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1. 发明授权

US08618857B2 Delay circuit and associated method 有权
标题翻译：延时电路及相关方法
公开(公告)号：US08618857B2
公开(公告)日：2013-12-31
申请号：US13431595
申请日：2012-03-27
申请人： Yan Dong , Peng Xu
发明人： Yan Dong , Peng Xu
IPC分类号： H03H11/26
CPC分类号： H03K5/133 , H02M3/1588 , H03K17/284 , Y02B70/1466
摘要： The embodiments of the present invention disclose a delay circuit. The delay circuit comprises an inverter, a load capacitor, and a first voltage clamping module, wherein the first voltage clamping module generates a voltage drop configured to prolong the propagation delay time of the delay circuit as the power supply voltage decreases. The power supply dependent delay circuit may have a much larger propagation delay time at low power supply voltage than it at high power supply voltage at the rising-edge or falling-edge of an input signal.
摘要翻译：本发明的实施例公开了延迟电路。所述延迟电路包括反相器，负载电容器和第一电压钳位模块，其中所述第一电压钳位模块产生电压降，所述电压降配置为当所述电源电压降低时延长所述延迟电路的传播延迟时间。电源相关延迟电路在低电源电压下的输入信号上升沿或下降沿的高电源电压可能具有大得多的传播延迟时间。

2. 发明授权

US08872501B2 Voltage converters with reduced output frequency variations and associated methods 有权
标题翻译：具有降低的输出频率变化和相关方法的电压转换器
公开(公告)号：US08872501B2
公开(公告)日：2014-10-28
申请号：US13051360
申请日：2011-03-18
申请人： Yan Dong , Peng Xu , James H. Nguyen
发明人： Yan Dong , Peng Xu , James H. Nguyen
IPC分类号： G05F3/04 , H02M3/156 , G05F1/00 , H02M1/00
CPC分类号： H02M3/156 , H02M2001/0022 , H02M2001/0025
摘要： A switch-mode voltage converter has a switching transistor coupled between an input voltage (Vin) and the ground and a controller coupled directly between the input voltage (Vin) and the ground. The controller periodically turns on the switching transistor for a generally constant period of time. The controller is further coupled to a DC bias voltage (Vbias) and generates a control current based on the input voltage (Vin) and the DC bias voltage (Vbias) for generating a switching signal to the switching transistor.
摘要翻译：开关模式电压转换器具有耦合在输入电压（Vin）和地之间的开关晶体管和直接耦合在输入电压（Vin）和地之间的控制器。控制器周期性地将开关晶体管接通一般恒定的时间段。控制器还耦合到DC偏置电压（Vbias），并且基于用于产生到开关晶体管的开关信号的输入电压（Vin）和DC偏置电压（Vbias）产生控制电流。

3. 发明申请

US20130257502A1 DELAY CIRCUIT AND ASSOCIATED METHOD 有权
标题翻译：延时电路及相关方法
公开(公告)号：US20130257502A1
公开(公告)日：2013-10-03
申请号：US13431595
申请日：2012-03-27
申请人： Yan Dong , Peng Xu
发明人： Yan Dong , Peng Xu
IPC分类号： H03H11/26
CPC分类号： H03K5/133 , H02M3/1588 , H03K17/284 , Y02B70/1466
摘要： The embodiments of the present invention disclose a delay circuit. The delay circuit comprises an inverter, a load capacitor, and a first voltage clamping module, wherein the first voltage clamping module generates a voltage drop configured to prolong the propagation delay time of the delay circuit as the power supply voltage decreases. The power supply dependent delay circuit may have a much larger propagation delay time at low power supply voltage than it at high power supply voltage at the rising-edge or falling-edge of an input signal.
摘要翻译：本发明的实施例公开了延迟电路。所述延迟电路包括反相器，负载电容器和第一电压钳位模块，其中所述第一电压钳位模块产生电压降，所述电压降配置为当所述电源电压降低时延长所述延迟电路的传播延迟时间。电源相关延迟电路在低电源电压下的输入信号上升沿或下降沿处的高电源电压可能具有大得多的传播延迟时间。

4. 发明授权

US08698475B2 Switching-mode power supply with ripple mode control and associated methods 有权
标题翻译：开关模式电源，具有纹波模式控制和相关方法
公开(公告)号：US08698475B2
公开(公告)日：2014-04-15
申请号：US13277991
申请日：2011-10-20
申请人： Yan Dong , Peng Xu
发明人： Yan Dong , Peng Xu
IPC分类号： G05F1/00
CPC分类号： H02M3/156
摘要： The present invention discloses a SMPS. The SMPS comprises an output port, configured to supply a load; a control signal generator, having an input and an output configured to provide a first control signal; a first switch configured to receive the first control signal and regulate the voltage at the output port; and a ramp signal generator, comprising an input and an output, wherein the input is configured to receive the control signal and the output is configured to provide a current signal simulating an output signal at the output port, and wherein the output of the ramp signal generator is further coupled to the input of the means for generating control signal.
摘要翻译：本发明公开了一种SMPS。 SMPS包括被配置为提供负载的输出端口; 控制信号发生器，具有被配置为提供第一控制信号的输入和输出; 第一开关，被配置为接收所述第一控制信号并调节所述输出端口处的电压; 以及斜坡信号发生器，其包括输入和输出，其中所述输入被配置为接收所述控制信号，并且所述输出被配置为提供模拟所述输出端口处的输出信号的电流信号，并且其中所述斜坡信号的输出发生器还耦合到用于产生控制信号的装置的输入。

5. 发明申请

US20130099761A1 Switching-Mode Power Supply with Ripple Mode Control and Associated Methods 有权
标题翻译：具有纹波模式控制和相关方法的开关电源
公开(公告)号：US20130099761A1
公开(公告)日：2013-04-25
申请号：US13277991
申请日：2011-10-20
申请人： Yan Dong , Peng Xu
发明人： Yan Dong , Peng Xu
IPC分类号： G05F1/00
CPC分类号： H02M3/156
摘要： The present invention discloses a SMPS. The SMPS comprises an output port, configured to supply a load; a control signal generator, having an input and an output configured to provide a first control signal; a first switch configured to receive the first control signal and regulate the voltage at the output port; and a ramp signal generator, comprising an input and an output, wherein the input is configured to receive the control signal and the output is configured to provide a current signal simulating an output signal at the output port, and wherein the output of the ramp signal generator is further coupled to the input of the means for generating control signal.
摘要翻译：本发明公开了一种SMPS。 SMPS包括被配置为提供负载的输出端口; 控制信号发生器，具有被配置为提供第一控制信号的输入和输出; 第一开关，被配置为接收所述第一控制信号并调节所述输出端口处的电压; 以及斜坡信号发生器，其包括输入和输出，其中所述输入被配置为接收所述控制信号，并且所述输出被配置为提供模拟所述输出端口处的输出信号的电流信号，并且其中所述斜坡信号的输出发生器还耦合到用于产生控制信号的装置的输入。

6. 发明申请

US20120235664A1 VOLTAGE CONVERTERS WITH REDUCED OUTPUT FREQUENCY VARIATIONS AND ASSOCIATED METHODS 有权
标题翻译：具有降低输出频率变化和相关方法的电压转换器
公开(公告)号：US20120235664A1
公开(公告)日：2012-09-20
申请号：US13051360
申请日：2011-03-18
申请人： Yan Dong , Peng Xu , James H. Nguyen
发明人： Yan Dong , Peng Xu , James H. Nguyen
IPC分类号： G05F3/08
CPC分类号： H02M3/156 , H02M2001/0022 , H02M2001/0025
摘要： Switch-mode voltage converters and associated methods are disclosed herein. In one embodiment, a switch-mode voltage converter includes a switching transistor coupled between an input voltage (Vin) and the ground and a controller coupled directly between the input voltage (Vin) and the ground. The controller is configured to periodically turn on the switching transistor for a generally constant period of time. The controller is further coupled to a DC bias voltage (Vbias) and configured to generate a control current based on the input voltage (Vin) and the DC bias voltage (Vbias) for generating a switching signal to the switching transistor.
摘要翻译：本文公开了开关模式电压转换器及相关方法。在一个实施例中，开关模式电压转换器包括耦合在输入电压（Vin）和地之间的开关晶体管和直接耦合在输入电压（Vin）和地之间的控制器。控制器被配置为周期性地将开关晶体管导通一般恒定的时间段。控制器进一步耦合到DC偏置电压（Vbias），并且被配置为基于用于产生到开关晶体管的开关信号的输入电压（Vin）和DC偏置电压（Vbias）产生控制电流。

7. 发明授权

US07233132B1 Current sensing in multiple coupled inductors by time constant matching to leakage inductance 有权
标题翻译：通过时间常数匹配到漏电感的多个耦合电感中的电流检测
公开(公告)号：US07233132B1
公开(公告)日：2007-06-19
申请号：US11341874
申请日：2006-01-30
申请人： Yan Dong , Ming Xu , Fred C. Lee
发明人： Yan Dong , Ming Xu , Fred C. Lee
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： Voltage regulators often have coupled output inductors because coupled output inductors provide improvements in cost and efficiency. Coupled inductors are often used in multi-phase voltage regulators. Feedback control of voltage regulators often requires accurate and responsive sensing of output current. Provided is a technique for accurately sensing the magnitude of output current in coupled inductors. An RC circuit (comprising a resistor and capacitor in series) is connected in parallel with the coupled inductor. The inductor has a leakage inductance Lk and a DC (ohmic) resistance of DCR. The resistor and capacitor are selected such that an RC time constant is equal to an L/R time constant of Lk/DCR. With the matching time constants, a sum of voltages on the capacitors is accurately proportional to a sum of currents flowing in the output inductors. Also provided is a technique for sensing current when an uncoupled center tap inductor is present.
摘要翻译：电压调节器通常具有耦合输出电感器，因为耦合的输出电感器提供了成本和效率的改进。耦合电感通常用于多相电压调节器。电压调节器的反馈控制通常需要精确和响应的输出电流感测。提供了一种用于精确地感测耦合电感器中的输出电流的大小的技术。 RC电路（包括串联的电阻器和电容器）与耦合的电感器并联连接。电感器具有DCR的漏电感Lk和DC（欧姆）电阻。选择电阻器和电容器使得RC时间常数等于Lk / DCR的L / R时间常数。使用匹配的时间常数，电容器上的电压之和与输出电感器中流过的电流之和正好成正比。还提供了当存在非耦合中心抽头电感器时感测电流的技术。

8. 外观设计

USD472960S1 Side outlet valve 失效
标题翻译：侧出气阀
公开(公告)号：USD472960S1
公开(公告)日：2003-04-08
申请号：US29148707
申请日：2001-09-27
申请人： Lawrence G. Bonczek , David Everett , Yan Dong
设计人： Lawrence G. Bonczek , David Everett , Yan Dong

9. 发明授权

US06470463B1 Method and apparatus for testing integrity of data transfer of a hardware 有权
标题翻译：用于测试硬件数据传输完整性的方法和装置
公开(公告)号：US06470463B1
公开(公告)日：2002-10-22
申请号：US09280896
申请日：1999-03-29
申请人： Hsuan-Tung Chen , Kuang-Shin Lin , Yan Dong
发明人： Hsuan-Tung Chen , Kuang-Shin Lin , Yan Dong
IPC分类号： G06F1122
CPC分类号： G06F11/26
摘要： The present invention discloses a hardware data transfer integrity testing module and a hardware data transfer integrity testing method of parallel processing through the use of a ringbuffer. An interruption service program writes data into the ring buffer. When a main application program is processing the data, the interruption service program is still working to receive data, therefore saving the time for data transferring and testing. The buffer space required for the testing is also decreased.
摘要翻译：本发明公开了一种通过使用缓冲器进行并行处理的硬件数据传输完整性测试模块和硬件数据传输完整性测试方法。中断服务程序将数据写入环形缓冲区。当主应用程序处理数据时，中断服务程序仍然可以接收数据，从而节省数据传输和测试的时间。测试所需的缓冲区也减少了。

10. 外观设计

USD929053S1 Floor cleaning machine 有权
公开(公告)号：USD929053S1
公开(公告)日：2021-08-24
申请号：US29721006
申请日：2020-01-17
申请人： Yan Dong
设计人： Yan Dong

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