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公开(公告)号：US5059867A
公开(公告)日：1991-10-22
申请号：US505100
申请日：1990-04-03
IPC分类号： H05B41/231 , D01G31/00 , H05B41/18 , H05B41/282 , H05B41/288 , H05B41/38
CPC分类号： D01G31/00 , H05B41/2882 , H05B41/388 , Y02B20/204 , Y02P70/621 , Y02P70/623 , Y10S315/02 , Y10S315/07
摘要： A ballast circuit for operating a metal halide lamp by applying DC excitation during its start, glow and run modes is disclosed. The type and values of the circuit components of the ballast circuit are selected to provide automatic, sequential and desired transfer functions as the impedance value of the metal halide lamp transitions from its value occurring during the start, glow and run modes of operation. The ballast circuit has an input stage that is easily adapted to present a high power factor to the AC power source supplying the metal halide lamp. Further, the ballast circuit generates a signal for more easily starting the lamp and having a relatively high DC level upon which are developed pulse signals.
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公开(公告)号：US5917289A
公开(公告)日：1999-06-29
申请号：US897345
申请日：1997-07-21
IPC分类号： H05B41/282 , H05B41/285 , H05B37/02
CPC分类号： H05B41/2856 , H05B41/2825 , Y10S315/05 , Y10S315/07
摘要： A ballast circuit for a gas discharge lamp comprises a resonant load circuit including the lamp. A d.c.-to-a.c. converter circuit induces an a.c. current in the resonant load circuit. The converter circuit comprises first and second switches serially connected between a bus conductor at a d.c. voltage and a reference conductor, and being connected together at a common node through which the a.c. load current flows. The first and second switches each comprise a reference node and a control node, the voltage between such nodes determining the conduction state of the associated switch. The respective reference nodes of the first and second switches are interconnected at the common node. The respective control nodes of the first and second switches are interconnected. An inductance is connected between the control nodes and the common node. A starting pulse-supplying capacitance is connected in series with the inductance, between the control nodes and the common node. A network is connected to the control nodes for supplying the starting pulse-supplying capacitance with charge so as to create a starting pulse during lamp starting, and for setting the voltage of the control nodes sufficiently close to that of the common node during steady state lamp operation so as to prevent the capacitance from supplying a starting pulse during the steady state lamp operation. A polarity-determining impedance is connected between the common node and one of the bus conductor and the reference conductor, to set the initial polarity of pulse to be generated by the starting pulse-supplying capacitor.
摘要翻译： 用于气体放电灯的镇流器电路包括包括灯的谐振负载电路。 一个d.c.到a.c。 转换器电路引起一个直流 谐振负载电路中的电流。 转换器电路包括串联连接在总线导体之间的第一和第二开关。 电压和参考导体，并且在公共节点处连接在一起，通过该通道 负载电流流动。 第一和第二开关各自包括参考节点和控制节点，这些节点之间的电压确定相关联的开关的导通状态。 第一和第二开关的相应参考节点在公共节点处相互连接。 第一和第二开关的相应控制节点相互连接。 电感连接在控制节点和公共节点之间。 启动脉冲供电电容与控制节点和公共节点之间的电感串联连接。 网络连接到控制节点，用于向起动脉冲供电电容提供电荷，以便在灯启动期间产生启动脉冲，并且在稳态灯期间将控制节点的电压设置得足够接近公共节点的电压 以便在稳态灯操作期间防止电容提供启动脉冲。 在公共节点和总线导体和参考导体中的一个之间连接极性确定阻抗，以设置由起动脉冲供电电容器产生的脉冲的初始极性。
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3.发明授权Ballast circuit for a gas discharge lamp having a cathode pre-heat arrangement 失效具有阴极预热布置的气体放电灯的镇流器电路
公开(公告)号：US5483125A
公开(公告)日：1996-01-09
申请号：US161844
申请日：1993-12-06
IPC分类号： H05B41/24 , H05B41/298 , H05B39/04
CPC分类号： H05B41/2988 , Y10S315/05
摘要： A ballast circuit for a gas discharge lamp, of the type having a pair of resistively heated cathodes that are resistively heated both during a cathode pre-heat period prior to lamp turn-on, and during steady state lamp operation, is disclosed. The ballast circuit includes circuitry for providing, on a bus conductor, a d.c. bus voltage with respect to a ground, and a converter, responsive to the d.c. bus voltage, for supplying bidirectional current to a resonant load circuit. The resonant load circuit includes the gas discharge lamp, a resonant capacitor coupled between the lamp cathodes such that its voltage varies with lamp voltage, and a resonant inductor serially coupled to the resonant capacitor and cooperating therewith to set a magnitude, and resonant frequency, of the bidirectional lamp current. Circuitry is provided for powering the resistively heated lamp cathodes, to thereby heat the cathodes. Further included is a circuit for maintaining the lamp voltage during a cathode pre-heat period below a predetermined level so as to prevent lamp turn-on during such period; such circuit includes circuitry for holding a first cathode of the lamp at a substantially constant voltage, and circuitry for clamping a second cathode of the lamp below the predetermined level. Such clamping circuitry includes a positive temperature coefficient (PTC) impedance device coupled to a second cathode of the lamp, and serially connected by a positively poled clamping diode to the bus conductor, and serially connected by a negatively poled clamping diode to the ground.
摘要翻译： 公开了一种用于气体放电灯的镇流器电路，其具有在灯开启之前的阴极预热期间以及稳态灯操作期间电阻加热的一对电阻加热的阴极。 镇流器电路包括用于在总线导体上提供直流电的电路。 相对于地面的总线电压，以及响应于直流的转换器。 总线电压，用于向谐振负载电路提供双向电流。 谐振负载电路包括气体放电灯，耦合在灯阴极之间的谐振电容器，使得其电压随灯电压变化，以及串联耦合到谐振电容器的谐振电感器，并与其配合以设定幅度和谐振频率 双向灯电流。 提供电路用于对电阻加热的灯阴极供电，从而加热阴极。 还包括一个电路，用于在阴极预热期间保持低于预定水平的灯电压，以防止在这样的时间段期间灯接通; 这种电路包括用于将灯的第一阴极保持在基本上恒定的电压的电路，以及将灯的第二阴极夹持在预定水平以下的电路。 这种钳位电路包括耦合到灯的第二阴极的正温度系数（PTC）阻抗器件，并且通过正极钳位二极管串联连接到总线导体，并且由负极化的钳位二极管串联连接到地。
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4.发明授权Diodeless start circiut for gas discharge lamp having a voltage divider connected across the switching element of the inverter 失效用于具有连接在逆变器的开关元件上的分压器的气体放电灯的无状态启动循环
公开(公告)号：US5619106A
公开(公告)日：1997-04-08
申请号：US669679
申请日：1996-06-24
申请人： Michael M. Secen
发明人： Michael M. Secen
IPC分类号： H05B41/24 , H05B41/282 , H05B41/14
CPC分类号： H05B41/2825 , H05B41/2827 , Y10S315/05
摘要： A ballast circuit for a gas discharge lamp comprises a resonant load circuit incorporating a gas discharge lamp and including first and second resonant impedances whose values determine the operating frequency of the resonant load circuit. A d.c.-to-a.c. converter circuit is coupled to the resonant load circuit so as to induce an a.c. current in the resonant load circuit, and comprises first and second switches serially connected in the mentioned order between a bus conductor at a d.c. bus voltage and ground, and having a common switch node through which the a.c. current flows. A bridge capacitor has one end connected to ground. First and second feedback circuits regeneratively control the first and second switches, respectively, in response to a.c. current in the resonant load circuit. A starting circuit initiates operation of the first and second feedback circuits, and incorporates a voltage-divider network comprising first and second serially connected impedances with a common impedance node, and is coupled between the common switch node and ground. Such circuit includes a starting capacitor coupled between the common impedance node and ground, and a voltage-breakover switch coupled between a non-grounded end of the bridge capacitor and the starting capacitor. Also included in the starting circuit is a transformer winding serially coupled to the voltage-breakover switch so as to conduct a pulse of current when the voltage-breakover switch fires, the winding being coupled to the first and second feedback circuits so as to result in a starting pulse of current in the circuits when the voltage-breakover switch fires.
摘要翻译： 用于气体放电灯的镇流器电路包括并入有气体放电灯的谐振负载电路，并且包括第一和第二谐振阻抗，其值确定谐振负载电路的工作频率。 一个d.c.到a.c。 转换器电路耦合到谐振负载电路，以便引起一个直流 谐振负载电路中的电流，并且包括以直流方式在总线导体之间以上述顺序串联连接的第一和第二开关。 总线电压和接地，并具有公共交换节点，通过该交换节点。 电流。 桥接电容器的一端连接到地。 第一和第二反馈电路分别响应于交流再生地控制第一和第二开关。 谐振负载电路中的电流。 启动电路启动第一和第二反馈电路的操作，并且包括包括第一和第二串联连接的阻抗与公共阻抗节点的分压器网络，并且耦合在公共开关节点和地之间。 这种电路包括耦合在公共阻抗节点和地之间的起动电容器，以及耦合在桥接电容器的非接地端和起动电容器之间的电压破坏开关。 启动电路中还包括串联耦合到断电开关的变压器绕组，以便在断电开关触发时传导电流脉冲，绕组耦合到第一和第二反馈电路，从而导致 当电压破坏开关触发时，电路中的电流的起始脉冲。
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公开(公告)号：US5332970A
公开(公告)日：1994-07-26
申请号：US904287
申请日：1992-06-25
CPC分类号： G01R31/24
摘要： A simulated load circuit for measuring the impedance of the arc discharge of an electrodeless discharge lamp of the type having an arc tube and an excitation coil for exciting the arc discharge in an ionizable fill contained therein includes: a secondary coil spaced apart from the excitation coil by a distance which is varied in order to vary the coupling coefficient between the secondary coil and the excitation coil; a fixed load resistance coupled to the secondary coil; and a variable matching network coupled in series or parallel with the load resistance, the impedance of the matching network being varied in order to vary the ratio of reactance to resistance of the load circuit. The distance between the secondary coil and the excitation coil is varied, and the impedance of the matching network is varied, until the input impedance of the load circuit is substantially equivalent to the operating impedance of the lamp. The simulated load circuit is useful for designing and testing ballast circuits for electrodeless discharge lamps and for providing measurements of arc discharge power and excitation coil efficiency.
摘要翻译： 一种用于测量具有用于激发其中包含的可电离填充物中的电弧放电的电弧管和激励线圈的类型的无电极放电灯的电弧放电阻抗的模拟负载电路包括：与励磁线圈间隔开的次级线圈 通过改变以改变次级线圈和励磁线圈之间的耦合系数的距离; 耦合到次级线圈的固定负载电阻; 以及与负载电阻串联或并联耦合的可变匹配网络，匹配网络的阻抗是变化的，以便改变负载电路的电抗与电阻的比率。 次级线圈和励磁线圈之间的距离是变化的，并且匹配网络的阻抗是变化的，直到负载电路的输入阻抗基本上等于灯的工作阻抗。 模拟负载电路可用于设计和测试无电极放电灯的镇流器电路，并提供电弧放电功率和励磁线圈效率的测量。
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公开(公告)号：US5440199A
公开(公告)日：1995-08-08
申请号：US990204
申请日：1992-12-14
申请人： Raymond A. Heindl , Mark E. Duffy , Frederick Hetzel , David J. Marks , Lawrence T. Mazza , Curtis E. Scott , Michael M. Secen
发明人： Raymond A. Heindl , Mark E. Duffy , Frederick Hetzel , David J. Marks , Lawrence T. Mazza , Curtis E. Scott , Michael M. Secen
CPC分类号： H01J5/52 , H01J65/046 , H01R33/46 , H01R33/88
摘要： A base for an electrodeless arc discharge lamp having an elongated tubular stem extending through an outer envelope pinch or press seal includes a pair of electrically non-conductive members secured in mating relation to define an upper cavity and a lower axial bore. The lamp is mounted in the base with its pinch seal secured in the cavity and its stem extending into the bore. With the base mounted in a fixture, RF energy is coupled into the lamp to excite a starting aid in the stem via a conductive bushing in the bore.
摘要翻译： 一种无电弧放电灯的基座，其具有延伸穿过外部封套或压力密封件的细长管状茎，包括一对非导电构件，其以配对关系固定，以限定上空腔和下轴向孔。 灯安装在基座中，其夹紧密封件固定在空腔中，其杆延伸到孔中。 当基座安装在固定装置中时，RF能量耦合到灯中，以通过孔中的导电衬套在杆中激发启动辅助。
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7.发明授权Simulated load circuit for simulating the arc impedance of an electrodless discharge lamp 失效模拟负载电路，用于模拟无电极放电灯的电弧阻抗
公开(公告)号：US5479102A
公开(公告)日：1995-12-26
申请号：US229990
申请日：1994-04-19
CPC分类号： G01R31/24
摘要： A simulated load circuit for measuring the impedance of the arc discharge of an electrodeless discharge lamp of the type having an arc tube and an excitation coil for exciting the arc discharge in an ionizable fill contained therein includes: a secondary coil spaced apart from the excitation coil by a distance which is varied in order to vary the coupling coefficient between the secondary coil and the excitation coil; a fixed load resistance coupled to the secondary coil; and a variable matching network coupled in series or parallel with the load resistance, the impedance of the matching network being varied in order to vary the ratio of reactance to resistance of the load circuit. The distance between the secondary coil and the excitation coil is varied, and the impedance of the matching network is varied, until the input impedance of the load circuit is substantially equivalent to the operating impedance of the lamp. The simulated load circuit is useful for designing and testing ballast circuits for electrodeless discharge lamps and for providing measurements of arc discharge power and excitation coil efficiency.
摘要翻译： 一种用于测量具有用于激发其中包含的可电离填充物中的电弧放电的电弧管和激励线圈的类型的无电极放电灯的电弧放电阻抗的模拟负载电路包括：与励磁线圈间隔开的次级线圈 通过改变以改变次级线圈和励磁线圈之间的耦合系数的距离; 耦合到次级线圈的固定负载电阻; 以及与负载电阻串联或并联耦合的可变匹配网络，匹配网络的阻抗是变化的，以便改变负载电路的电抗与电阻的比率。 次级线圈和励磁线圈之间的距离是变化的，并且匹配网络的阻抗是变化的，直到负载电路的输入阻抗基本上等于灯的工作阻抗。 模拟负载电路可用于设计和测试无电极放电灯的镇流器电路，并提供电弧放电功率和励磁线圈效率的测量。
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8.发明授权
公开(公告)号：US5382878A
公开(公告)日：1995-01-17
申请号：US996272
申请日：1992-12-24
CPC分类号： H05B41/2806 , H05B41/382 , Y02B20/204 , Y02B20/22 , Y10S315/07
摘要： An auto-starting lamp system comprises an electrodeless high intensity discharge lamp of the type including an arc tube that contains an ionizable fill, an excitation coil surrounding the arc tube for exciting an arc discharge in the ionizable fill at least during steady state lamp operation, and a starter circuit for facilitating arc discharge of the ionizable fill. The system further comprises a controllable r.f. power source for powering the lamp excitation coil, and an electrical network for matching the impedance of the excitation coil to the impedance of the r.f. power source. The impedance-matching network has the same impedance-matching relation during both lamp start-up and steady state lamp operation. A system controller causes the r.f. power source, during lamp start-up, to ramp up in power to a peak level preferably substantially in excess of a steady state lamp operating power level, and then to decrease from the peak level. Preferably, the system further comprises circuitry for re-powering the starter circuit after a predetermined period of time has elapsed that is sufficiently long as to prevent thermal damage to the lamp resulting from powering the starter circuit. The system preferably further comprises control circuitry for alternately turning on and turning off power to the starter circuit after the lamp ionizable fill recovers an ability to reach full arc discharge after being extinguished.
摘要翻译： 一种自动启动灯系统包括一种无电极高强度放电灯，其类型包括包含可电离填充物的电弧管，围绕电弧管的激励线圈，用于至少在稳态灯操作期间激发可电离填充物中的电弧放电， 以及用于促进可电离填充物的电弧放电的启动器电路。 该系统还包括可控制的r.f. 用于为灯激励线圈供电的电源，以及用于将励磁线圈的阻抗与r.f的阻抗匹配的电网。 能量源。 阻抗匹配网络在灯启动和稳态灯操作期间具有相同的阻抗匹配关系。 系统控制器使r.f. 电源，在灯启动期间，将功率上升至峰值水平，优选地基本上超过稳态灯工作功率水平，然后从峰值水平降低。 优选地，该系统还包括用于在已经经过足够长的预定时间段之后为启动器电路重新供电的电路，以便防止由起动器电路供电引起的对灯的热损伤。 该系统优选地还包括控制电路，用于在灯可电离填充物恢复在熄灭之后达到完全电弧放电的能力时交替地接通和断开对起动器电路的电力。
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