专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 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。

3. 发明申请

US20090140655A1 SIMPLE PROTECTION CIRCUIT AND ADAPTIVE FREQUENCY SWEEPING METHOD FOR CCFL INVERTER 失效
标题翻译： CCFL逆变器的简单保护电路和自适应频率扫描方法
公开(公告)号：US20090140655A1
公开(公告)日：2009-06-04
申请号：US12166140
申请日：2008-07-01
申请人： Junming Zhang , Yuancheng Ren , Kaiwei Yao , Eric Yang
发明人： Junming Zhang , Yuancheng Ren , Kaiwei Yao , Eric Yang
IPC分类号： H05B37/02
CPC分类号： H05B41/2855
摘要： A CCFL inverter circuit integrates a feedback circuit and protection circuit together. For both in-phase and out-of-phase applications, sensed lamp voltages can be used for open lamp and short lamp detection and sensed currents can be used for open lamp detection. The driving circuit adjusts the open lamp frequency by using a duty cycle control signal so that the driving circuit can always achieve the desired lamp voltage gain.
摘要翻译： CCFL逆变电路将反馈电路和保护电路集成在一起。对于同相和异相应用，感测的灯电压可用于开灯和短灯检测，并且感测电流可用于开灯检测。驱动电路通过使用占空比控制信号来调节开路频率，使得驱动电路总能达到期望的灯电压增益。

4. 发明授权

US08063570B2 Simple protection circuit and adaptive frequency sweeping method for CCFL inverter 失效
标题翻译： CCFL逆变器简单保护电路和自适应扫频方法
公开(公告)号：US08063570B2
公开(公告)日：2011-11-22
申请号：US12166140
申请日：2008-07-01
申请人： Junming Zhang , Yuancheng Ren , Kaiwei Yao , Eric Yang
发明人： Junming Zhang , Yuancheng Ren , Kaiwei Yao , Eric Yang
IPC分类号： H05B37/02 , H05B41/36
CPC分类号： H05B41/2855
摘要： A CCFL inverter circuit integrates a feedback circuit and protection circuit together. For both in-phase and out-of-phase applications, sensed lamp voltages can be used for open lamp and short lamp detection and sensed currents can be used for open lamp detection. The driving circuit adjusts the open lamp frequency by using a duty cycle control signal so that the driving circuit can always achieve the desired lamp voltage gain.
摘要翻译： CCFL逆变电路将反馈电路和保护电路集成在一起。对于同相和异相应用，感测的灯电压可用于开灯和短灯检测，并且感测电流可用于开灯检测。驱动电路通过使用占空比控制信号来调节开路频率，使得驱动电路总能达到期望的灯电压增益。

5. 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。

6. 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。

7. 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。

8. 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。

9. 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。

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式