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81. 发明授权

US5999094A Combination telephone and smoke alarm system 失效
标题翻译：组合电话和烟雾报警系统
公开(公告)号：US5999094A
公开(公告)日：1999-12-07
申请号：US166931
申请日：1993-12-15
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H04B3/54 , H04L12/28 , H04M1/725 , H04M11/00 , H04M11/04 , H04M19/08 , G08B29/00
CPC分类号： H04B3/54 , H04M1/725 , H04M11/00 , H04M11/04 , H04M19/08 , H04B2203/5437 , H04B2203/5441 , H04B2203/5458 , H04L12/2803 , H04L12/2838 , H04L2012/2841 , H04L2012/2843 , H04L2012/2845 , H04M1/72533
摘要： An in-building telephone distribution system has a multi-conductor telephone distribution cable, starting at the point where the telephone utility lines enter the building and extending from there to each location at which a telephone outlet is wanted, at which a smoke alarm is wanted, and/or at which one of numerous other devices (e.g., door chime) might be wanted. At a suitable point along the cable, a first pair of the cable's conductors is connected with the power output terminals of a Class-2 (or Class-2-equivalent) DC power supply, whose power input terminals are connected with an ordinary electric utility power line. Thus, at any point along the cable, the first pair of conductors may be accessed and used as a Class-2 DC power source. A second pair of the cable's distribution conductors is used for distribution of the telephone signals. Each telephone outlet is connected with the second pair of conductors for telephone signals and with the first pair of conductors for Class-2 DC power; which Class-2 DC power is used for powering those telephone instruments requiring DC power, such as cord-less telephones, telephone answering machines, fax machines, modems, etc. A third pair of conductors is used for smoke alarm signals and is therefore connected with each smoke alarm; each of which is also connected with the first pair of conductors so as to have access to Class-2 DC power.
摘要翻译：室内电话分配系统具有多导体电话分配电缆，从电话线路进入建筑物的点开始，并从那里延伸到需要电话插座的每个位置，在那里需要烟雾报警器，和/或可能想要许多其他设备（例如，门铃）中的哪一个。在沿着电缆的适当点处，第一对电缆的导体与2类（或2类等效的）直流电源的电源输出端子相连，其电源输入端子与普通电力公司连接电源线。因此，在沿着电缆的任何点处，第一对导体可以被访问并用作2类直流电源。第二对电缆的配线导线用于电话信号的分配。每个电话插座与用于电话信号的第二对导体连接，并与第二对导体连接，用于Class-2直流电; 使用2类直流电源为需要直流电力的电话设备供电，如无绳电话，电话应答机，传真机，调制解调器等。第三对导线用于烟雾报警信号，因此连接每个烟雾报警器; 它们中的每一个也与第一对导体连接，以便能够访问Class-2直流电源。

82. 发明授权

US5691603A Electronic ballast with multiple lamp loads 失效
标题翻译：具有多个灯负载的电子镇流器
公开(公告)号：US5691603A
公开(公告)日：1997-11-25
申请号：US531481
申请日：1995-09-21
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M7/5383 , H03K3/30 , H05B41/24 , H05B41/28 , H05B41/282 , H05B41/295 , H05B41/392 , H05B37/02
CPC分类号： H05B41/2827 , H02M7/53832 , H03K3/30 , H05B41/245 , H05B41/28 , H05B41/295 , H05B41/3925 , Y02B20/185 , Y02B70/1441 , Y10S315/07
摘要： A fluorescent lighting system has: (A) a central power supply including: (i) a parallel-resonant self-oscillating bridge inverter operative to provide a 35 kHz sinusoidal output voltage at a pair of primary output terminals; (ii) a tank-inductor and a tank-capacitor parallel-connected across the primary output terminals; and (iii) plural pairs of secondary output terminals, each connected with the primary output terminals via its own dedicated current-limiting sub-circuit; thereby to prevent a load connected therewith from drawing more than a certain amount of power; thereby, in turn, to render each pair of secondary output terminals fire-hazard-safe and shock-hazard-safe; each pair of secondary power output terminals being connected with its own power output receptacle; and (B) a light-weight power cord plug-in-connected with one of the power output receptacles and having a pair of power conductors between which are connected a number of individually ballasted lighting units; each lighting unit having at least one gas discharge lamp as well as a high-power-factor ballasting assembly that includes a tuned parallel-connected LC circuit having a natural resonance frequency equal to that of the output voltage provided from the central power supply. Due to having each lighting unit parallel-resonant at the frequency of the output voltage, the drastic frequency change and concomitant loss in per-lamp light output usually occurring when adding several separately ballasted lamp loads to the output of a parallel-resonant self-oscillating power supply will not occur.
摘要翻译：荧光照明系统具有：（A）中央电源，包括：（i）并联谐振自振荡桥式逆变器，用于在一对主输出端提供35kHz正弦输出电压; （ii）在主输出端子之间并联连接的电容器和电容器; 和（iii）多对次级输出端子，每一个二次输出端子通过其自己的专用限流子电路与主输出端子相连; 从而防止与其连接的负载多于一定量的电力; 从而反过来使每对二次输出端子具有防火安全和防震危险的安全性; 每对二次电源输出端子与其自身的电力输出插座连接; 和（B）一个轻巧的电源线，其与一个电源输出插座插入连接，并具有一对电源导体，它们之间连接有多个独立的镇流照明单元; 每个照明单元具有至少一个气体放电灯以及包括谐振频率等于从中央电源提供的输出电压的固有谐振频率的调谐并联连接的LC电路的高功率因数镇流器组件。由于每个照明单元以输出电压的频率并联谐振，所以通常在将并行谐振自振荡器的输出添加几个单独的镇流灯负载时，通常会发生急剧的频率变化和伴随的每灯光输出损耗电源不会发生。

83. 发明授权

US5661802A Auxiliary power and telephone signal distribution system 失效
标题翻译：辅助电源和电话信号分配系统
公开(公告)号：US5661802A
公开(公告)日：1997-08-26
申请号：US585642
申请日：1996-01-16
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H04B3/54 , H04L12/28 , H04M1/725 , H04L9/08
CPC分类号： H04L12/2838 , H04B3/54 , H04L12/2803 , H04M1/725 , H04B2203/5437 , H04B2203/5441 , H04B2203/5458 , H04L2012/2843 , H04L2012/2845 , H04L2012/285 , Y02B70/325 , Y04S20/228
摘要： A telephone and auxiliary power distribution system in a building has a flexible multi-conductor signal and power distribution cable; which cable originates from a central signal & power management facility located near the point where the telephone utility line enters the building and extends from there to each of numerous locations within the building at which a fire-hazard-proof signal & power outlet is wanted; each of which outlets is adapted to service one of plural different loads, such as a wide variety of telephone and telephone-related instruments, smoke detectors, PC's, TV's & VCR's, clocks and timers, thermostats, door chimes and buttons, modems, fax machines, lamps & lights, Class-2 & Class-3 sub-circuits, etc. The central signal and power management facitility, which is connected with the telephone utility line, the electric utility power line, the gas utility gas supply line and a water supply line, serves: (i) to connect the telephone utility line with the signal and power distribution cable; (ii) even during periods of electric utility power failure, to provide various conditioned DC voltages to various pairs of power conductors within the distribution cable; (iii) to detect the presence of any unauthorized (e.g., fire-hazardous) loads connected with the power conductors; and (iv) to remove the voltage from a pair of conductors if an unauthorized load be connected therewith.
摘要翻译：建筑物中的电话和辅助配电系统具有灵活的多导体信号和配电电缆; 哪个电缆源自位于电话线路进入建筑物的点附近的中央信号和电力管理设施，并从那里延伸到建筑物内需要防火危险信号和电源插座的许多位置; 每个出口适于服务多种不同负载之一，例如各种电话和电话相关仪器，烟雾探测器，PC，TV和VCR，时钟和定时器，恒温器，门铃和按钮，调制解调器，传真机器，灯具，二级和三级子电路等。与电话线路，电力公司电力线，燃气公用事业气体供应线路连接的中央信号和电力管理平台供水管线，用于：（i）将电话线与信号和配电电缆相连; （ii）即使在电力故障期间，为分配电缆内的各对电力导体提供各种调节的直流电压; （iii）检测是否存在与电力导体连接的任何未经授权（例如，火灾危险）的负载; 以及（iv）如果与其连接未经授权的负载，则从一对导体去除电压。

84. 发明授权

US5510694A Storage battery with built-in charger and controls 失效
标题翻译：蓄电池带内置充电器和控制器
公开(公告)号：US5510694A
公开(公告)日：1996-04-23
申请号：US811922
申请日：1991-12-23
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02J7/00 , H02J7/10
CPC分类号： H02J7/0042 , H02J7/0031
摘要： A special storage battery has a pair of output terminals and a separate pair of input terminals. Comprised within the special battery is a sealed maintenance-free automotive-type storage battery with a pair of battery electrodes. A compact inverter-type battery charger is connected between the input terminals and the battery electrodes, and a control arrangement is connected between the battery electrodes and the output terminals.The input terminals are provided in the form of a recessed male receptacle adapted to connect with: i) a 120 Volt/60 Hz power line by way of a power cord having a female plug means at its one end and an ordinary power plug at its other end, or ii) a 12 Volt/DC source by way of a power cord having a female plug means at its one end and exposed conductors at its other end.The battery charger is operative to provide battery charging in an automatic manner from either 120 Volt/60 Hz or 12 Volt/DC.The control arrangement comprises: i) electrically actuatable contactor means operable on command to make connection between the battery electrodes and the output terminals, ii) voltage sensing means operative to prevent the contactor means from being or remaining actuated in case the voltage present across the output terminals falls outside a predetermined band of values, and iii) over-current protection means operative to prevent current from/to the output terminals from exceeding a predetermined magnitude for longer than a brief period.
摘要翻译：专用蓄电池有一对输出端子和一对输入端子。由专用电池组成的密封免维护汽车型蓄电池，带有一对电池电极。在输入端子和电池电极之间连接有紧凑型逆变器型电池充电器，并且在电池电极和输出端子之间连接有控制装置。输入端子设置成凹形阳插座的形式，适于连接：i）通过在其一端具有阴插头装置的电源线和其一端的普通电源插头连接的120V / 60Hz电力线另一端，或ii）12V / DC源，其电源线在其一端具有阴插头装置，在其另一端具有裸露的导体。电池充电器可以以120伏特/ 60赫兹或12伏特/直流的自动方式提供电池充电。该控制装置包括：i）电致动接触器装置，其可根据命令进行操作，以在电池电极和输出端之间进行连接; ii）电压感测装置，用于防止接触器装置在输出端端子落在预定值范围之外，以及iii）过电流保护装置，用于防止来自/到输出端子的电流超过预定幅度长于短时间。

85. 发明授权

US5498938A High-efficacy incandescent lighting system 失效
标题翻译：高效白炽灯系统
公开(公告)号：US5498938A
公开(公告)日：1996-03-12
申请号：US386186
申请日：1995-02-09
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H05B39/00 , H05B39/04 , H05B37/02
CPC分类号： H05B39/045 , H05B39/00 , Y02B20/142 , Y10S315/04
摘要： A lighting system comprises a number of central power supplies, with each central power supply being powered from a 277 Volt/60 Hz power line and operative to provide a voltage output of 277 Volt RMS magnitude and 30 kHz frequency to each of a plurality of special incandescent lighting fixtures.Each special lighting fixture comprises: i) an incandescent lamp designed to be properly powered by a voltage of 24 Volt RMS magnitude, and ii) a transformer operative to convert the 277 VoltRMS/30 kHz voltage to a 24 VoltRMS/30 kHz voltage.The reason for using 24 Volt incandescent lamps is that, at the lumen output levels normally required of light bulbs used in general lighting applications, an incandescent light bulb designed for and operated on 24 Volt RMS exhibits substantially higher efficacy and/or durability for a given lumen output level as compared with a light bulb designed for and operated on 277 Volt RMS (or 120 Volt RMS). The reason for distributing power by way of 277 VoltRMS/30 kHz instead of 277 Volt/60 Hz (or 120 Volt/60 Hz) relates to the fact that size, weight, efficiency and cost of a transformer suitable for operation on 30 kHz are very much more advantageous than would be the case at 277 Volt/60 Hz (or 120 Volt/60 Hz).
摘要翻译：照明系统包括多个中央电源，每个中央电源由277伏/ 60Hz的电力线供电，并且可操作以向多个特殊的每一个提供277伏RMS的幅度和30千赫兹频率的电压输出白炽灯具。每个特殊的照明灯具包括：i）白炽灯被设计成由24伏RMS值的电压适当供电，以及ii）变压器，用于将277伏特/ 30千赫兹电压转换成24伏特/ 30千赫兹的电压。使用24伏白炽灯的原因是，在一般照明应用中使用的灯泡通常需要的流明输出水平下，为24伏RMS设计和操作的白炽灯泡对于给定的功率和/或耐久性具有显着更高的功效和/或耐久性流明输出水平与设计用于和运行在277伏RMS（或120伏RMS））的灯泡相比。通过277 VoltRMS / 30 kHz而不是277 Volt / 60 Hz（或120 Volt / 60 Hz）分配功率的原因与适用于30 kHz操作的变压器的尺寸，重量，效率和成本有关比277伏特/ 60赫兹（或120伏特/ 60赫兹）更有利。

86. 发明授权

US5481160A Electronic ballast with FET bridge inverter 失效
标题翻译：电子镇流器与FET桥式逆变器
公开(公告)号：US5481160A
公开(公告)日：1996-01-02
申请号：US330605
申请日：1994-10-28
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M7/5383 , H02M7/53846 , H02M7/53862 , H02M7/5387 , H03K3/30 , H05B41/24 , H05B41/28 , H05B41/282 , H05B41/295 , H05B41/38 , H05B41/392 , H05B41/29 , H05B41/36
CPC分类号： H02M7/53862 , H02M7/53832 , H02M7/53835 , H02M7/53846 , H02M7/53873 , H03K3/30 , H05B41/245 , H05B41/28 , H05B41/2827 , H05B41/295 , H05B41/38 , H05B41/3925 , Y02B20/185 , Y10S315/05
摘要： Controlled DC supply voltage is provided to a self-oscillating FET bridge inverter ballast from a pre-converter and by way of an inductor having two separate windings on a common magnetic core--with one winding being positioned in each leg of the DC supply. The inverter is loaded by way of a parallel-tuned L-C circuit connected across the bridge inverter's output, thereby providing a special AC output voltage thereat. This special AC output voltage is characterized in that it exhibits an unusually high rate of voltage change at its cross-over points but otherwise has a substantially sinusoidal waveshape. An instant-start fluorescent lamp is connected via a current-limiting capacitor across the bridge inverter's output. The magnitude of the DC supply voltage is so chosen as to cause the magnitude of the AC output voltage to be such as to effectuate proper instant-starting of the fluorescent lamp. Because the AC output voltage is balanced with respect to ground, U.L. requirements are met without the need for an isolation transformer. Each of the four FET's is driven by providing a sinusoidal AC voltage directly from a positive feedback winding on the tank-inductor of the L-C circuit.
摘要翻译：控制的直流电源电压从预转换器提供给自振荡FET桥式逆变器镇流器，并且通过在公共磁芯上具有两个独立绕组的电感器提供，其中一个绕组位于直流电源的每个支路中。逆变器通过并联调谐的L-C电路加载在桥式逆变器的输出端，从而在其上提供特殊的交流输出电压。这种特殊的交流输出电压的特征在于，其交叉点具有非常高的电压变化率，但是具有基本正弦波形。瞬时启动荧光灯通过一个限流电容器连接在桥式逆变器的输出端。 DC电源电压的大小被选择为使得AC输出电压的大小能够实现荧光灯的正确启动。因为交流输出电压相对于地平衡。满足要求，无需隔离变压器。通过从L-C电路的电容器上的正反馈绕组直接提供正弦交流电压来驱动四个FET中的每一个。

87. 发明授权

US5440209A Driven full-bridge inverter ballast 失效
标题翻译：驱动全桥逆变镇流器
公开(公告)号：US5440209A
公开(公告)日：1995-08-08
申请号：US115586
申请日：1993-09-03
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M7/5383 , H02M7/53846 , H02M7/53862 , H02M7/5387 , H03K3/30 , H05B41/24 , H05B41/28 , H05B41/282 , H05B41/295 , H05B41/38 , H05B41/392 , H05B41/29
CPC分类号： H02M7/53862 , H02M7/53832 , H02M7/53835 , H02M7/53846 , H02M7/53873 , H03K3/30 , H05B41/245 , H05B41/28 , H05B41/2827 , H05B41/295 , H05B41/38 , H05B41/3925 , Y10S315/05
摘要： In an electronic ballast for Rapid-Start fluorescent lamps, each one of two of the four transistors in a full-bridge inverter is driven from a commercially available timer by way of simple diode-resistor parallel-combination. Each one of the other two transistors is driven directly from an auxiliary winding on the full-bridge inverter's power output transformer. The fluorescent lamps are series-connected with a current-limiting inductor to form a series-combination; which series-combination is connected across an output winding of the power output transformer. Heating voltage for each of the lamps' cathodes is obtained by way of two series-connected windings: one one the power output transformer and one on the current-limiting inductor. The magnitude of the resulting cathode heating voltage is substantially higher prior to lamp ignition as compared with after lamp ignition.
摘要翻译：在快速启动荧光灯的电子镇流器中，全桥逆变器中的四个晶体管中的两个中的每一个通过简单的二极管电阻器并联组合从市售的定时器驱动。其他两个晶体管中的每一个直接从全桥逆变器的功率输出变压器的辅助绕组驱动。荧光灯与限流电感器串联连接，形成串联组合; 哪个串联组合连接在电力输出变压器的输出绕组上。通过两个串联的绕组获得每个灯阴极的加热电压：一个是功率输出变压器，一个在限流电感上。与点灯后相比，所产生的阴极加热电压的大小明显高于灯点火之前。

88. 发明授权

US5428264A Electronic ballast with controlled operating voltage 失效
标题翻译：具有受控工作电压的电子镇流器
公开(公告)号：US5428264A
公开(公告)日：1995-06-27
申请号：US15584
申请日：1993-02-10
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M7/5383 , H05B41/285 , H05B41/298 , H05B37/02
CPC分类号： H02M7/53832 , H05B41/2855 , H05B41/2856 , H05B41/2985 , Y02B20/188 , Y10S315/07
摘要： In a fluorescent lamp ballast, a high-frequency AC voltage is applied directly across a tuned L-C circuit. The fluorescent lamp is connected in parallel with the capacitor of the L-C circuit and a voltage-limiting means prevents the series-resonating L-C circuit from overloading the source of AC voltage during any period when the lamp is not effective in providing circuit loading. When power is initially applied to the L-C circuit, a control means provides a short circuit across the capacitor; and, by way of a first current transformer, the resulting short circuit current is used for pre-heating the fluorescent lamp cathodes. After about 1.5 second, the control means provides for removal of the short circuit for a period of about 25 milli-seconds, thereby permitting the voltage across the capacitor to grow to a magnitude sufficient to ignite and operate the lamp, while at the same time removing the cathode voltage. If the lamp ignites, the resulting lamp current is then used, by way of a second current transformer, to prevent the control means from re-providing the short circuit. If lamp current does not flow, or if it at any time ceases to flow, the control means will re-provide the short circuit within about 25 milli-second. Thereafter, until power is removed or until an operable lamp is connected, the control means will continuously repeat the cycle of 1.5 second short circuit and 25 milli-seconds open circuit.
摘要翻译：在荧光灯镇流器中，高频交流电压直接施加在调谐的L-C电路上。荧光灯与L-C电路的电容器并联连接，并且在灯在提供电路负载方面不起作用的任何时间段期间，电压限制装置防止串联谐振L-C电路超载交流电压源。当电源最初被施加到L-C电路时，控制装置在电容器两端提供短路; 并且通过第一电流互感器，所得到的短路电流用于预热荧光灯阴极。约1.5秒后，控制装置提供约25毫秒的短路消除，从而允许电容器两端的电压增长到足以点燃和操作灯泡的同时，同时去除阴极电压。如果灯点燃，则通过第二电流互感器将所得的灯电流用于防止控制装置重新提供短路。如果灯电流不流动，或者如果它在任何时候停止流动，则控制装置将在约25毫秒内重新提供短路。此后，直到电力消除或直到连接可操作的灯，控制装置将连续重复1.5秒短路和25毫秒开路的循环。

89. 发明授权

US5426347A Lighting system with emergency standby feature 失效
标题翻译：照明系统具有应急待机功能
公开(公告)号：US5426347A
公开(公告)日：1995-06-20
申请号：US220520
申请日：1994-03-31
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M7/5383 , H03K3/30 , H05B41/24 , H05B41/28 , H05B41/282 , H05B41/295 , H05B41/38 , H05B41/392 , H05B37/00
CPC分类号： H03K3/30 , H02M7/53832 , H05B41/245 , H05B41/28 , H05B41/2827 , H05B41/295 , H05B41/38 , H05B41/3925 , F21S9/022
摘要： A power supply is plugged into an ordinary household electrical outlet and conditionally provides a high frequency current at a power receptacle operative to receive the power plug of an ordinary table lamp; which table lamp has a special fluorescent lamp screwed into its lamp socket. Provided the special fluorescent lamp is indeed screwed into the lamp socket, and provided the lamp'switch is in its ON position, the power supply does in fact supply high frequency current from its power receptacle; which high frequency current powers the special fluorescent lamp at a nominal power level, thereby to provide for high-efficacy luminous output. A storage battery contained within the power supply is kept fully charged by current derived from the power line voltage normally present at the electrical outlet and functions such as to cause high frequency current to be supplied from the output receptacle even if the power line voltage were to be disrupted. To prolong the duration over which the battery can power the fluorescent lamp to a useful light output level, the magnitude of the power provided to the lamp during power failure may be reduced compared with its nominal level.
摘要翻译：电源插入普通的家用电源插座，有条件地在可接收普通台灯电源插头的电源插座上提供高频电流; 哪个台灯有一个特殊的荧光灯拧入灯座。如果特殊荧光灯确实拧入灯座，并且提供灯开关处于其开启位置，电源实际上是从其电源插座提供高频电流; 哪个高频电流以标称功率电平为专用荧光灯供电，从而提供高效率的发光输出。包含在电源内的蓄电池由通常存在于电源插座上的电力线电压产生的电流保持完全充电，并且功能是使得即使电力线电压达到从输出插座提供高频电流被打扰为了延长电池可以将荧光灯供电到有用的光输出电平的持续时间，与其标称电平相比，在停电期间提供给灯的功率的幅度可能会降低。

90. 发明授权

US5416386A Electronic ballast with controlled DC rail voltage 失效
标题翻译：具有受控直流轨电压的电子镇流器
公开(公告)号：US5416386A
公开(公告)日：1995-05-16
申请号：US63075
申请日：1993-05-10
申请人： Ole K. Nilssen
发明人： Ole K. Nilssen
IPC分类号： H02M7/5383 , H02M7/53846 , H02M7/53862 , H02M7/5387 , H03K3/30 , H05B41/24 , H05B41/28 , H05B41/282 , H05B41/295 , H05B41/38 , H05B41/392 , H05B41/29 , H05B41/36
CPC分类号： H02M7/53832 , H02M7/53835 , H02M7/53846 , H02M7/53862 , H02M7/53873 , H03K3/30 , H05B41/245 , H05B41/28 , H05B41/2827 , H05B41/295 , H05B41/38 , H05B41/3925 , Y02B20/185 , Y02B70/1441 , Y10S315/05
摘要： A pre-converter is connected with AC power line voltage and provides DC rail voltage to a current-fed self-oscillating FET bridge inverter ballast. The inverter is loaded by way of a parallel-tuned L-C circuit connected across the bridge inverter's output, thereby providing a sinusoidal AC output voltage thereat. Each of several instant-start fluorescent lamps is connected via a current-limiting capacitor across the bridge inverter's output. The magnitude of the DC supply voltage is so chosen as to cause the magnitude of the AC output voltage to be such as to effectuate proper instant-starting of the fluorescent lamps. Each of the four FET's is driven by a sinusoidal AC voltage derived directly from a positive feedback winding on the tank-inductor of the L-C circuit. To enhance circuit efficiency, the absolute magnitude of the DC rail voltage is controlled to be just higher than the peak absolute magnitude of the AC power line voltage.
摘要翻译：预转换器连接有交流电源线电压，并为电流馈入的自振荡FET桥式逆变镇流器提供直流电压。逆变器通过并联调谐的L-C电路加载在桥式逆变器的输出端，从而在其上提供正弦交流输出电压。几个瞬时启动荧光灯中的每一个都通过一个限流电容器连接在桥式逆变器的输出端。直流电源电压的大小被选择为使得AC输出电压的大小能够实现荧光灯的正确启动。四个FET中的每一个由直接由L-C电路的电容器上的正反馈绕组导出的正弦交流电压驱动。为了提高电路效率，将DC轨电压的绝对幅度控制为高于交流电源线电压的峰值绝对值。

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