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1. 发明申请

US20160105941A1 LOAD DRIVING APPARATUS WITH WIDE VOLTAGE INPUT 审中-公开
标题翻译：带宽电压输入的负载驱动装置
公开(公告)号：US20160105941A1
公开(公告)日：2016-04-14
申请号：US14809267
申请日：2015-07-26
申请人： Beyond Innovation Technology Co., Ltd.
发明人： Zhen-Chun Liu , Chen-Lung Kao
IPC分类号： H05B37/02
CPC分类号： H05B41/2827
摘要： A load driving apparatus is provided, which includes: a DC high voltage generation circuit, configured to selectively receive one of first and second AC input voltages different to each other, and process the received AC input voltage to obtain and provide a DC high voltage, wherein the DC high voltage obtained by processing either the first or second AC input voltages is substantially or approximately the same; a switching circuit, configured to selectively output the DC high voltage or a ground potential in response to two complementary PWM signals, so as to provide an AC signal; a transformer, having a primary side receiving the AC signal from the switching circuit, and a secondary side providing a driving signal to drive a light-emitting load in response to the AC signal; and a control circuit, configured to generate the two complementary PWM signals to control switching of the switching circuit.
摘要翻译：提供了一种负载驱动装置，包括：DC高电压产生电路，被配置为选择性地接收彼此不同的第一和第二AC输入电压中的一个，并且处理所接收的AC输入电压以获得并提供DC高电压，其中通过处理所述第一或第二AC输入电压获得的DC高电压基本上或近似相同; 开关电路，被配置为响应于两个互补的PWM信号选择性地输出所述DC高电压或接地电位，以便提供AC信号; 变压器，其具有从开关电路接收AC信号的初级侧，以及响应于AC信号提供驱动信号来驱动发光负载的次级侧; 以及控制电路，被配置为产生所述两个互补PWM信号以控制所述开关电路的切换。

2. 发明申请

US20150271882A1 LED (LIGHT-EMITTING DIODE) STRING DERIVED CONTROLLER POWER SUPPLY 有权
标题翻译： LED（发光二极管）发射控制器电源
公开(公告)号：US20150271882A1
公开(公告)日：2015-09-24
申请号：US14220472
申请日：2014-03-20
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Eric King , Rahul Singh
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0824 , H05B33/0827 , H05B33/083 , H05B33/0845 , H05B37/02 , H05B39/047 , H05B41/28 , H05B41/2827 , Y02B20/345 , Y02B20/346 , Y02B20/347
摘要： An LED lighting device includes an auxiliary power supply that supplies power to a control circuit of the LED lighting device that receives an input from a terminal of a light-emitting diode (LED) string of the lighting device that has a substantially lower voltage than the line voltage to which the lighting device is connected. The terminal may be within the LED string, or may be an end of the string. A linear regulator may be operated from the voltage drop across a number of the LEDs in the string so that the energy wasted by the auxiliary power supply is minimized. In other designs, the auxiliary power supply may be intermittently connected in series with the LED string only when needed. The intermittent connection can be used to forward bias a portion of the LED string when the voltage supplied to the LED string is low, increasing overall brightness.
摘要翻译： LED照明装置包括辅助电源，其向LED照明装置的控制电路供电，所述控制电路接收来自所述照明装置的发光二极管（LED）串的端子的输入，所述发光二极管（LED）照明装置所连接的线路电压。终端可以在LED串内，或者可以是串的末端。线性调节器可以从串中的多个LED上的电压降来操作，使得由辅助电源浪费的能量最小化。在其他设计中，辅助电源可以仅在需要时与LED串串联连接。当提供给LED串的电压低时，可以使用间歇连接来对LED串的一部分进行偏置，从而提高整体亮度。

3. 发明授权

US09055619B1 Toroidal transformer transistor driver for electrical ballast 有权
标题翻译：用于电气镇流器的环形变压器晶体管驱动器
公开(公告)号：US09055619B1
公开(公告)日：2015-06-09
申请号：US13155588
申请日：2011-06-08
申请人： Alejandro Cavolina
发明人： Alejandro Cavolina
IPC分类号： H05B37/00
CPC分类号： H05B37/00 , H05B41/2827
摘要： An electrical ballast system having a toroidal current transformer having a core with a gap of predetermined dimensions, a primary winding, and a secondary winding. The primary winding is connected in series to a lamp load circuit and the secondary winding is connected to a transistor driver having an input. The improvement comprises the reduction of the effective area of the transformer core a sufficient amount to limit the output voltage amplitude of the secondary winding within a predetermined range compatible with the input of the transistor driver. The reduction of the effective area of the core is achieved with a cut or gap that covers up to 75% of the effective cross-sectional area. The resulting transformer will operate linearly for low load currents passing through the lamp and primary. For load currents above a predetermined magnitude, the core is saturated and additional magnetic flux lines pass through the gap, attenuated. The waveform of the current through the primary is thus kept in the secondary, attenuated, thereby protecting the transistors' inputs connected to the secondary.
摘要翻译：一种具有环形电流互感器的电气镇流器系统，具有具有预定尺寸间隙的芯，初级绕组和次级绕组。初级绕组串联连接到灯负载电路，次级绕组连接到具有输入的晶体管驱动器。该改进包括将变压器铁芯的有效面积减小到足以将次级绕组的输出电压幅度限制在与晶体管驱动器的输入兼容的预定范围内。芯的有效面积的减小是通过覆盖高达有效横截面面积的75％的切口或间隙实现的。所产生的变压器将对通过灯和初级的低负载电流线性运行。对于高于预定幅度的负载电流，磁芯是饱和的，另外的磁通线穿过间隙，被衰减。因此，通过初级的电流的波形保持在次级中，被衰减，从而保护连接到次级的晶体管的输入。

4. 发明申请

US20150145432A1 DRIVE SYSTEM OF SEMICONDUCTOR LIGHT SOURCE, AND SEMICONDUCTOR LIGHTING DEVICE 有权
标题翻译：半导体光源驱动系统和半导体照明器件
公开(公告)号：US20150145432A1
公开(公告)日：2015-05-28
申请号：US14404775
申请日：2013-05-22
申请人： Opple Lightning Co., Ltd.
发明人： Xiaoming Qi
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , G09G3/3406 , H02M3/156 , H05B33/0818 , H05B33/0851 , H05B41/282 , H05B41/2827 , Y02B20/185 , Y02B20/346 , Y10S315/05 , Y10S315/07
摘要： Disclosed are a driving system for a semiconductor light source and a semiconductor lighting device. The driving system includes a transformer, the transformer comprising a first coil (201) and a second coil (202) coupled to each other, the second coil (202) being used for receiving an input voltage; a switching means which is connected in series to the second coil (202) of the transformer and used for controlling energy-storing and energy-releasing of the second coil (202); and an outputting means which is connected in parallel to the second coil (202) of the transformer and used for supplying power to the semiconductor light source, wherein an induced signal is generated on the first coil (201) of the transformer due to a coupling effect between the first coil and the second coil (202) and is used for controlling the turn-on or turn-off of the switching means.
摘要翻译：公开了一种用于半导体光源和半导体照明装置的驱动系统。所述驱动系统包括变压器，所述变压器包括彼此耦合的第一线圈（201）和第二线圈（202），所述第二线圈（202）用于接收输入电压; 与所述变压器的所述第二线圈（202）串联连接并用于控制所述第二线圈（202）的储能和能量释放的开关装置; 以及与变压器的第二线圈（202）并联连接并用于向半导体光源供电的输出装置，其中由于耦合而在变压器的第一线圈（201）上产生感应信号第一线圈和第二线圈（202）之间的效应，并且用于控制开关装置的导通或关断。

5. 发明申请

US20140077704A1 FAULT CONDITION OF DETECTION CIRCUIT 有权
标题翻译：检测电路故障状态
公开(公告)号：US20140077704A1
公开(公告)日：2014-03-20
申请号：US13621358
申请日：2012-09-17
申请人： Driss Baba , Ayan Choudhury , Joseph Parisella
发明人： Driss Baba , Ayan Choudhury , Joseph Parisella
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/0845 , H05B41/2827 , H05B41/2855 , H05B41/2985
摘要： A ballast comprises an inverter having a transformer comprising a core, a primary winding, and a secondary winding for connecting to a lamp and providing voltage thereto. The ballast includes a fault condition detection circuit connected to the inverter for disabling the inverter to discontinue energization of the lamp when a fault condition occurs. The fault condition detection circuit comprises an other primary winding wound on the core of the transformer for receiving a voltage signal proportional to a voltage across the secondary winding, a voltage blocking circuit connected to the other primary winding for receiving the voltage signal from the other primary winding, and a capacitor connected between the voltage blocking circuit and ground potential. The voltage blocking circuit is configured to selectively conduct and block the received voltage signal as a function of the frequency of the received voltage signal.
摘要翻译：镇流器包括具有变压器的逆变器，变压器包括用于连接到灯并提供电压的铁芯，初级绕组和次级绕组。镇流器包括连接到逆变器的故障状态检测电路，用于当发生故障时禁止逆变器停止灯的通电。故障状态检测电路包括缠绕在变压器的磁芯上的另一个初级绕组，用于接收与次级绕组两端的电压成比例的电压信号，连接到另一个初级绕组的电压阻断电路，用于从另一个初级绕组接收电压信号绕组和连接在电压阻断电路和地电位之间的电容器。电压阻断电路被配置为根据接收的电压信号的频率选择性地导通和阻断接收的电压信号。

6. 发明授权

US08378962B2 LCD backlight driving device with an isolating transformer 失效
标题翻译：带背光驱动装置的隔离变压器
公开(公告)号：US08378962B2
公开(公告)日：2013-02-19
申请号：US12832984
申请日：2010-07-08
申请人： Cheng-Chia Hsu , Yu-Cheng Pan , Ho-Wen Chen
发明人： Cheng-Chia Hsu , Yu-Cheng Pan , Ho-Wen Chen
IPC分类号： G09G3/36
CPC分类号： H05B41/2827
摘要： An LCD backlight driving device with an isolating transformer comprises a DC power supply, a square wave generator, a square wave controller, said isolating transformer and a driver transformer; wherein said isolating transformer has a primary side connected to said square wave generator and a secondary side connected to said driver transformer, since said isolating transformer is placed between said square wave generator and said driver transformer, it helps to effectively shorten a safety distance required for setting up said driver transformer; the present invention uses said isolating transformer to shorten the safety distance required than that of using said driver transformer directly and to decrease an area in implementing a circuit board and to cut cost of said device.
摘要翻译：具有隔离变压器的LCD背光驱动装置包括直流电源，方波发生器，方波控制器，所述隔离变压器和驱动变压器; 其中所述隔离变压器具有连接到所述方波发生器的初级侧和连接到所述驱动变压器的次级侧，因为所述隔离变压器被放置在所述方波发生器和所述驱动变压器之间，所以有助于有效地缩短设置驱动变压器; 本发明使用所述隔离变压器来缩短直接使用所述驱动变压器所需的安全距离，并且减少实现电路板的面积并降低所述装置的成本。

7. 发明授权

US08258715B2 Fluorescent lamp with balanced lamp tube electric potentials 有权
标题翻译：荧光灯具有平衡灯管电位
公开(公告)号：US08258715B2
公开(公告)日：2012-09-04
申请号：US12764911
申请日：2010-04-21
申请人： Li-Jun Zhao , Tong Zhou
发明人： Li-Jun Zhao , Tong Zhou
IPC分类号： H05B41/16
CPC分类号： H05B41/2827
摘要： A fluorescent lamp includes three transformers, a power supply, a converter, and four lamp tubes. The converter converts a direct current (DC) provided by the power supply into an alternating current (AC) generated in a first transformer and a second transformer for driving the four lamp tubes to emit light. The third transformer is connected to the four lamp tubes to balance working electric potentials of the four lamp tubes.
摘要翻译：荧光灯包括三个变压器，电源，转换器和四个灯管。转换器将由电源提供的直流（DC）转换为在第一变压器中产生的交流电（AC）和用于驱动四个灯管发光的第二变压器。第三个变压器连接到四个灯管，以平衡四个灯管的工作电位。

8. 发明授权

US08217585B2 Balancer board for backlight device 失效
标题翻译：平衡板用于背光装置
公开(公告)号：US08217585B2
公开(公告)日：2012-07-10
申请号：US12537782
申请日：2009-08-07
申请人： Seiichi Tsunoda
发明人： Seiichi Tsunoda
IPC分类号： H05B41/26 , H05B41/24
CPC分类号： H05B41/2827
摘要： In a balancer board for a back light device, a plurality of shunt coils configured to transfer power from an inverter to a plurality of fluorescent tubes arrayed in a line are arrayed in a line in a direction which is the same as the direction in which the fluorescent tubes are arrayed, and respective patterns formed on front and rear surfaces of the balancer board so as to supply the power from the inverter to each of the plurality of shunt coils are formed such that the pattern formed on one surface is located apart from the pattern formed on the other surface with a predetermined distance left therebetween while mutually intersecting three-dimensionally in respective planes.
摘要翻译：在背光装置的平衡板中，将从逆变器输出的多个分流线圈配置成排列成一列的多个荧光管，沿与该方向相同的方向排列成一行，排列荧光管，并且形成在平衡器板的前表面和后表面上以便将来自逆变器的电力提供给多个并联线圈中的每一个的各个图案被形成为使得形成在一个表面上的图案位于在另一个表面上形成有预定距离的图案，同时在各个平面中三维地相互交叉。

9. 发明授权

US08212489B2 Circuit arrangement and method for starting and operating one or more discharge lamps 失效
标题翻译：用于启动和操作一个或多个放电灯的电路布置和方法
公开(公告)号：US08212489B2
公开(公告)日：2012-07-03
申请号：US12523659
申请日：2007-01-17
申请人： Harald Schmitt
发明人： Harald Schmitt
IPC分类号： G05F1/00
CPC分类号： H05B41/2827 , Y02B20/185
摘要： A circuit arrangement for starting and operating one or more discharge lamps comprising a self-oscillating inverter (1), a resonant circuit (2), a low-pressure discharge lamp (5), a starting voltage controller (3) with a variable resistor (R1), and a lamp filament heating controller (4), wherein the lamp filament heating controller includes an additional variable resistor (R2) in the resonant circuit, which variable resistor measures the current flowing in the resonant circuit, and, in the event of a threshold value being exceeded, disconnects the half-bridge transistor (Q2) and thus limits the current flowing in the resonant circuit, this additional variable resistor (R2) being bypassed by a switch (Q3), depending on the lamp state.
摘要翻译：一种用于启动和操作一个或多个放电灯的电路装置，包括自振荡逆变器（1），谐振电路（2），低压放电灯（5），具有可变电阻器的起动电压控制器（3）（R1）和灯丝加热控制器（4），其中灯丝加热控制器在谐振电路中包括附加可变电阻器（R2），该可变电阻器测量在谐振电路中流动的电流，并且在事件超过阈值，断开半桥晶体管（Q2），从而限制在谐振电路中流动的电流，该附加可变电阻器（R2）由开关（Q3）旁路，这取决于灯的状态。

10. 发明授权

US08179053B2 Power supply for an LCD display 失效
标题翻译： LCD显示屏的电源
公开(公告)号：US08179053B2
公开(公告)日：2012-05-15
申请号：US12209842
申请日：2008-09-12
申请人： Yung-Lin Lin , Da Liu
发明人： Yung-Lin Lin , Da Liu
IPC分类号： H05B41/36 , H05B37/00
CPC分类号： H05B41/282 , H05B41/2827 , H05B41/2828 , H05B41/3921 , Y02B20/183
摘要： A power supply system is provided for a multiple lamp LCD panel. In one aspect, the power supply includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series to thereby reduce the stress on each transformer. For LCD panels that include longer CCFLs, a power supply is provided that includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series and each lamp is coupled to two secondary sides of the transformers, thereby reducing the problems associated with longer CCFL tubes. In any of the embodiments, the power supply can be adapted to convert a high voltage DC signal to high voltage AC used to power the lamps.
摘要翻译：为多灯LCD面板提供电源系统。一方面，电源包括用于驱动多个相应CCFL的多个变压器。每个变压器的初级侧串联耦合，从而减小每个变压器的应力。对于包括较长CCFL的LCD面板，提供了包括用于驱动多个相应CCFL的多个变压器的电源。每个变压器的主要侧面串联耦合，并且每个灯耦合到变压器的两个次级侧，从而减少与较长CCFL管相关联的问题。在任何实施例中，电源可以适于将高压DC信号转换成用于为灯供电的高压AC。

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