公开(公告)号：US20120274227A1

公开(公告)日：2012-11-01

申请号：US13495918

申请日：2012-06-13

申请人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

发明人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  Y02B20/347

摘要： An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.

摘要翻译： 提供了一种LED灯，其中LED灯的LED的输出光强度基于对LED灯的输入电压进行调节。 调光器控制单元在配置过程中检测调光器开关的类型。 使用检测到的调光器类型，调光器控制单元产生适合于检测到的调光器类型的控制信号，以向LED提供调节电流并实现期望的调光效果。 LED灯可以直接替代传统的白炽灯，它们在使用常规调光开关的住宅和商业建筑照明应用中发现的典型接线配置中。

公开(公告)号：US20110012530A1

公开(公告)日：2011-01-20

申请号：US12503063

申请日：2009-07-14

申请人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

发明人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  Y02B20/347

摘要： An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.

摘要翻译： 提供了一种LED灯，其中LED灯的LED的输出光强度基于对LED灯的输入电压进行调节。 调光器控制单元在配置过程中检测调光器开关的类型。 使用检测到的调光器类型，调光器控制单元产生适合于检测到的调光器类型的控制信号，以向LED提供调节电流并实现期望的调光效果。 LED灯可以直接替代传统的白炽灯，它们在使用常规调光开关的住宅和商业建筑照明应用中发现的典型接线配置中。

公开(公告)号：US08643303B2

公开(公告)日：2014-02-04

申请号：US13495918

申请日：2012-06-13

申请人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

发明人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  Y02B20/347

摘要： An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.

摘要翻译： 提供了一种LED灯，其中LED灯的LED的输出光强度基于对LED灯的输入电压进行调节。 调光器控制单元在配置过程中检测调光器开关的类型。 使用检测到的调光器类型，调光器控制单元产生适合于检测到的调光器类型的控制信号，以向LED提供调节电流并实现期望的调光效果。 LED灯可以直接替代传统的白炽灯，它们在使用常规调光开关的住宅和商业建筑照明应用中发现的典型接线配置中。

公开(公告)号：US08222832B2

公开(公告)日：2012-07-17

申请号：US12503063

申请日：2009-07-14

申请人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

发明人： Junjie Zheng ,  John W. Kesterson ,  Richard M. Myers ,  Baorong Chen ,  Gordon Chen

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  Y02B20/347

摘要： An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.

摘要翻译： 提供了一种LED灯，其中LED灯的LED的输出光强度基于对LED灯的输入电压进行调节。 调光器控制单元在配置过程中检测调光器开关的类型。 使用检测到的调光器类型，调光器控制单元产生适合于检测到的调光器类型的控制信号，以向LED提供调节电流并实现期望的调光效果。 LED灯可以直接替代传统的白炽灯，它们在使用常规调光开关的住宅和商业建筑照明应用中发现的典型接线配置中。

公开(公告)号：US08049481B2

公开(公告)日：2011-11-01

申请号：US12608854

申请日：2009-10-29

申请人： Yong Li ,  Carrie Seim ,  Junjie Zheng ,  John W. Kesterson ,  Liang Yan ,  Clarita Poon ,  Fuqiang Shi

发明人： Yong Li ,  Carrie Seim ,  Junjie Zheng ,  John W. Kesterson ,  Liang Yan ,  Clarita Poon ,  Fuqiang Shi

IPC分类号： G05F1/575 ,  H02M3/335

CPC分类号： H02M3/157 ,  H02M2001/0032 ,  Y02B70/16

摘要： Adaptive multi-mode digital control schemes that improve the light-load efficiency (and thus the overall average efficiency) in switch-mode power converters without causing performance issues such as audible noises or excessive voltage ripples. Embodiments include a switch-mode power converter that reduces current in the power converter using a second pulse-width-modulation (PWM) mode before reaching switching frequencies that generate audible noises. As the load across the output of the power converter is reduced, the power converter transitions from a first PWM mode in high load conditions to a first pulse-frequency-modulation (PFM) mode, then to a second PWM mode, and finally to a second PFM mode. During the second PFM mode, the switching frequency is dropped to audible frequency levels. Current in the power converter, however, is reduced in the second PWM mode before transitioning to the second PFM mode. Therefore, the power converter produces less or no audible noise in light load conditions where the switching frequency drops to audible frequency levels, while achieving high efficiency across varying load conditions.

摘要翻译： 自适应多模数字控制方案，可以提高开关模式电源转换器的轻负载效率（从而提高整体平均效率），而不会引起诸如声音噪声或电压波动过大等性能问题。 实施例包括开关模式功率转换器，其在达到产生可听见噪声的开关频率之前，使用第二脉冲宽度调制（PWM）模式减小功率转换器中的电流。 随着功率转换器输出端的负载减小，功率转换器从高负载条件下的第一个PWM模式转换到第一个脉冲频率调制（PFM）模式，然后转换到第二个PWM模式，最后到 第二PFM模式。 在第二个PFM模式下，开关频率下降到可听频率水平。 然而，在转换到第二PFM模式之前，功率转换器中的电流在第二PWM模式中减小。 因此，功率转换器在轻负载条件下产生较少或没有可听见的噪声，其中开关频率下降到可听频率水平，同时在不同的负载条件下实现高效率。

公开(公告)号：US20100164455A1

公开(公告)日：2010-07-01

申请号：US12608854

申请日：2009-10-29

申请人： Yong Li ,  Carrie Seim ,  Junjie Zheng ,  John W. Kesterson ,  Liang Yan ,  Clarita Poon ,  Fuqiang Shi

发明人： Yong Li ,  Carrie Seim ,  Junjie Zheng ,  John W. Kesterson ,  Liang Yan ,  Clarita Poon ,  Fuqiang Shi

IPC分类号： G05F1/10

CPC分类号： H02M3/157 ,  H02M2001/0032 ,  Y02B70/16

摘要： Adaptive multi-mode digital control schemes that improve the light-load efficiency (and thus the overall average efficiency) in switch-mode power converters without causing performance issues such as audible noises or excessive voltage ripples. Embodiments include a switch-mode power converter that reduces current in the power converter using a second pulse-width-modulation (PWM) mode before reaching switching frequencies that generate audible noises. As the load across the output of the power converter is reduced, the power converter transitions from a first PWM mode in high load conditions to a first pulse-frequency-modulation (PFM) mode, then to a second PWM mode, and finally to a second PFM mode. During the second PFM mode, the switching frequency is dropped to audible frequency levels. Current in the power converter, however, is reduced in the second PWM mode before transitioning to the second PFM mode. Therefore, the power converter produces less or no audible noise in light load conditions where the switching frequency drops to audible frequency levels, while achieving high efficiency across varying load conditions.

摘要翻译： 自适应多模数字控制方案，可以提高开关模式电源转换器的轻负载效率（从而提高整体平均效率），而不会引起诸如声音噪声或电压波动过大等性能问题。 实施例包括开关模式功率转换器，其在达到产生可听见噪声的开关频率之前，使用第二脉冲宽度调制（PWM）模式减小功率转换器中的电流。 随着功率转换器输出端的负载减小，功率转换器从高负载条件下的第一个PWM模式转换到第一个脉冲频率调制（PFM）模式，然后转换到第二个PWM模式，最后到 第二PFM模式。 在第二个PFM模式下，开关频率下降到可听频率水平。 然而，在转换到第二PFM模式之前，功率转换器中的电流在第二PWM模式中减小。 因此，功率转换器在轻负载条件下产生较少或没有可听见的噪声，其中开关频率下降到可听频率水平，同时在不同的负载条件下实现高效率。

公开(公告)号：US07511973B2

公开(公告)日：2009-03-31

申请号：US11856582

申请日：2007-09-17

申请人： John W. Kesterson ,  Junjie Zheng

发明人： John W. Kesterson ,  Junjie Zheng

IPC分类号： H02M3/335

CPC分类号： H02M3/33507

摘要： A modification of a control loop of a primary side sensing power control system that uses a different and unique relationship to accomplish the constant current control while attenuating the affects of a ripple voltage.

摘要翻译： 初级侧感测功率控制系统的控制回路的修改，其使用不同且独特的关系来实现恒定电流控制，同时衰减纹波电压的影响。

公开(公告)号：US4499469A

公开(公告)日：1985-02-12

申请号：US422517

申请日：1982-09-23

申请人： John W. Kesterson

发明人： John W. Kesterson

IPC分类号： G01S7/40 ,  G01S13/94 ,  G01S9/02

CPC分类号： G01S13/94 ,  G01S7/4052 ,  G01S2007/4082

摘要： A radar system testing apparatus for use in evaluating radar performance of terrain following, forward looking radars, generally installed in the nose of military aircraft. The operator inputs the antenna position and rotational arc limits desired which are converted into reference voltages and compared to the antenna's true position by a logic comparator network. When the true position is within the operator's selected window, and the radar system inputs a trigger signal to indicate transmitter firing, the logic network will respond with a spiked waveform. This waveform traverses two consecutive one shot multivibrators with appropriate controls to vary the width of the resultant output pulses. By controlling the size of the pulses, the operator effectively selects a variety of target ranges and target widths for testing purposes. These controlled pulses are fed back into the radar system where they generate a simulated target return for evaluating the performance of the radar system under known conditions.

摘要翻译： 一种雷达系统测试装置，用于评估地形跟踪雷达性能，前瞻性雷达，一般安装在军用飞机的鼻子上。 操作员输入所需的天线位置和旋转极限值，并将其转换为参考电压，并通过逻辑比较器网络与天线的真实位置进行比较。 当真实位置在操作员选择的窗口内，并且雷达系统输入触发信号以指示发射器触发时，逻辑网络将以加标波形进行响应。 该波形通过适当的控制遍历两个连续的单次多谐振荡器，以改变所得输出脉冲的宽度。 通过控制脉冲的大小，操作者有效地选择各种目标范围和目标宽度进行测试。 这些受控脉冲被反馈到雷达系统中，在那里它们产生模拟目标返回值，用于在已知条件下评估雷达系统的性能。

公开(公告)号：US08184762B2

公开(公告)日：2012-05-22

申请号：US12266383

申请日：2008-11-06

申请人： John W. Kesterson ,  Carrie Seim ,  Selcuk Sen ,  Xuecheng Jin

发明人： John W. Kesterson ,  Carrie Seim ,  Selcuk Sen ,  Xuecheng Jin

IPC分类号： H03D3/24 ,  H03L7/00 ,  H03L7/06

CPC分类号： H03L7/07 ,  H03L7/081 ,  H03L7/085 ,  H03L7/0994 ,  H03L2207/50

摘要： A digital phase lock loop circuit provides an output with reduced jitter. The digital phase lock loop circuit includes a phase frequency detector that determines a phase difference between a feedback signal and a reference frequency signal to generate an error signal indicative of the phase difference. A numerically controlled oscillator generates a first oscillator output signal with a frequency proportional to the error signal and a second oscillator output signal indicative of jitter of the first oscillator output signal in reference to the reference frequency signal. A phase accuracy extender determines a delay amount from the second oscillator output signal and delays the first oscillator output signal by the delay amount to generate a phase-enhanced output signal with edges aligned with one of a plurality of reference clock signals.

摘要翻译： 数字锁相环电路提供具有减少的抖动的输出。 数字锁相环电路包括相位频率检测器，其确定反馈信号和参考频率信号之间的相位差，以产生指示相位差的误差信号。 数控振荡器产生与误差信号成比例的频率的第一振荡器输出信号和指示参考频率信号的第一振荡器输出信号的抖动的第二振荡器输出信号。 相位精度延长器确定来自第二振荡器输出信号的延迟量，并将第一振荡器输出信号延迟延迟量，以产生具有与多个参考时钟信号之一对准的相位增强输出信号。

公开(公告)号：US20080278132A1

公开(公告)日：2008-11-13

申请号：US11745300

申请日：2007-05-07

申请人： John W. Kesterson ,  Mark R. Muegge ,  Mark D. Eason

发明人： John W. Kesterson ,  Mark R. Muegge ,  Mark D. Eason

IPC分类号： G05F5/00 ,  H02M3/156

CPC分类号： H02M3/33515 ,  H02M2001/0025

摘要： The present invention is a system and a method that uses primary side sensing to regulate the output voltage at a cable end without any remote sensing of cable connections back from the load. This is accomplished by approximating the current from the control voltage in the control loop through the relationship that defines the Ton time in terms of the control voltage Vc. Once the approximation of the output current is known, it is multiplied by a known fixed cable resistance, and this value is subtracted from the feedback sensor output before it is subtracted from the digital reference. This forces the regulator to raise the output voltage by the amount of drop across the cable, causing the output of the cable to be maintained at the targeted regulation point.

摘要翻译： 本发明是一种系统和方法，其使用初级侧感测来调节电缆端的输出电压，而不需要从负载远离电缆连接。 这是通过根据控制电压Vc定义Ton时间的关系来近似来自控制回路中的控制电压的电流来实现的。 一旦知道输出电流的近似值，就将其乘以一个已知的固定电缆电阻，并在从数字参考值中减去该值之前从反馈传感器输出中减去该值。 这迫使调节器将输出电压提高到电缆上的下降量，导致电缆的输出保持在目标调节点。