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公开(公告)号：US5121034A
公开(公告)日：1992-06-09
申请号：US579129
申请日：1990-09-06
IPC分类号： H05B41/292
CPC分类号： H05B41/2928 , Y02B20/208 , Y10S315/07
摘要： Miniature high pressure arc lamps containing a substantial pressure of xenon, in addition to metal halide and mercury, can provide instant light at turn-on and are suitable for automotive headlamps. The high pressure of xenon aggravates convection which causes arc bowing and overheating of the envelope above the arc. By operating the lamp at high frequency within selected bands, acoustic modes are excited in the fill which straighten the arc and make the envelope more isothermal. Frequency modulation of the input can be used to broaden the band selected for acoustic operation and relax the tolerance on arc tube and circuit parameters needed for a match. Acoustic operation may also be used to effect physical displacement of the arc for beam switching.
摘要翻译： 除了金属卤化物和汞之外，含有大量氙气的微型高压电弧灯可以在开启时提供瞬间光，适用于汽车前照灯。 氙气的高压加剧对流，导致电弧弯曲和电弧上方的信封过热。 通过在所选频带内高频率地操作灯泡，在填充物中激发声学模式，使电弧拉直，并使信封更加等温。 输入的频率调制可以用于扩大选择用于声学操作的频带，并放宽电弧管的公差和匹配所需的电路参数。 还可以使用声学操作来实现用于光束切换的电弧的物理位移。
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2.发明授权Acoustic resonance operation of xenon-metal halide lamps on unidirectional current 失效氙金属卤化物灯在单向电流下的声共振操作
公开(公告)号：US5198727A
公开(公告)日：1993-03-30
申请号：US665853
申请日：1991-03-07
IPC分类号： F21S8/10 , B60Q1/04 , H01J61/10 , H01J61/16 , H01J61/20 , H01J61/82 , H01J61/86 , H01J61/88 , H05B41/00 , H05B41/14 , H05B41/16 , H05B41/24 , H05B41/292 , H05B41/38
CPC分类号： H05B41/382 , H01J61/106 , H01J61/82 , H01J61/86 , H05B41/2928 , Y02B20/208 , Y10S315/07
摘要： Miniature high pressure arc lamps containing a substantial pressure of xenon, in addition to metal halide and mercury, can provide instant light at turn-on and are suitable for automotive headlamps. The xenon aggravates convection which causes arc-bowing and overheating of the envelope above the arc. By operating the lamps on unidirectional current upon which a frequency-modulated high frequency ripple has been imposed, acoustic resonance is used to straighten out the arc. The use of unidirectional current permits a reduction in cost and size of the ballast control circuits operated from auto storage battery. Frequency modulation of the ripple broadens the band allowing acoustic straightening of the arc. Additional control of the arc plus reduction of cataphoresis may be achieved through a horizontal magnetic field at the arc, transverse to current flow.
摘要翻译： 除了金属卤化物和汞之外，含有大量氙气的微型高压电弧灯可以在开启时提供瞬间光，适用于汽车前照灯。 氙气会加剧对流，导致弧线上方的弧形弯曲和过热。 通过在施加了调频高频纹波的单向电流上操作灯，使用声共振来矫直电弧。 使用单向电流允许降低从自动蓄电池操作的镇流器控制电路的成本和尺寸。 纹波的频率调制使得能够矫正电弧的频带变宽。 可以通过横向于电流的电弧处的水平磁场来实现弧的额外控制以及电泳的减少。
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3.发明授权Direct current (DC) acoustic operation of xenon-metal halide lamps using high-frequency ripple 失效使用高频波纹的氙金属卤化物灯的直流（DC）声操作
公开(公告)号：US5047695A
公开(公告)日：1991-09-10
申请号：US482387
申请日：1990-02-20
CPC分类号： H05B41/2928 , H05B41/382 , Y02B20/204 , Y02B20/208 , Y10S315/07
摘要： A method and a ballast circuit are disclosed for operating a xenon-metal halide lamp particularly suited for automotive applications with a direct curernt (DC) levels having selectable amount of ripple imposed thereon. The ripple provides for acoustically straightening the arc between the electrodes of the xenon-metal halide lamp. The DC acoustic operation has the capability of utilizing cataphoresis effect so as to provide a less distracting forward beam illumination for a vehicle.
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公开(公告)号：US4904907A
公开(公告)日：1990-02-27
申请号：US161058
申请日：1988-02-26
IPC分类号： B60Q1/04 , H05B41/16 , H05B41/24 , H05B41/282 , H05B41/292
CPC分类号： H05B41/2928 , Y02B20/208 , Y10S315/07
摘要： A ballast circuit and method of operating gas discharge lamps are disclosed. The ballast circuit generates a relatively low frequency regulated square-wave current which advantageously provides for operating the gas discharge lamps during their run mode. The square-wave current delivered to the electrodes of the gas discharge lamp reduces or substantially eliminates the cataphoresis effects typically created by D.C. and 60 Hz operation of the gas discharge lamp while also reducing or substantially eliminating the detrimental acoustics resonance effects typically created by operating the gas discharge lamps at relatively high frequency of excitations.
摘要翻译： 公开了镇流器电路和操作气体放电灯的方法。 镇流器电路产生相对低频率调节的方波电流，其有利地提供在其运行模式期间操作气体放电灯。 传递到气体放电灯的电极的方波电流降低或基本上消除了通常由气体放电灯的DC和60Hz操作产生的电泳效应，同时还减少或基本消除了通常通过操作所产生的有害的声学共振效应 气体放电灯的激发频率相对较高。
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公开(公告)号：US4987347A
公开(公告)日：1991-01-22
申请号：US320726
申请日：1989-03-08
IPC分类号： H05B39/04 , H05B41/292
CPC分类号： H05B41/2928 , H05B39/045 , Y10S315/02 , Y10S315/07
摘要： A lamp driver circuit is presented herein for driving a lamp circuit with an AC squarewave voltage at a relatively high frequency. The driver circuit includes a self-oscillating half-bridge circuit having a pair of input terminals connected across a DC voltage supply, which may be obtained from rectifying an AC voltage signal, and a pair of output terminals connected across a lamp circuit including a lamp, either a resistive lamp or a gaseous discharge lamp, to be energized. The circuit also includes a pair of capacitors connected together in series across the input terminals and having a junction therebetween connected to a first one of the output terminals. The bridge circuit also includes first and second switching transistors connected together in series across the input terminals. A transformer is provided having first and second windings thereon respectively connected to the first and second switching transistors for alternately applying forward biasing base drive current to the first and second transistors. A third winding on the transformer is connected in series from the junction of the two transistors to a second one of the output terminals for purposes of supplying a squarewave voltage across the output terminals for driving the lamp circuit. A starter circuit serves to start the half-bridge circuit by initially turning on one of the switching transistors in such a manner that while one transistor is being forward biased into conduction, the other transistor is reverse biased.
摘要翻译： 本文提出了一种灯驱动器电路，用于以较高频率驱动具有交流方波电压的灯电路。 驱动器电路包括自振荡半桥电路，其具有连接在直流电压源上的一对输入端子，该一对输入端子可以从整流交流电压信号获得;以及一对输出端子，其连接在包括灯 ，电阻灯或气体放电灯，被激励。 该电路还包括串联连接在输入端上的一对电容器，并且具有连接到第一输出端子的连接点。 桥接电路还包括串联连接在输入端子上的第一和第二开关晶体管。 提供一种变压器，其具有分别连接到第一和第二开关晶体管的第一和第二绕组，用于交替地向第一和第二晶体管施加正向偏置基极驱动电流。 变压器上的第三绕组从两个晶体管的结点串联连接到输出端的第二绕组，用于在输出端上提供方波电压以驱动灯电路。 起动器电路用于通过首先以一个晶体管正向偏置为导通的方式首先接通其中一个开关晶体管来启动半桥电路，另一个晶体管被反向偏置。
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公开(公告)号：US5654610A
公开(公告)日：1997-08-05
申请号：US533297
申请日：1995-09-25
CPC分类号： H01J65/048 , H01J61/16
摘要： An electrodeless neon discharge light source having a red color light output is provided for use in automotive applications. The light source has a lamp envelope containing a fill of neon gas which, when excited to a discharge state by introduction of an operating signal over a tuned circuit consisting of a resonant capacitor and a ferrite coil, produces a red color light output. A flash control input to a ballast circuit arrangement provides the ability to control the light output using bursts of high frequency sinusoidal energy. The use of the burst signal approach allows for providing varying levels of light intensity output thereby signifying the distinction between braking conditions and an on condition of the tail light. Furthermore, by controlling the rate of flashing of the light source, an indication of a hard braking or emergency condition, could be conveyed.
摘要翻译： 提供具有红色光输出的无电极氖放电光源用于汽车应用中。 光源具有包含氖气填充物的灯壳，当通过在由谐振电容器和铁氧体线圈组成的调谐电路上引入操作信号而被激发到放电状态时，产生红色光输出。 对镇流器电路装置的闪光控制输入提供使用高频正弦能量脉冲串来控制光输出的能力。 使用脉冲串信号方法允许提供不同程度的光强度输出，从而表示制动条件与尾灯的开启状态之间的区别。 此外，通过控制光源的闪烁速度，可以传达硬制动或紧急情况的指示。
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7.发明授权
公开(公告)号：US5317237A
公开(公告)日：1994-05-31
申请号：US981023
申请日：1992-11-24
申请人： Joseph M. Allison , Raymond A. Buchina , James D. Mieskowski , Edward J. Thomas , John M. Davenport
发明人： Joseph M. Allison , Raymond A. Buchina , James D. Mieskowski , Edward J. Thomas , John M. Davenport
IPC分类号： H02M3/155 , H05B41/24 , H05B41/292 , H05B41/38 , H05B41/36
CPC分类号： H05B41/2925 , H05B41/386 , Y02B20/204
摘要： A low voltage DC input ballast circuit for a discharge lamp particularly suitable for a central lighting system includes an input filter stage which feeds into a first boost converter circuit controlled by way of a pulse width modulator device. The first boost converter provides warm-up and steady state run signals to the lamp in a voltage fed manner over a coupling circuit using components which are reduced in size relative to conventional discharge ballast circuits. Control circuitry provides various monitoring functions, an example of which is that, in the event of a low input voltage, the lamp will operate in a dimmed or faded manner rather than maintain lumen output by drawing additional current. A second boost converter circuit is associated with a starter circuit arrangement and operates such that starting pulses can be generated and repeated if necessary in a very rapid manner.
摘要翻译： 一种特别适用于中央照明系统的用于放电灯的低压DC输入镇流器电路包括输入滤波器级，其馈入通过脉宽调制器装置控制的第一升压转换器电路。 第一升压转换器使用相对于常规放电镇流器电路尺寸减小的部件，通过耦合电路以电压馈送方式向灯提供预热和稳态运行信号。 控制电路提供各种监视功能，其实例是，在低输入电压的情况下，灯将以暗淡或褪色的方式操作，而不是通过绘制附加电流来维持流明输出。 第二升压转换器电路与起动器电路装置相关联，并且操作使得如果需要以非常快速的方式可以产生并重复启动脉冲。
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公开(公告)号：US06366032B1
公开(公告)日：2002-04-02
申请号：US09494193
申请日：2000-01-28
申请人： Joseph M. Allison , David J. Moore
发明人： Joseph M. Allison , David J. Moore
IPC分类号： G05F100
CPC分类号： H05B41/2985
摘要： A resonant fluorescent lamp ballast includes an IC driver for a half-bridge arrangement that supplies AC current to a lamp. The IC creates a frequency sweep from a pre-heat frequency, through a resonant frequency, to a still lower operating frequency. A pre-heat pin in the IC triggers a re-start or the frequency sweep when a first signal exceeds a first threshold level. A shut-down pin in the IC associated with an internal shut-down latch shuts down the driver when a second signal exceeds a second threshold level. Pre-heat trigger circuitry detects a current spike through half-bridge switches when the lamp has not yet started, supplying the pre-heat pin with a first signal exceeding the first threshold level. End-of-life circuitry provides to the shut-down pin a second signal exceeding the second threshold level if lamp current fails to reach a substantial portion of its normal level within a predetermined time. A DC current-supply path is provided from a DC current supply, through at least one filament of each lamp in the load circuit, to a power-supply pin for the IC. The end-of-life circuitry cooperates with the pre-heat trigger circuitry by limiting the number of the frequency sweeps to no more than occur during the predetermined time set by the end-of-life circuitry. The DC path cooperates with the end-of-life circuitry and the internal shut-down latch to reset the latch when the DC path is broken due to absence of the at least one filament in the path.
摘要翻译： 共振荧光灯镇流器包括用于向灯提供AC电流的用于半桥布置的IC驱动器。 IC从预热频率通过谐振频率创建频率扫描到更低的工作频率。 当第一信号超过第一阈值电平时，IC中的预热引脚触发重新启动或频率扫描。 与内部关闭闩锁相关联的IC中的关闭引脚在第二信号超过第二阈值电平时关闭驱动器。 预热触发电路在灯尚未启动时通过半桥开关检测电流尖峰，为预热引脚提供超过第一阈值电平的第一信号。 如果灯电流在预定时间内未能达到其正常水平的相当大的一部分，则寿命终止电路向停车销提供超过第二阈值水平的第二信号。 直流电流供给路径通过负载电路中的每个灯的至少一根灯丝从直流电源提供给用于IC的电源引脚。 寿命终止电路通过将频率扫描的数量限制在由寿命终止电路设置的预定时间内不再发生的情况下与预热触发电路配合。 DC路径与寿命终止电路和内部关闭锁存器配合，以在由于路径中不存在至少一个细丝而导致DC路径故障时复位锁存器。
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9.发明授权Gas discharge lamp ballast circuit with reduced parts-count starting circuit 失效气体放电灯镇流器电路具有减少的零件数启动电路
公开(公告)号：US5426346A
公开(公告)日：1995-06-20
申请号：US209092
申请日：1994-03-09
申请人： Joseph M. Allison
发明人： Joseph M. Allison
IPC分类号： H05B41/18 , H05B41/04 , H05B41/288 , H05B41/38 , H05B37/02
CPC分类号： H05B41/2881 , H05B41/042 , H05B41/288 , H05B41/2882 , H05B41/2885 , H05B41/384 , Y02B20/202 , Y02B20/204 , Y02B20/206
摘要： Disclosed is an electronic ballast circuit for a high pressure gas discharge lamp with a reduced parts-count starting circuit. The circuit comprises an arrangement for supplying d.c. voltage from a d.c. source, and a main inductor for receiving energy from the d.c. source and supplying the energy to the lamp. The main inductor has a plurality of windings. A first winding of the inductor is coupled to receive energy from the d.c. source. Further included is a current-switching arrangement conductive during periodic first part cycles for transferring energy from the d.c. source to the main inductor, and non-conductive during periodic second part cycles. A first part cycle is followed by a second part cycle in successive periods of switching operation of the current-switching arrangement. The first winding of the main inductor has impressed across it substantially the d.c. source voltage during the first part cycles, and reflects substantially the lamp voltage during the second part cycles. The circuit further includes a starting circuit for providing a pulse in excess of 15,000 volts across the lamp to facilitate starting the lamp. The starting circuit comprises a spark gap device, a pulse transformer, and a voltage-generating circuit. The voltage-generating circuit comprises a starting capacitor for storing energy and impressing across a spark gap an increasing voltage, which reaches the breakdown voltage of the spark gap during a lamp start-up period, and also a circuit for charging the starting capacitor with energy from the main inductor during the second part cycles.
摘要翻译： 公开了一种具有减少零件计数启动电路的高压气体放电灯的电子镇流器电路。 该电路包括用于提供直流电的装置。 电压从直流 源和用于从直流接收能量的主电感器。 来源并向灯提供能量。 主电感器具有多个绕组。 电感器的第一绕组被耦合以从直流接收能量。 资源。 还包括电流切换装置，在周期性的第一部分循环期间传导来自直流的能量。 源极到主电感器，并且在周期性第二部分周期期间是非导通的。 第一部分周期之后是电流切换装置的开关操作的连续周期中的第二部分周期。 主电感器的第一个绕组基本上印加了直流电压。 源极电压，并且在第二部分周期期间基本上反映灯电压。 该电路还包括用于在灯上提供超过15000伏的脉冲以启动灯的启动电路。 启动电路包括火花隙装置，脉冲变压器和电压发生电路。 电压发生电路包括一个启动电容器，用于存储能量并在火花间隙上施加一个增加的电压，该电压在灯启动期间达到火花隙的击穿电压，并且还包括用于向启动电容器充电的电路 在第二部分循环期间从主电感器。
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公开(公告)号：US06819059B2
公开(公告)日：2004-11-16
申请号：US10282943
申请日：2002-10-29
申请人： Tilton L. Block , Joseph M. Allison
发明人： Tilton L. Block , Joseph M. Allison
IPC分类号： H05B3700
CPC分类号： H05B41/34
摘要： A reliable strobe power supply is disclosed that provides requisite light energy for emergency uses without causing EMI problems. A two phase dual flyback power converter operating in transitional mode is disclosed containing a microcontroller that maintains a 180 degree displacement between the two phases by enabling a small, variable dead time between the cessation of stored energy in the flyback transformers and turn-on of the associated power switching transistor for one or the other phases. The power supply is capable of detecting a fault (neoning) and automatically correcting the condition by incrementing the flash capacitor charge off-time delay. The power supply is also capable of tolerating defective (persistently neoning) strobe tubes that cause an inordinate delay in capacitor charging by turning them off.
摘要翻译： 公开了一种可靠的闪光灯电源，为紧急用途提供必要的光能，而不会引起EMI问题。 公开了一种以过渡模式工作的双相双反激式功率转换器，其包含微控制器，该微控制器通过在反激式变压器中停止存储的能量之间的小的，可变的死区时间以及 相关的功率开关晶体管用于一个或多个相。 电源能够检测故障（neoning），并通过增加闪存电容器充电关闭时间延迟来自动校正状况。 电源还能够容忍通过关闭电容器充电导致电源充电过度延迟的有缺陷（持续地新的）闪光灯管。
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