coupled to the power conversion circuit and the charging capacitor and provides a rectangular wave AC output signal to a transformer primary winding circuit of at least a capacitor, a single switching element and a primary winding of a transformer. A low pulse voltage is induced in the primary winding and a transformer secondary winding is connected on one end to the high-voltage discharge lamp, wherein the low pulse voltage is stepped up to a high pulse voltage and applied to the high-voltage discharge lamp. A reference voltage is generated in a reference transformer winding representative of the high pulse voltage. A starting pulse equivalent value detection circuit is connected to the reference winding and detects a value associated with the reference voltage. A control circuit receives said value from said detection circuit, and variably controls at least one of a frequency of the single switching element or an ON impedance of the single switching element in association with said value, wherein said frequency or ON impedance is further associated with a starting pulse voltage sufficient to start the high-voltage discharge lamp.

摘要翻译： 高压放电灯点亮装置提供足以接通具有可变长度的端子线连接的高压放电灯的起始脉冲电压。 电力转换电路耦合到商用AC电源输入端，并将AC输入整流为预定的直流电压输出。 充电电容器耦合到功率转换电路。 全桥电路耦合到功率转换电路和充电电容器，并且向至少一个电容器，单个开关元件和变压器的初级绕组的变压器初级绕组电路提供矩形波交流输出信号。 在初级绕组中感应出低脉冲电压，变压器次级绕组的一端连接到高压放电灯，其中低脉冲电压升高到高脉冲电压并施加到高压放电灯 。 在代表高脉冲电压的参考变压器绕组中产生参考电压。 启动脉冲等效值检测电路连接到基准绕组，并检测与参考电压相关的值。 控制电路从所述检测电路接收所述值，并且与所述值相关联地可变地控制单个开关元件的频率或单个开关元件的导通阻抗中的至少一个，其中所述频率或导通阻抗进一步与 起动脉冲电压足以启动高压放电灯。