专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08576588B2 Switching mode power supply with primary side control 有权
标题翻译：开关电源具有初级侧控制
公开(公告)号：US08576588B2
公开(公告)日：2013-11-05
申请号：US13016592
申请日：2011-01-28
申请人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
发明人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
IPC分类号： H02M3/335
CPC分类号： H05B33/0815
摘要： The present technology are directed to switching mode power supplies with primary side control. In one embodiment, the switching mode power supply provides an equivalent current signal which represents a load current. The equivalent current signal is then used to control a switching circuit in the switching mode power supply.
摘要翻译：本技术涉及具有初级侧控制的开关电源。在一个实施例中，开关模式电源提供表示负载电流的等效电流信号。然后，等效电流信号用于控制开关电源中的开关电路。

22. 发明申请

US20120112795A1 Peak Current Control Circuit for Switching Mode Power Supply and Method Thereof 有权
标题翻译：用于开关电源的峰值电流控制电路及其方法
公开(公告)号：US20120112795A1
公开(公告)日：2012-05-10
申请号：US13288536
申请日：2011-11-03
申请人： Siran Wang , Yuancheng Ren , Junming Zhang , En Li
发明人： Siran Wang , Yuancheng Ren , Junming Zhang , En Li
IPC分类号： H03K5/22
CPC分类号： H02M3/33507 , H02M2001/0025
摘要： A switching mode power supply with improved peak current control is disclosed. A varying reference signal is adopted to limit the peak current in the energy storage component. The varying reference signal is an exponential function of a time period when a power switch is ON, wherein the power switch is coupled to the energy storage component. The varying reference signal may be generated by a circuit comprising a RC circuit and one or several voltage sources.
摘要翻译：公开了具有改进的峰值电流控制的开关模式电源。采用变化的参考信号来限制能量存储部件中的峰值电流。变化的参考信号是电源开关导通的时间段的指数函数，其中功率开关耦合到能量存储部件。变化的参考信号可以由包括RC电路和一个或多个电压源的电路产生。

23. 发明授权

US08159141B2 Methods and apparatus for driving discharge lamps 失效
标题翻译：用于驱动放电灯的方法和装置
公开(公告)号：US08159141B2
公开(公告)日：2012-04-17
申请号：US12510089
申请日：2009-07-27
申请人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
发明人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
IPC分类号： H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B41/2827 , H05B41/3925
摘要： Methods and apparatus for driving discharge lamps are disclosed herein. In one embodiment, a method for driving a discharge lamp includes generating a switching signal to drive a discharge lamp, monitoring a working status of the discharge lamp, and determining whether the discharge lamp is operating abnormally based at least in part on the monitored working status. The method also includes decreasing a duty cycle of the switching signal when the discharge lamp is determined to operate abnormally.
摘要翻译：本文公开了用于驱动放电灯的方法和装置。在一个实施例中，用于驱动放电灯的方法包括产生切换信号以驱动放电灯，监视放电灯的工作状态，以及至少部分地基于所监视的工作状态来确定放电灯是否异常运行。该方法还包括当放电灯被确定为异常运行时，减小开关信号的占空比。

24. 发明申请

US20100302815A1 SWITCHING MODE POWER SUPPLY WITH A MULTI-MODE CONTROLLER 有权
标题翻译：用多模式控制器切换模式电源
公开(公告)号：US20100302815A1
公开(公告)日：2010-12-02
申请号：US12720396
申请日：2010-03-09
申请人： En Li , Junming Zhang , Yuancheng Ren
发明人： En Li , Junming Zhang , Yuancheng Ren
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A switching mode power supply with a multi-mode controller is provided. The switching mode power supply may include a transformer having a primary winding and a secondary winding to supply power to a load. A feedback circuit may be included to generate a feedback signal that varies in relation to the load on the secondary winding. The multi-mode controller may include a switching circuit, a frequency control circuit and a current limiting circuit. The switching circuit may be coupled to the primary winding to control current flow through the primary winding. The frequency control circuit may control a switching frequency of the switching circuit based on the feedback signal. The current limiting circuit may limit current flow through the primary winding by causing the switching circuit to suspend current flow through the primary winding when the current reaches a peak current limit that is set based on the feedback signal.
摘要翻译：提供了具有多模式控制器的开关模式电源。开关模式电源可以包括具有初级绕组和次级绕组以向负载供电的变压器。可以包括反馈电路以产生相对于次级绕组上的负载而变化的反馈信号。多模式控制器可以包括开关电路，频率控制电路和限流电路。开关电路可以耦合到初级绕组以控制通过初级绕组的电流。频率控制电路可以基于反馈信号来控制开关电路的开关频率。当电流达到基于反馈信号设定的峰值电流限制时，限流电路可以通过使开关电路暂停通过初级绕组的电流来限制通过初级绕组的电流。

25. 发明申请

US20100072906A1 METHODS AND APPARATUS FOR DRIVING DISCHARGE LAMPS 失效
标题翻译：驱动放电灯的方法和装置
公开(公告)号：US20100072906A1
公开(公告)日：2010-03-25
申请号：US12510089
申请日：2009-07-27
申请人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
发明人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
IPC分类号： H05B37/02
CPC分类号： H05B41/2827 , H05B41/3925
摘要： Methods and apparatus for driving discharge lamps are disclosed herein. In one embodiment, a method for driving a discharge lamp includes generating a switching signal to drive a discharge lamp, monitoring a working status of the discharge lamp, and determining whether the discharge lamp is operating abnormally based at least in part on the monitored working status. The method also includes decreasing a duty cycle of the switching signal when the discharge lamp is determined to operate abnormally.
摘要翻译：本文公开了用于驱动放电灯的方法和装置。在一个实施例中，用于驱动放电灯的方法包括产生切换信号以驱动放电灯，监视放电灯的工作状态，以及至少部分地基于所监视的工作状态来确定放电灯是否异常运行。该方法还包括当放电灯被确定为异常运行时，减小开关信号的占空比。

26. 发明授权

US09035566B2 Light emitting diode driver systems and associated methods of control 有权
标题翻译：发光二极管驱动器系统及相关方法的控制
公开(公告)号：US09035566B2
公开(公告)日：2015-05-19
申请号：US13048699
申请日：2011-03-15
申请人： Lei Du , Bairen Liu , Kaiwei Yao , Junming Zhang , Yuancheng Ren
发明人： Lei Du , Bairen Liu , Kaiwei Yao , Junming Zhang , Yuancheng Ren
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0818 , H05B33/0848
摘要： Light emitting diode (LED) dimming and driver systems and associated methods of control are disclosed herein. In one embodiment, a system comprises a PFC stage and an LED driver stage. The LED driver stage comprises an isolated converter and a controller responsive to a dimming signal to dim LED strings for backlight. The controller also regulates an output current of the isolated converter.
摘要翻译：本文公开了发光二极管（LED）调光和驱动器系统及相关的控制方法。在一个实施例中，系统包括PFC级和LED驱动级。 LED驱动器级包括隔离转换器和响应于调光信号的控制器以使用于背光的LED灯串变暗。控制器还调节隔离转换器的输出电流。

27. 发明授权

US08749997B2 Peak current control circuit for switching mode power supply and method thereof 有权
标题翻译：用于开关电源的峰值电流控制电路及其方法
公开(公告)号：US08749997B2
公开(公告)日：2014-06-10
申请号：US13288536
申请日：2011-11-03
申请人： Siran Wang , Yuancheng Ren , Junming Zhang , En Li
发明人： Siran Wang , Yuancheng Ren , Junming Zhang , En Li
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0025
摘要： A switching mode power supply with improved peak current control is disclosed. A varying reference signal is adopted to limit the peak current in the energy storage component. The varying reference signal is an exponential function of a time period when a power switch is ON, wherein the power switch is coupled to the energy storage component. The varying reference signal may be generated by a circuit comprising a RC circuit and one or several voltage sources.
摘要翻译：公开了具有改进的峰值电流控制的开关模式电源。采用变化的参考信号来限制能量存储部件中的峰值电流。变化的参考信号是电源开关导通的时间段的指数函数，其中功率开关耦合到能量存储部件。变化的参考信号可以由包括RC电路和一个或多个电压源的电路产生。

28. 发明授权

US08593841B2 Compensation circuit for constant current regulation of power supply and method thereof 有权
标题翻译：电源恒流调节补偿电路及其方法
公开(公告)号：US08593841B2
公开(公告)日：2013-11-26
申请号：US13289274
申请日：2011-11-04
申请人： Siran Wang , Yuancheng Ren , Junming Zhang , En Li
发明人： Siran Wang , Yuancheng Ren , Junming Zhang , En Li
IPC分类号： H02J3/12 , G05F1/00 , H02M3/335
CPC分类号： H02M3/335
摘要： A compensation circuit and method for constant current regulation of switching mode power supply are disclosed. The ringing waveform of a feedback signal, indicative of the output current of the power supply, causes error. To eliminate the error, a current source charges a capacitor in response to a demagnetizing oscillation signal indicative of the error caused by the ringing waveform of the feedback signal. The voltage across the capacitor is compared to a reference signal to generate a more accurate signal indicative of the conductive time of a secondary diode in a secondary winding of the switching mode power supply. This more accurate signal is inputted to a logic circuit to generate a constant current control signal to control a power switch of the power supply.
摘要翻译：公开了一种用于开关电源的恒流调节的补偿电路和方法。指示电源的输出电流的反馈信号的振铃波形引起误差。为了消除误差，电流源响应于指示由反馈信号的振铃波形引起的误差的去磁振荡信号对电容器充电。将电容器两端的电压与参考信号进行比较，以产生指示开关模式电源的次级绕组中次级二极管的导通时间的更准确的信号。该更准确的信号被输入到逻辑电路以产生恒定电流控制信号以控制电源的电源开关。

29. 发明授权

US08581518B2 Triac dimmer compatible switching mode power supply and method thereof 有权
标题翻译：三端双向可控硅调光器兼容开关电源及其方法
公开(公告)号：US08581518B2
公开(公告)日：2013-11-12
申请号：US13110719
申请日：2011-05-18
申请人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
发明人： Naixing Kuang , Lei Du , Junming Zhang , Yuancheng Ren
IPC分类号： H05B37/02
CPC分类号： H05B33/0809 , H05B33/0845
摘要： Triac dimmer compatible switching mode power supplies used as LED drivers are disclosed herein. A PFC controller is configured in the switching mode power supplies. With the PFC controller, the current keeping the triac in the on-state is supplied by the DC/DC converter, and the LC resonance is reduced.
摘要翻译：本文公开了用作LED驱动器的Triac调光器兼容的开关模式电源。在开关模式电源中配置了PFC控制器。使用PFC控制器，保持三端双向可控硅开关电流的电流由DC / DC转换器提供，LC谐振减小。

30. 发明授权

US08498135B2 Switching mode power supply with spectrum shaping and the method thereof 有权
标题翻译：具有频谱整形的开关电源及其方法
公开(公告)号：US08498135B2
公开(公告)日：2013-07-30
申请号：US12944568
申请日：2010-11-11
申请人： En Li , Junming Zhang , Yuancheng Ren
发明人： En Li , Junming Zhang , Yuancheng Ren
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/44 , H02M3/33523
摘要： Embodiments of circuits and methods for a switching mode power supply are described in detail herein. In one embodiment, a switching mode power supply includes a transformer having a primary winding and a secondary winding to supply power to a load, a feedback circuit that generates a feedback signal that varies in relation to the load on the secondary winding, a switching circuit coupled to the primary winding to control current flow through the primary winding, and a control circuit coupled to the switching circuit to control the on/off status of switching circuit in response to the feedback signal and the current flow through the primary winding. The control circuit comprises a spectrum shaping circuit configured to generate a spectrum shaping signal in response to the feedback signal. The spectrum shaping signal can then be used to regulate the switching frequency and the spectrum shaping range.
摘要翻译：本文详细描述了开关模式电源的电路和方法的实施例。在一个实施例中，开关模式电源包括具有初级绕组和次级绕组以向负载供电的变压器，产生相对于次级绕组上的负载变化的反馈信号的反馈电路，开关电路耦合到初级绕组以控制通过初级绕组的电流;以及控制电路，其耦合到开关电路，以响应于反馈信号和通过初级绕组的电流来控制开关电路的接通/断开状态。该控制电路包括频谱整形电路，该频谱整形电路被配置为响应于反馈信号产生频谱整形信号。频谱整形信号可用于调节开关频率和频谱整形范围。

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