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1. 发明申请

US20120049741A1 CURRENT BALANCE SCHEME FOR DRIVING LED STRINGS AND THE METHOD THEREOF 审中-公开
标题翻译：目前用于驱动LED灯的平衡方案及其方法
公开(公告)号：US20120049741A1
公开(公告)日：2012-03-01
申请号：US13216205
申请日：2011-08-23
申请人： Zhijun Ye , Yuancheng Ren , Lei Du , Naixing Kuang , Kaiwei Yao , James C. Moyer , Eric Yang
发明人： Zhijun Ye , Yuancheng Ren , Lei Du , Naixing Kuang , Kaiwei Yao , James C. Moyer , Eric Yang
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , G09G3/3406 , G09G2330/02 , G09G2330/021 , H05B33/0827 , Y02B20/341
摘要： A current balance scheme for driving LED strings is disclosed. A power supply unit provides a driving voltage to drive a plurality of LED strings. A feedback selector is configured to select a minimum feedback signal indicative of the driving voltage to the power supply unit for regulating the driving voltage. Based on the minimum feedback signal, the driving voltage gets a minimum value to sufficiently drive the plurality of LED strings. A protection circuit is configured to protect the current balance circuit from high voltage especially when there is a shorted LED string.
摘要翻译：公开了用于驱动LED串的电流平衡方案。电源单元提供驱动电压以驱动多个LED串。反馈选择器被配置为选择表示用于调节驱动电压的电源单元的驱动电压的最小反馈信号。基于最小反馈信号，驱动电压达到最小值以充分驱动多个LED串。保护电路被配置为保护电流平衡电路免受高压，特别是当存在短路的LED串时。

2. 发明授权

US08054655B2 Tail current control of isolated converter and apparatus thereof 有权
标题翻译：隔离变换器的尾电流控制及其装置
公开(公告)号：US08054655B2
公开(公告)日：2011-11-08
申请号：US12264207
申请日：2008-11-03
申请人： James C. Moyer , Kaiwei Yao , Yuxin Li , Junming Zhang , Huanyu Lu
发明人： James C. Moyer , Kaiwei Yao , Yuxin Li , Junming Zhang , Huanyu Lu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： An inventive isolated converter which exempts the auxiliary isolation devices with accurate voltage regulation is disclosed. The converter includes the primary side circuit with a primary controller controlling the on and off of the primary switch and a secondary side circuit with a secondary controller controlling the on and off of the secondary synchronous rectifier. The isolated converter uses the secondary controller to turn on the secondary synchronous rectifier after the secondary current decreases to zero to generate a negative tail current and turns off the secondary synchronous rectifier at a reference tail current peak value to generate a reflected negative current at the primary side circuit for turning on the primary switch.
摘要翻译：公开了一种免除具有精确电压调节的辅助隔离装置的本发明的隔离转换器。转换器包括初级侧电路，其中主控制器控制主开关的导通和关断;以及次级侧电路，其次级控制器控制次同步整流器的导通和关断。在二次电流下降到零以后，隔离转换器使用次级控制器接通次级同步整流器，以产生负尾电流，并以参考尾电流峰值关断次同步整流器，以在初级电流产生反射负电流打开主开关的侧面电路。

3. 发明授权

US08410716B2 Control of multi-string LED array 有权
标题翻译：多串LED阵列控制
公开(公告)号：US08410716B2
公开(公告)日：2013-04-02
申请号：US12641212
申请日：2009-12-17
申请人： Kaiwei Yao , James C. Moyer
发明人： Kaiwei Yao , James C. Moyer
IPC分类号： H05B37/02
CPC分类号： H05B33/0827 , Y10T307/438
摘要： Apparatus, systems, and methods related to controlling multiple strings of light emitting diodes (LEDs) are disclosed. An apparatus may include internal current limiter circuits that are each coupled in series with an associated string of LEDs and are configured to at least partially regulate the current through the associated string of LEDs. The apparatus may also be configured to control external current limiter circuits that are each coupled in series with a corresponding internal current limiter circuit and the string of LEDs associated with the corresponding internal current limiter circuit.
摘要翻译：公开了与控制多串发光二极管（LED）相关的装置，系统和方法。装置可以包括内部限流器电路，每个电流限制器电路与相关联的一串LED串联耦合，并且被配置为至少部分地调节通过相关联的LED串的电流。该装置还可以被配置为控制外部限流器电路，其每个与相应的内部限流器电路和与相应的内部限流器电路相关联的LED串串联耦合。

4. 发明申请

US20110148323A1 CONTROL OF MULTI-STRING LED ARRAY 有权
标题翻译：多串LED阵列的控制
公开(公告)号：US20110148323A1
公开(公告)日：2011-06-23
申请号：US12641212
申请日：2009-12-17
申请人： Kaiwei Yao , James C. Moyer
发明人： Kaiwei Yao , James C. Moyer
IPC分类号： H05B37/02 , H02J4/00
CPC分类号： H05B33/0827 , Y10T307/438
摘要： Apparatus, systems, and methods related to controlling multiple strings of light emitting diodes (LEDs) are disclosed. An apparatus may include internal current limiter circuits that are each coupled in series with an associated string of LEDs and are configured to at least partially regulate the current through the associated string of LEDs. The apparatus may also be configured to control external current limiter circuits that are each coupled in series with a corresponding internal current limiter circuit and the string of LEDs associated with the corresponding internal current limiter circuit.
摘要翻译：公开了与控制多串发光二极管（LED）相关的装置，系统和方法。装置可以包括内部限流器电路，每个电流限制器电路与相关联的一串LED串联耦合，并且被配置为至少部分地调节通过相关联的LED串的电流。该装置还可以被配置为控制外部限流器电路，其每个与相应的内部限流器电路和与相应的内部限流器电路相关联的LED串串联耦合。

5. 发明授权

US07804254B2 Method and circuit for short-circuit and over-current protection in a discharge lamp system 失效
标题翻译：放电灯系统中短路和过流保护的方法和电路
公开(公告)号：US07804254B2
公开(公告)日：2010-09-28
申请号：US11407599
申请日：2006-04-19
申请人： Kaiwei Yao , James C. Moyer , Wei Chen
发明人： Kaiwei Yao , James C. Moyer , Wei Chen
IPC分类号： H05B37/02 , H02H7/122
CPC分类号： H05B41/2985
摘要： The method and circuit of the present invention provides short-circuit detection and protection in a discharge lamp system. The transformer's primary current is sensed and used to provide short-circuit protection of the secondary winding side or high voltage side. The system and method with the present invention provides short-circuit detection and protection even when the transformer's secondary winding is shorted.
摘要翻译：本发明的方法和电路在放电灯系统中提供短路检测和保护。变压器的初级电流被感测并用于提供次级绕组侧或高压侧的短路保护。本发明的系统和方法即使在变压器的次级绕组短路时也提供短路检测和保护。

6. 发明授权

US08102129B2 Method and circuit for short-circuit and over-current protection in a discharge lamp system 有权
标题翻译：放电灯系统中短路和过流保护的方法和电路
公开(公告)号：US08102129B2
公开(公告)日：2012-01-24
申请号：US12886935
申请日：2010-09-21
申请人： Kaiwei Yao , James C. Moyer , Wei Chen
发明人： Kaiwei Yao , James C. Moyer , Wei Chen
IPC分类号： H05B37/02 , H02H7/122
CPC分类号： H05B41/2985
摘要： Embodiments of the present technology provide short-circuit detection and protection suitable for a discharge lamp system. In several embodiments, the transformer's primary current is sensed and used to provide short-circuit protection of the secondary winding side or high voltage side.
摘要翻译：本技术的实施例提供适用于放电灯系统的短路检测和保护。在几个实施例中，变压器的初级电流被感测并用于提供次级绕组侧或高压侧的短路保护。

7. 发明申请

US20110007441A1 METHOD AND CIRCUIT FOR SHORT-CIRCUIT AND OVER-CURRENT PROTECTION IN A DISCHARGE LAMP SYSTEM 有权
标题翻译：放电灯系统中短路和过流保护的方法与电路
公开(公告)号：US20110007441A1
公开(公告)日：2011-01-13
申请号：US12886935
申请日：2010-09-21
申请人： Kaiwei Yao , James C. Moyer , Wei Chen
发明人： Kaiwei Yao , James C. Moyer , Wei Chen
IPC分类号： H02H3/00 , G01R31/02
CPC分类号： H05B41/2985
摘要： Embodiments of the present technology provide short-circuit detection and protection suitable for a discharge lamp system. In several embodiments, the transformer's primary current is sensed and used to provide short-circuit protection of the secondary winding side or high voltage side.
摘要翻译：本技术的实施例提供适用于放电灯系统的短路检测和保护。在几个实施例中，变压器的初级电流被感测并用于提供次级绕组侧或高压侧的短路保护。

8. 发明申请

US20100110732A1 TAIL CURRENT CONTROL OF ISOLATED CONVERTER AND APPARATUS THEREOF 有权
标题翻译：隔离转换器的尾流电流控制及其设备
公开(公告)号：US20100110732A1
公开(公告)日：2010-05-06
申请号：US12264207
申请日：2008-11-03
申请人： James C. Moyer , Kaiwei Yao , Yuxin Li , Junming Zhang , Huanyu Lu
发明人： James C. Moyer , Kaiwei Yao , Yuxin Li , Junming Zhang , Huanyu Lu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： An inventive isolated converter which exempts the auxiliary isolation devices with accurate voltage regulation is disclosed. The converter includes the primary side circuit with a primary controller controlling the on and off of the primary switch and a secondary side circuit with a secondary controller controlling the on and off of the secondary synchronous rectifier. The isolated converter uses the secondary controller to turn on the secondary synchronous rectifier after the secondary current decreases to zero to generate a negative tail current and turns off the secondary synchronous rectifier at a reference tail current peak value to generate a reflected negative current at the primary side circuit for turning on the primary switch.
摘要翻译：公开了一种免除具有精确电压调节的辅助隔离装置的本发明的隔离转换器。转换器包括初级侧电路，其中主控制器控制主开关的导通和关断;以及次级侧电路，其次级控制器控制次同步整流器的导通和关断。在二次电流下降到零以后，隔离转换器使用次级控制器接通次级同步整流器，以产生负尾电流，并以参考尾电流峰值关断次同步整流器，以在初级电流产生反射负电流打开主开关的侧面电路。

9. 发明申请

US20120056543A1 BYPASS CIRCUITRY FOR SERIALLY COUPLED LIGHT EMITTING DIODES AND ASSOCIATED METHODS OF OPERATION 有权
标题翻译：用于串联发光二极管的旁路电路和相关的操作方法
公开(公告)号：US20120056543A1
公开(公告)日：2012-03-08
申请号：US13051437
申请日：2011-03-18
申请人： Eric Yang , Kaiwei Yao
发明人： Eric Yang , Kaiwei Yao
IPC分类号： H05B37/00
CPC分类号： H05B33/089
摘要： The present technology is generally related to LED bypass circuits and associated methods of operation. In one embodiment, an LED bypass circuit includes a monitoring circuit and a bypass switch. The monitoring circuit is coupled to the LED to monitor the differential voltage across the LED. The bypass switch is coupled to the LED in parallel. When an open status is detected by the monitoring circuit, the bypass switch is turned on to bypass the LED.
摘要翻译：本技术一般与LED旁路电路及相关操作方法有关。在一个实施例中，LED旁路电路包括监视电路和旁路开关。监控电路耦合到LED以监测LED两端的差分电压。旁路开关并联耦合到LED。当监控电路检测到打开状态时，旁路开关接通以旁路LED。

10. 发明申请

US20120044014A1 Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods 有权
标题翻译：用于从电源提取功率的开关电路及相关方法
公开(公告)号：US20120044014A1
公开(公告)日：2012-02-23
申请号：US13211997
申请日：2011-08-17
申请人： Anthony J. Stratakos , Michael D. McJimsey , Ilija Jergovic , Alexandr Ikriannikov , Artin Der Minassians , Kaiwei Yao , David B. Lidsky , Marco A. Zuniga , Ana Borisavljevic
发明人： Anthony J. Stratakos , Michael D. McJimsey , Ilija Jergovic , Alexandr Ikriannikov , Artin Der Minassians , Kaiwei Yao , David B. Lidsky , Marco A. Zuniga , Ana Borisavljevic
IPC分类号： G11C5/14 , G05F1/10
CPC分类号： H02J1/102 , H01L2224/16225 , H01L2224/48091 , H01L2224/48227 , H02J3/383 , H02J2001/106 , H02M3/158 , H03K17/102 , H03K17/122 , H03K17/145 , H03K17/693 , H03K2217/0036 , H03K2217/0054 , Y02E10/563 , Y10T307/685 , Y10T307/696 , Y10T307/707 , H01L2924/00014
摘要： An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is also electrically coupled across the first output port and is adapted to provide a path for current flowing through the first output port when the first transistor is in its non-conductive state. The integrated circuit chip additionally includes first driver circuitry for driving gates of the first and second transistors to cause the transistors to switch between their conductive and non-conductive states. The integrated circuit chip further includes first controller circuitry for controlling the first driver circuitry such that the first and second transistors switch between their conductive and non-conductive states to at least substantially maximize an amount of electric power extracted from an electric power source electrically coupled to the first input port.
摘要翻译：集成电路芯片包括第一输入端口，第一输出端口以及跨越第一输入端口串联电耦合的第一和第二晶体管。第二晶体管也电耦合跨越第一输出端口，并且适于在第一晶体管处于非导通状态时提供流过第一输出端口的电流的路径。集成电路芯片还包括用于驱动第一和第二晶体管的栅极的第一驱动器电路，以使晶体管在其导通状态和非导通状态之间切换。集成电路芯片还包括用于控制第一驱动器电路的第一控制器电路，使得第一和第二晶体管在其导电状态和非导通状态之间切换至少基本上最大化从电耦合到第一个输入端口。

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