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1. 发明申请

US20100202165A1 Dynamic Drive of Switching Transistor of Switching Power Converter 有权
标题翻译：开关电源转换器开关晶体管的动态驱动
公开(公告)号：US20100202165A1
公开(公告)日：2010-08-12
申请号：US12678690
申请日：2007-09-28
申请人： Junjie Zheng , Jun Zheng , Andrew Kwok-Cheung Lee , John William Kesterson , Allan Ming-Lun Lin , Hien Huu Bui , Carrie Seim , Yong Li
发明人： Junjie Zheng , Jun Zheng , Andrew Kwok-Cheung Lee , John William Kesterson , Allan Ming-Lun Lin , Hien Huu Bui , Carrie Seim , Yong Li
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0032 , H03K17/163 , H03K17/166 , Y02B70/16
摘要： A switching power converter comprises a transformer (110), a switch (108) coupled to the transformer (110), and a switch controller (200) coupled to the switch (108) for generating a switch drive signal (207) to turn on or off the switch (108). The drive current of the switch drive signal (207) is adjusted dynamically according to line or load conditions within a switching cycle and/or over a plurality of switching cycles. The magnitude of the drive current can be dynamically adjusted within a switching cycle and/or over a plurality of switching cycles, in addition to the pulse widths or pulse frequencies of the drive current.
摘要翻译：开关电源转换器包括变压器（110），耦合到变压器（110）的开关（108）和耦合到开关（108）的开关控制器（200），用于产生开关驱动信号（207）以导通或关闭开关（108）。开关驱动信号（207）的驱动电流根据开关周期内和/或多个开关周期中的线路或负载条件动态地调整。除了驱动电流的脉冲宽度或脉冲频率之外，驱动电流的大小可以在开关周期内和/或多个开关周期内动态地调节。

2. 发明授权

US08576586B2 Dynamic drive of switching transistor of switching power converter 有权
标题翻译：开关电源转换器开关晶体管的动态驱动
公开(公告)号：US08576586B2
公开(公告)日：2013-11-05
申请号：US12678690
申请日：2007-09-28
申请人： Junjie Zheng , Jun Zheng , Andrew Kwok-Cheung Lee , John William Kesterson , Allan Ming-Lun Lin , Hien Huu Bui , Carrie Seim , Yong Li
发明人： Junjie Zheng , Jun Zheng , Andrew Kwok-Cheung Lee , John William Kesterson , Allan Ming-Lun Lin , Hien Huu Bui , Carrie Seim , Yong Li
IPC分类号： H02M3/335 , H02M3/337 , H02M3/338
CPC分类号： H02M3/33507 , H02M2001/0032 , H03K17/163 , H03K17/166 , Y02B70/16
摘要： A switching power converter comprises a transformer (110), a switch (108) coupled to the transformer (110), and a switch controller (200) coupled to the switch (108) for generating a switch drive signal (207) to turn on or off the switch (108). The drive current of the switch drive signal (207) is adjusted dynamically according to line or load conditions within a switching cycle and/or over a plurality of switching cycles. The magnitude of the drive current can be dynamically adjusted within a switching cycle and/or over a plurality of switching cycles, in addition to the pulse widths or pulse frequencies of the drive current.
摘要翻译：开关电源转换器包括变压器（110），耦合到变压器（110）的开关（108）和耦合到开关（108）的开关控制器（200），用于产生开关驱动信号（207）以导通或关闭开关（108）。开关驱动信号（207）的驱动电流根据开关周期内和/或多个开关周期中的线路或负载条件动态地调整。除了驱动电流的脉冲宽度或脉冲频率之外，驱动电流的大小可以在开关周期内和/或多个开关周期内动态地调节。

3. 发明授权

US08289732B2 Controller for switching power converter driving BJT based on primary side adaptive digital control 有权
标题翻译：基于初级侧自适应数字控制的开关电源转换器驱动BJT的控制器
公开(公告)号：US08289732B2
公开(公告)日：2012-10-16
申请号：US12639399
申请日：2009-12-16
申请人： Yong Li , Jun Zheng , Junjie Zheng , John William Kesterson
发明人： Yong Li , Jun Zheng , Junjie Zheng , John William Kesterson
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M2001/0009
摘要： A controller of an AC/DC flyback switching power supply uses adaptive digital control approaches to control the switching operation of a BJT power switch based on primary-side feedback to regulate the secondary-side constant output voltage and output current, without using the input line voltage. Switching-cycle by switching-cycle peak current control and limit are achieved based on the sensed primary-side current rather than the input line voltage in both constant-voltage and constant-current modes, operating in PWM, PFM and/or combinations of a plurality of PWM and PFM modes. The controller IC does not need a separate pin and ADC circuitry for sensing the input line voltage. The controller IC directly drives the BJT base, and dynamically adjusts the BJT base current amplitude cycle by cycle based on load change.
摘要翻译： AC / DC反激式开关电源的控制器采用自适应数字控制方式，根据初级侧反馈来控制BJT功率开关的开关动作，调节二次侧恒定输出电压和输出电流，不用输入线电压。基于感测到的初级侧电流而不是在恒定电压和恒定电流模式中的输入线电压来实现开关周期峰值电流控制和限制的开关周期，其以PWM，PFM和/或多个PWM和PFM模式。控制器IC不需要单独的引脚和ADC电路来感测输入线电压。控制器IC直接驱动BJT基座，并根据负载变化动态调整BJT基极电流幅度周期。

4. 发明申请

US20100157636A1 CONTROLLER FOR SWITCHING POWER CONVERTER DRIVING BJT BASED ON PRIMARY SIDE ADAPTIVE DIGITAL CONTROL 有权
标题翻译：基于主端自适应数字控制切换功率转换器驱动的控制器
公开(公告)号：US20100157636A1
公开(公告)日：2010-06-24
申请号：US12639399
申请日：2009-12-16
申请人： Yong Li , Jun Zheng , Junjie Zheng , John William Kesterson
发明人： Yong Li , Jun Zheng , Junjie Zheng , John William Kesterson
IPC分类号： H02M7/217
CPC分类号： H02M3/33515 , H02M2001/0009
摘要： A controller of an AC/DC flyback switching power supply uses adaptive digital control approaches to control the switching operation of a BJT power switch based on primary-side feedback to regulate the secondary-side constant output voltage and output current, without using the input line voltage. Switching-cycle by switching-cycle peak current control and limit are achieved based on the sensed primary-side current rather than the input line voltage in both constant-voltage and constant-current modes, operating in PWM, PFM and/or combinations of a plurality of PWM and PFM modes. The controller IC does not need a separate pin and ADC circuitry for sensing the input line voltage. The controller IC directly drives the BJT base, and dynamically adjusts the BJT base current amplitude cycle by cycle based on load change
摘要翻译： AC / DC反激式开关电源的控制器采用自适应数字控制方式，根据初级侧反馈来控制BJT功率开关的开关动作，调节二次侧恒定输出电压和输出电流，不用输入线电压。基于感测到的初级侧电流而不是在恒定电压和恒定电流模式中的输入线电压来实现开关周期峰值电流控制和限制的开关周期，其以PWM，PFM和/或多个PWM和PFM模式。控制器IC不需要单独的引脚和ADC电路来感测输入线电压。控制器IC直接驱动BJT基座，并根据负载变化动态调整BJT基极电流幅度周期

5. 发明授权

US08199537B2 Detecting light load conditions and improving light load efficiency in a switching power converter 有权
标题翻译：检测轻载条件并提高开关电源转换器的轻负载效率
公开(公告)号：US08199537B2
公开(公告)日：2012-06-12
申请号：US12388709
申请日：2009-02-19
申请人： Liang Yan , Xiaoyan Wang , Jun Zheng , Junjie Zheng , Clarita Poon
发明人： Liang Yan , Xiaoyan Wang , Jun Zheng , Junjie Zheng , Clarita Poon
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0032 , Y02B70/16
摘要： A switching power converter detects low load conditions based on the ratio of a first peak current value for peak current switching in constant voltage regulation mode to a second peak current value for peak current switching in constant current regulation mode. The power supply load is considered to have a low load if the ratio is lower than a predetermined threshold. Once a low load condition is detected, the switching frequency of the switching power converter is reduced to a level that minimizes switching loss in the power converter. In addition, the switching power converter also adjusts the switching frequency according to the sensed input line voltage. An offset is added to the switching period to reduce the switching frequency of the switching power converter, as the input line voltage is increased.
摘要翻译：开关电源转换器基于用于恒定电流调节模式下的峰值电流切换的恒定电压调节模式中的峰值电流切换的第一峰值电流值与用于恒定电流调节模式下的峰值电流切换的第二峰值电流值的比率来检测低负如果该比率低于预定阈值，则电源负载被认为具有低负载。一旦检测到低负载状态，则将开关功率转换器的开关频率降低到最小化功率转换器中的开关损耗的水平。此外，开关功率转换器还根据感测的输入线电压来调节开关频率。随着输入线电压的增加，偏置被加到开关周期以降低开关功率转换器的开关频率。

6. 发明申请

US20100208500A1 Detecting Light Load Conditions and Improving Light Load Efficiency in a Switching Power Converter 有权
标题翻译：检测轻负载条件并提高开关电源转换器中的轻负载效率
公开(公告)号：US20100208500A1
公开(公告)日：2010-08-19
申请号：US12388709
申请日：2009-02-19
申请人： Liang Yan , Xiaoyan Wang , Jun Zheng , Junjie Zheng , Clarita Poon
发明人： Liang Yan , Xiaoyan Wang , Jun Zheng , Junjie Zheng , Clarita Poon
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0032 , Y02B70/16
摘要： A switching power converter detects low load conditions based on the ratio of a first peak current value for peak current switching in constant voltage regulation mode to a second peak current value for peak current switching in constant current regulation mode. The power supply load is considered to have a low load if the ratio is lower than a predetermined threshold. Once a low load condition is detected, the switching frequency of the switching power converter is reduced to a level that minimizes switching loss in the power converter. In addition, the switching power converter also adjusts the switching frequency according to the sensed input line voltage. An offset is added to the switching period to reduce the switching frequency of the switching power converter, as the input line voltage is increased.
摘要翻译：开关电源转换器基于用于恒定电流调节模式下的峰值电流切换的恒定电压调节模式中的峰值电流切换的第一峰值电流值与用于恒定电流调节模式下的峰值电流切换的第二峰值电流值的比率来检测低负如果该比率低于预定阈值，则电源负载被认为具有低负载。一旦检测到低负载状态，则将开关功率转换器的开关频率降低到最小化功率转换器中的开关损耗的水平。此外，开关功率转换器还根据感测的输入线电压来调节开关频率。随着输入线电压的增加，偏置被加到开关周期以降低开关功率转换器的开关频率。

7. 发明授权

US09479280B2 Extended cavity fabry-perot laser assembly capable of high speed optical modulation with narrow mode spacing and WDM optical system including same 有权
标题翻译：具有狭窄模式间隔的高速光调制和包括其的WDM光学系统的扩展腔法布里 - 珀罗激光器组件
公开(公告)号：US09479280B2
公开(公告)日：2016-10-25
申请号：US13543259
申请日：2012-07-06
申请人： Jun Zheng , Stefan J. Murry
发明人： Jun Zheng , Stefan J. Murry
IPC分类号： H04J14/02 , H04B10/50 , H04B10/572 , H01S5/14
CPC分类号： H01S5/146 , H01S5/125 , H04B10/25 , H04B10/503 , H04B10/506 , H04B10/572 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： An extended cavity Fabry-Perot laser assembly provides relatively narrow mode spacing while allowing relatively high speed optical modulation. The extended cavity Fabry-Perot laser assembly generally includes an exit reflector physically separated from a laser emitter (e.g., a gain chip) to extend the lasing cavity and narrow the mode spacing while maintaining a relatively small gain region in the laser emitter capable of higher speed optical modulation. The extended cavity Fabry-Perot laser assembly may be used in a multi-channel transmitter in a wavelength division multiplexed (WDM) optical system that selects a channel wavelength for the transmitter from among multiple channel wavelengths emitted by the laser assembly. The narrow mode spacing may be less than a WDM channel width, and more specifically, may be less than a channel passband of an arrayed waveguide grating (AWG) or other filter used to select the channel wavelength.
摘要翻译：扩展腔法布里 - 珀罗激光器组件提供相对窄的模式间隔，同时允许相对高速的光学调制。扩展腔法布里 - 珀罗激光器组件通常包括与激光发射器（例如，增益芯片）物理分离的出射反射器，以延伸激光腔并且缩小模式间隔，同时保持激光发射器中能够较高的相对小的增益区域速度光调制。扩展腔法布里 - 珀罗激光器组件可以用在波分复用（WDM）光学系统中的多通道发射机中，该系统从由激光组件发射的多个信道波长中选择用于发射机的信道波长。窄模式间隔可以小于WDM沟道宽度，更具体地，可以小于用于选择沟道波长的阵列波导光栅（AWG）或其他滤波器的通道通带。

8. 发明授权

US09356674B2 Method and system for using non-uniform channel quantization for a feedback-based communication system 有权
标题翻译：用于基于反馈的通信系统使用非均匀信道量化的方法和系统
公开(公告)号：US09356674B2
公开(公告)日：2016-05-31
申请号：US12652150
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B17/00 , H04B7/06 , H04B7/04 , H04L1/00 , H04L25/02
CPC分类号： H04B7/0626 , H04B7/0417 , H04L1/0026 , H04L1/003 , H04L25/0202
摘要： A mobile device estimates channel state information (CSI) comprising, for example, CQI and/or SNR, for a downlink channel. The estimated CSI is non-uniformly quantized and transmitted to the base station over a finite-rate feedback channel. Different portions of the estimated CSI are quantized using different quantization step sizes, which are determined according to a performance metric function such as a channel capacity function of the estimated CSI. A quantization step size for a portion of the estimated CSI is increased if a low distribution probability is indicated by the portion of the estimated CSI. A quantization step size for a portion of the estimated CSI is decreased if a high distribution probability is indicated. The mobile device quantizes the estimated CSI using the determined quantization step sizes to transmit to the base station over the finite-rate feedback channel. Downlink data transmission is received according to the transmitted CSI.
摘要翻译：移动设备针对下行链路信道估计包括例如CQI和/或SNR的信道状态信息（CSI）。估计的CSI被不均匀地量化，并通过有限速率反馈信道发送到基站。使用不同的量化步长量化估计的CSI的不同部分，这些量化步长根据诸如估计的CSI的信道容量函数的性能度量功能来确定。如果估计的CSI的部分指示低分布概率，则估计的CSI的一部分的量化步长增加。如果指示高分配概率，则估计CSI的一部分的量化步长减小。移动设备使用确定的量化步长量化估计的CSI，以便通过有限速率反馈信道向基站发送。根据发送的CSI接收下行链路数据传输。

9. 发明授权

US09341774B2 Optically matched laser array coupling assembly for coupling laser array to arrayed waveguide grating 有权
标题翻译：光学匹配激光阵列耦合组件，用于将激光阵列耦合到阵列波导光栅
公开(公告)号：US09341774B2
公开(公告)日：2016-05-17
申请号：US13357142
申请日：2012-01-24
申请人： Jun Zheng , I-Lung Ho , Hung-Lun Chang
发明人： Jun Zheng , I-Lung Ho , Hung-Lun Chang
IPC分类号： H04B10/00 , G02B6/34 , G02B6/12 , G02B6/42
CPC分类号： G02B6/12019 , G02B6/4215
摘要： A laser array optical coupling assembly may be used to couple a laser array to an arrayed waveguide grating (AWG), for example, in an optical transmitter in a wavelength division multiplexed (WDM) optical communication system. The laser array optical coupling assembly may include an optical fiber tip array with polished optical fiber tips providing a reduced mode field diameter to improve coupling efficiency with the laser array. The laser array optical coupling assembly may also include a direct coupling of the laser array to the AWG with modified AWG inputs reducing the mode field diameter to improve coupling efficiency with the laser array. The laser array optical coupling assembly may be used, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON) or in other transmitters or transceivers in a WDM system capable of transmitting and receiving optical signals on multiple channel wavelengths.
摘要翻译：可以使用激光阵列光耦合组件将激光器阵列耦合到阵列波导光栅（AWG），例如在波分复用（WDM）光通信系统中的光发射机中。激光阵列光耦合组件可以包括具有抛光光纤尖端的光纤尖端阵列，其提供减小的模场直径以提高与激光器阵列的耦合效率。激光阵列光耦合组件还可以包括激光器阵列与AWG的直接耦合，其具有改进的AWG输入，降低模场直径以提高与激光器阵列的耦合效率。激光阵列光耦合组件可用于例如WDM无源光网络（PON）中的光线路终端（OLT）或能够在多个信道上发射和接收光信号的WDM系统中的其他发射机或收发机波长。

10. 发明授权

US09184969B2 Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：在单用户，多用户，多路访问和/或MIMO无线通信中使用的前导码
公开(公告)号：US09184969B2
公开(公告)日：2015-11-10
申请号：US13453703
申请日：2012-04-23
申请人： Ron Porat , Vinko Erceg , Jun Zheng
发明人： Ron Porat , Vinko Erceg , Jun Zheng
IPC分类号： H04L27/26 , H04L1/00 , H04L5/00 , H04L1/06 , H04B7/04 , H04B7/06
CPC分类号： H04L27/2613 , H04B7/0452 , H04B7/0669 , H04B7/0697 , H04L1/0017 , H04L1/0025 , H04L1/0041 , H04L1/007 , H04L1/0075 , H04L1/0625 , H04L5/0092 , H04L27/2626 , H04L27/2647 , H04L2001/0098
摘要： Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications. A selected preamble type is employed for use in generating a signal to be transmitted from one communication device to at least one other communication device. Depending upon a desired operational mode, as few as one preamble type, or two or more preamble types may be associated with a given operational mode. When operating in accordance with a given operational mode, a preamble type is selected from available preamble types of an operational mode. A preferred implementation may include two respective preamble types such that one preamble type is used for single user (SU) operation with transmit beamforming weights applied at the beginning of the packet or for open loop SU transmissions only, while the other preamble type, having an multiple user (MU) characteristic, is used for both SU beamforming and MU operations.
摘要翻译：在单用户，多用户，多路访问和/或MIMO无线通信中使用的前导码。选择的前导码类型被用于生成要从一个通信设备发送到至少一个其他通信设备的信号。根据期望的操作模式，可以将少至一个前同步码类型或两个或多个前导码类型与给定操作模式相关联。当根据给定的操作模式操作时，从操作模式的可用前导码类型中选择前导码类型。优选实现可以包括两个相应的前导码类型，使得一个前导码类型被用于单个用户（SU）操作，其中在分组的开始处应用的发送波束成形权重或仅用于开环SU传输，而另一个前导码类型具有多用户（MU）特性用于SU波束形成和MU操作。

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