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1. 发明授权

US07321200B2 Square wave drive system 失效
标题翻译：方波驱动系统
公开(公告)号：US07321200B2
公开(公告)日：2008-01-22
申请号：US11240115
申请日：2005-09-30
申请人： George C. Henry
发明人： George C. Henry
IPC分类号： H05B37/02
CPC分类号： H05B41/3927 , H05B41/2828 , Y10S315/02 , Y10S315/07
摘要： A power conversion circuit improves lamp operating life and lamp efficiency by driving a fluorescent lamp with a square wave signal. The square wave signal is an alternating current signal with relatively fast transition times. The square wave signal advantageously reduces lamp current crest factor for more efficient operation of the fluorescent lamp.
摘要翻译：功率转换电路通过用方波信号驱动荧光灯来提高灯的使用寿命和灯效率。方波信号是具有较快转换时间的交流信号。方波信号有利地降低灯电流波峰因数，以便更有效地操作荧光灯。

2. 发明申请

US20070018591A1 Device and method for lighting high-voltage discharge lamp 有权
标题翻译：高压放电灯照明装置及方法
公开(公告)号：US20070018591A1
公开(公告)日：2007-01-25
申请号：US10556382
申请日：2004-05-12
申请人： Toshiyuki Noguchi , Yasuhiro Kakimoto
发明人： Toshiyuki Noguchi , Yasuhiro Kakimoto
IPC分类号： H05B41/36
CPC分类号： H05B41/382 , H05B41/2882 , H05B41/2883 , H05B41/2885 , H05B41/386 , H05B41/388 , Y02B20/202 , Y02B20/204 , Y10S315/02 , Y10S315/05 , Y10S315/07
摘要： An operating device control section (4) controls an output current of a DC-DC converter (1), and also controls a commutation frequency of a commutator (2) that converts a direct current output from the DC-DC converter into an alternating current. The operating device control section operates a discharge lamp, at the start of lamp operation, with a predetermined voltage value lower than a rated voltage and a first target current value higher than a rated current, then, at an end of a predetermined high frequency start period (T1) elapsed from the start of lamp operation, controls the commutator to switch from a commutation frequency higher than that during a steady lamp operation to a commutation frequency during the steady lamp operation, and then, after a voltage applied to the discharge lamp increases and reaches a voltage not lower than a predetermined threshold voltage (Vth) which is not higher than the rated voltage, controls the DC-DC converter to switch from the first target current value to a second target current value which is not higher than the rated current to operate the discharge lamp. A temperature of a lamp electrode can be increased quickly and sufficiently to reduce a time required to increase the lamp illuminance, thereby reducing a time required to cause video to be viewable.
摘要翻译：操作装置控制部分（4）控制DC-DC转换器（1）的输出电流，并且还控制将从DC-DC转换器输出的直流电转换成交流电的换向器（2）的换向频率。操作装置控制部分在灯操作开始时以比额定电压低的额定电压和第一目标电流值的预定电压值操作放电灯，然后在预定的高频启动结束时从灯操作开始经过的时间段（T 1），在稳定的灯操作期间，控制换向器从稳定的灯操作期间的换流频率切换到换向频率，然后在施加到放电的电压灯增加并达到不低于额定电压的预定阈值电压（Vth）的电压，控制DC-DC转换器从第一目标电流值切换到不高于额定电流来操作放电灯。可以快速且充分地增加灯电极的温度，以减少增加灯照度所需的时间，从而减少使视频可见的时间。

3. 发明授权

US07042171B1 Multiple-CCFL parallel driving circuit and the associated current balancing control method for liquid crystal display 失效
标题翻译：多CCFL并联驱动电路及相关电流平衡控制方法进行液晶显示
公开(公告)号：US07042171B1
公开(公告)日：2006-05-09
申请号：US10996377
申请日：2004-11-26
申请人： Chang-Hua Lin
发明人： Chang-Hua Lin
IPC分类号： G05F1/00
CPC分类号： H05B41/282 , H05B41/2827 , Y10S315/02 , Y10S315/05
摘要： A multiple-CCFL parallel driving circuit and the associated current balancing control method for LCD are presented, wherein the circuit comprises a plurality of CCFLs for providing the backlight for a LCD; a boosting transformer with a plurality of outputs for providing the driving voltage and current for driving the plurality CCFLs; a plurality of ballast capacitors, the ballast capacitors connect between the boosting transformer and the CCFLs; and a multiple CCFL current balancing circuit. This invention uses a low cost current mirror circuit to equalize the driving current of a plurality of CCFLs and thus significantly improve the uniformity of the displayed image on a large-size LCD.
摘要翻译：提出了一种用于LCD的多CCFL并联驱动电路和相关电流平衡控制方法，其中电路包括用于为LCD提供背光的多个CCFL; 具有多个输出的升压变压器，用于提供用于驱动所述多个CCFL的驱动电压和电流; 多个镇流电容器，镇流电容器连接在升压变压器和CCFL之间; 和多个CCFL电流平衡电路。本发明使用低成本电流镜电路来均衡多个CCFL的驱动电流，从而显着提高大尺寸LCD上的显示图像的均匀性。

4. 发明授权

US06717369B2 Driver circuit with load discharge detection 失效
标题翻译：带负载放电检测的驱动电路
公开(公告)号：US06717369B2
公开(公告)日：2004-04-06
申请号：US10170112
申请日：2002-06-11
申请人： Ben Verhoeven , Alfred Grakist
发明人： Ben Verhoeven , Alfred Grakist
IPC分类号： G09G310
CPC分类号： H05B33/08 , Y02B20/32 , Y10S315/02
摘要： The present invention provides a driver circuit with load discharge detection particularly suitable for use with electro-luminescence (EL) lamps. The driver circuit determines the moment at which the load has been discharged by a defined discharge current. This information is used to start the new charging cycle of the load. The discharge time adapts itself to different load sizes or load voltages. Also, a minimum amount of time is used to discharge the load, so that a maximum amount of time is available for charging the load at a predetermined frequency. As a result, a higher performance can be achieved.
摘要翻译：本发明提供一种具有特别适用于电致发光（EL）灯的负载放电检测的驱动电路。驱动器电路通过限定的放电电流确定负载已放电的时刻。该信息用于启动负载的新充电周期。放电时间适应不同的负载大小或负载电压。此外，使用最小的时间来排出负载，使得可以以预定频率对负载充电的最大时间量。结果，可以实现更高的性能。

5. 发明授权

US06639366B2 Power supply circuit for a cold-cathode fluorescent lamp 有权
公开(公告)号：US06639366B2
公开(公告)日：2003-10-28
申请号：US10247728
申请日：2002-09-20
申请人： Shwang-Shi Bai
发明人： Shwang-Shi Bai
IPC分类号： H05B4136
CPC分类号： H05B41/2824 , H05B41/3927 , Y10S315/02 , Y10S315/05
摘要： A power supply circuit for a cold-cathode fluorescent lamp (CCFL). The power supply circuit converts a DC voltage to a high AC voltage for driving the CCFL. The power supply circuit includes: a switch; a switch control circuit for controlling the switch; a transformer for stepping up the voltage; an energy-preserving unit coupled to the transformer and the DC voltage output circuit; a first diode coupled to the transformer, the energy-preserving unit, and the switch; and a decoupling capacitor coupled to the transformer for outputting the high AC voltage.

6. 发明授权

US06472830B2 Discharge lamp lighting circuit 失效
标题翻译：放电灯点亮电路
公开(公告)号：US06472830B2
公开(公告)日：2002-10-29
申请号：US09764248
申请日：2001-01-17
申请人： Masayasu Ito , Hitoshi Takeda
发明人： Masayasu Ito , Hitoshi Takeda
IPC分类号： G05F100
CPC分类号： H05B41/288 , Y10S315/02 , Y10S315/05 , Y10S315/07
摘要： A discharge lamp lighting circuit is provided with a DC power source circuit, a DC-AC conversion circuit, and start circuits. A primary circuit of a transformer in each start circuit has a capacitor and a switch element. When the voltage across the capacitor exceeds a threshold value, or when the switch element has electrical continuity, a high voltage is supplied separately to the discharge lamps from the primary coil through the secondary coil. A common voltage supply circuit supplies the voltage to the primary circuit of each start circuit from the DC power source circuit or the DC-AC conversion circuit.
摘要翻译：放电灯点亮电路设置有DC电源电路，DC-AC转换电路和启动电路。每个起动电路中的变压器的初级电路具有电容器和开关元件。当电容器两端的电压超过阈值时，或当开关元件具有电连续性时，通过次级线圈从初级线圈向放电灯分别提供高电压。公共电压供给电路从直流电源电路或直流 - 交流转换电路将电压提供给每个启动电路的一次电路。

7. 发明授权

US06400097B1 Low wattage fluorescent lamp 有权
标题翻译：低瓦数荧光灯
公开(公告)号：US06400097B1
公开(公告)日：2002-06-04
申请号：US09682779
申请日：2001-10-18
申请人： Feng Jin , Thomas F. Soules , David Kachmarick
发明人： Feng Jin , Thomas F. Soules , David Kachmarick
IPC分类号： H05B4116
CPC分类号： H01J61/72 , H01J61/20 , H01J2261/38 , Y10S315/02
摘要： A low-wattage mercury vapor discharge fluorescent lamp is provided for use with existing 110V high frequency electronic ballasts. The lamp has a discharge sustaining fill gas of mercury vapor and an inert gas that does not require a starting aid. The inert gas has 40-100 vol. % krypton, balance argon, and the fill gas has a total pressure of 0.5-3 torr. The phosphor layer has a coating weight of 2.3-4.3 mg/cm2.
摘要翻译：提供了一个低瓦数汞蒸汽放电荧光灯，用于现有的110V高频电子镇流器。该灯具有放电维持的汞蒸气填充气体和不需要起动辅助的惰性气体。惰性气体有40-100vol。％氪，平衡氩气，填充气体的总压力为0.5-3乇。荧光体层的涂层重量为2.3-4.3mg / cm 2。

8. 发明授权

US06259215B1 Electronic high intensity discharge ballast 失效
标题翻译：电子高强度放电镇流器
公开(公告)号：US06259215B1
公开(公告)日：2001-07-10
申请号：US09136976
申请日：1998-08-20
申请人： Daniel Roman
发明人： Daniel Roman
IPC分类号： G05F100
CPC分类号： H05B41/2887 , H05B41/2921 , H05B41/3925 , Y10S315/02 , Y10S315/04 , Y10S315/07
摘要： A microprocessor controlled high frequency electronic ballast for gas discharge lamps in which the dimming is accomplished by varying the frequency of the square wave generated by the ballast. Prior to ignition the ballast generates a high frequency square wave to preheat the lamp filament. The microprocessor, which is programmable, controls the operating and preheating frequencies of the ballast. The ballast demonstrates very few losses due to the efficiency gained by operating at high frequencies.
摘要翻译：用于气体放电灯的微处理器控制的高频电子镇流器，其中通过改变由镇流器产生的方波的频率来实现调光。在点燃之前，镇流器产生高频方波来预热灯丝。可编程的微处理器控制镇流器的工作和预热频率。由于在高频下运行的效率，镇流器显示出极少的损耗。

9. 发明授权

US6118227A High frequency electronic drive circuits for fluorescent lamps 失效
标题翻译：荧光灯高频电子驱动电路
公开(公告)号：US6118227A
公开(公告)日：2000-09-12
申请号：US86942
申请日：1998-05-29
申请人： Robert Beland
发明人： Robert Beland
IPC分类号： H05B41/232 , H05B41/282 , H05B41/16
CPC分类号： H05B41/2822 , H05B41/2325 , Y10S315/02 , Y10S315/05
摘要： A high-frequency power supply system for a plurality of fluorescent tubes includes an inverter type power supply connected to the primary side of the high-voltage transformer. The secondary side of the high-voltage transformer includes two high-voltage coils arranged to provide power to four hot cathode fluorescent tubes, wherein each of said high-voltage coils is connected to two of said hot cathode fluorescent tubes connected in parallel. The secondary side of the high-voltage transformer also includes supplemental coils arranged to heat filaments of the hot cathode fluorescent tubes. The power supply also includes at least one capacitor and at least one inductor connected to the secondary side and arranged in a manner that the secondary side provides power to a substantially resistive load.
摘要翻译：用于多个荧光管的高频电源系统包括连接到高压变压器的初级侧的逆变器型电源。高压变压器的二次侧包括两个高电压线圈，其布置成向四个热阴极荧光管提供电力，其中每个所述高压线圈连接到并联连接的两个所述热阴极荧光管。高压变压器的次级侧还包括布置成加热热阴极荧光管的细丝的补充线圈。电源还包括至少一个电容器和连接到次级侧的至少一个电感器，并且以次级侧向基本上电阻的负载提供电力的方式布置。

10. 发明授权

US6011362A Magnetic ballast adaptor circuit 失效
标题翻译：电磁镇流器适配器电路
公开(公告)号：US6011362A
公开(公告)日：2000-01-04
申请号：US753044
申请日：1996-11-19
申请人： Mihail S. Moisin
发明人： Mihail S. Moisin
IPC分类号： H05B41/295 , H05B41/392 , G05F1/00
CPC分类号： H05B41/295 , H05B41/3927 , Y10S315/02
摘要： A method and apparatus for efficiently driving a load coupled to a ballast is described. A switching element coupled between a pair of ballast terminals converts a low frequency drive signal to a high frequency drive signal which is provided to the load.
摘要翻译：描述了一种用于有效驱动耦合到镇流器的负载的方法和装置。耦合在一对镇流器端子之间的开关元件将低频驱动信号转换成提供给负载的高频驱动信号。

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