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公开(公告)号：US20110150106A1
公开(公告)日：2011-06-23
申请号：US12832674
申请日：2010-07-08
CPC分类号： H04L25/4904 , H04B5/0031 , H04B5/0037 , H04B5/0093 , H04L27/2338
摘要： One embodiment of the present invention includes a decoder system that decodes a bi-phase modulated signal to generate an output code. The system includes a first filter associated with a first logic state configured to generate a first dot product of a plurality of consecutive digital samples of the bi-phase modulated signal and a respective plurality of tap weights of the first filter. The system also includes a second filter associated with a second logic state configured to generate a second dot product of the plurality of consecutive digital samples of the bi-phase modulated signal with a respective plurality of tap weights of the second filter. The system further includes a comparator configured to compare the first and second dot products and to provide the output code as a bit having one of the first logic state and the second logic state based on the comparison.
摘要翻译： 本发明的一个实施例包括对双相调制信号进行解码以产生输出码的解码器系统。 该系统包括与第一逻辑状态相关联的第一滤波器，其被配置为生成双相调制信号的多个连续数字样本的第一点积和第一滤波器的相应多个抽头权重。 该系统还包括与第二逻辑状态相关联的第二滤波器，其被配置为生成所述双相调制信号的所述多个连续数字样本的第二点积与所述第二滤波器的相应多个抽头权重。 该系统还包括比较器，其被配置为比较第一和第二点积，并且基于比较将输出代码提供为具有第一逻辑状态和第二逻辑状态之一的位。
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公开(公告)号：US07919958B2
公开(公告)日：2011-04-05
申请号：US11967767
申请日：2007-12-31
IPC分类号： G05F1/44
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： Methods and apparatus for controlling a digital power supply are disclosed. An example method includes storing a first set of coefficients for controlling a digital power supply in a memory of the digital power supply, associating the first set of coefficients with a first set of characteristics of an input voltage for the digital power supply, storing a second set of coefficients for controlling the digital power supply in the memory of the digital power supply, associating the second set of coefficients with a second set of characteristics of the input voltage, receiving a first voltage from a voltage source at the digital power supply, determining that the first voltage has the first set of characteristics, and, in response to determining that the first voltage has the first set of characteristics, applying the first set of coefficients to the digital power supply.
摘要翻译： 公开了用于控制数字电源的方法和装置。 示例性方法包括将用于控制数字电源的第一组系数存储在数字电源的存储器中，将第一组系数与数字电源的输入电压的第一组特性相关联，存储第二组 用于控制数字电源的存储器中的数字电源的系数集合，将第二组系数与输入电压的第二组特性相关联，从数字电源的电压源接收第一电压，确定 第一电压具有第一组特性，并且响应于确定第一电压具有第一组特性，将第一组系数应用于数字电源。
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公开(公告)号：US07787263B2
公开(公告)日：2010-08-31
申请号：US11967781
申请日：2007-12-31
IPC分类号： H02M3/335
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： Methods and apparatus to control a digital power supply are disclosed. An example method includes controlling a power factor controller by: receiving a first current signal flowing in a first stage of the power factor controller, receiving a second current signal flowing in a second stage of the power factor controller, determining a difference between the first current signal and the second current signal, determining if the magnitude of a measured current signal is above a predetermined threshold, activating an integrator to integrate the difference when the magnitude of the measured current signal is above a predetermined threshold, and outputting a first control signal and a second control signal to the power factor controller based on the output of the integrator.
摘要翻译： 公开了用于控制数字电源的方法和装置。 示例性方法包括：通过以下操作来控制功率因数控制器：接收在功率因数控制器的第一级中流动的第一电流信号，接收在功率因数控制器的第二级中流动的第二电流信号，确定第一电流 信号和第二电流信号，确定测量的电流信号的大小是否高于预定阈值，当所测量的电流信号的幅度高于预定阈值时激活积分器以积分差分，并输出第一控制信号和 基于积分器的输出到功率因数控制器的第二控制信号。
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公开(公告)号：US07688608B2
公开(公告)日：2010-03-30
申请号：US11967793
申请日：2007-12-31
IPC分类号： H02M7/5387 , H02M3/24
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： An example disclosed method to handle a reference voltage change in a digital power supply includes receiving a first value associated with a first reference voltage having a first voltage magnitude at a digital signal processor of a digital power supply, comparing the first reference voltage to an output voltage of the digital power supply, controlling the digital power supply based on the comparison between the first reference voltage and the output voltage, receiving a second value associated with a second reference voltage having a second voltage magnitude, determining that the first voltage magnitude is different than the second voltage magnitude, in response to determining that the second voltage magnitude is different than the first voltage magnitude, determining a voltage profile, and controlling the digital power supply based on the voltage profile.
摘要翻译： 用于处理数字电源中的参考电压变化的示例公开的方法包括：在数字电源的数字信号处理器处接收与具有第一电压幅度的第一参考电压相关联的第一值，将第一参考电压与输出 数字电源的电压，基于第一参考电压和输出电压之间的比较来控制数字电源，接收与具有第二电压幅度的第二参考电压相关联的第二值，确定第一电压幅度不同 响应于确定所述第二电压幅度不同于所述第一电压幅度，确定电压分布，以及基于所述电压分布来控制所述数字电源。
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公开(公告)号：US20080284399A1
公开(公告)日：2008-11-20
申请号：US11967767
申请日：2007-12-31
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： Methods and apparatus for controlling a digital power supply are disclosed. An example method includes storing a first set of coefficients for controlling a digital power supply in a memory of the digital power supply, associating the first set of coefficients with a first set of characteristics of an input voltage for the digital power supply, storing a second set of coefficients for controlling the digital power supply in the memory of the digital power supply, associating the second set of coefficients with a second set of characteristics of the input voltage, receiving a first voltage from a voltage source at the digital power supply, determining that the first voltage has the first set of characteristics, and, in response to determining that the first voltage has the first set of characteristics, applying the first set of coefficients to the digital power supply.
摘要翻译： 公开了用于控制数字电源的方法和装置。 示例性方法包括将用于控制数字电源的第一组系数存储在数字电源的存储器中，将第一组系数与数字电源的输入电压的第一组特性相关联，存储第二组 用于控制数字电源的存储器中的数字电源的系数集合，将第二组系数与输入电压的第二组特性相关联，从数字电源的电压源接收第一电压，确定 第一电压具有第一组特性，并且响应于确定第一电压具有第一组特性，将第一组系数应用于数字电源。
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公开(公告)号：US07903439B2
公开(公告)日：2011-03-08
申请号：US11967798
申请日：2007-12-31
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： Methods and apparatus to control a digital power supply are disclosed. An example method includes calculating a duty cycle of a pulse width modulated signal to control an output of a digital power supply, initializing an output of a counter that forms a pulse width modulator to increment by a first increment up to a counter maximum value for a first period and to decrement by the first increment for a second period, dividing the duty cycle by a constant to determine a multiple of the duty cycle to apply to each power stage of the power supply, calculating a first threshold percent by subtracting the multiple of the duty cycle from one hundred percent, setting a first threshold to be the first threshold percent multiplied by the counter maximum value, and controlling the power factor controller based on the first threshold.
摘要翻译： 公开了用于控制数字电源的方法和装置。 一个示例性方法包括计算脉宽调制信号的占空比以控制数字电源的输出，初始化形成脉宽调制器的计数器的输出，以递增第一增量直到一个最大值 第一周期，并且在第二周期中递减第一增量，将占空比除以常数以确定要施加到电源的每个功率级的占空比的倍数，通过减去第一阈值的倍数 占空比从百分之一百，将第一阈值设置为第一阈值乘以计数器最大值，以及基于第一阈值来控制功率因数控制器。
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17.发明申请公开(公告)号：US20080288201A1
公开(公告)日：2008-11-20
申请号：US11967776
申请日：2007-12-31
IPC分类号： G01D3/00
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： Methods and apparatus to measure a transfer function of a control system are disclosed. An example method includes receiving a first signal from the power supply at a first point in the control loop at a digital signal processor, instructing the digital signal processor to add a reference signal having a predetermined frequency and a predetermined amplitude to the first signal to generate a combined signal in the digital signal processor, using the combined signal to generate a control signal for the power stage, sampling the control signal at a second point around the control loop in the digital signal processor to generate a sampled signal, comparing the sampled signal to the reference signal to determine a transfer function of the digital power supply, and displaying the transfer function on a user interface.
摘要翻译： 公开了测量控制系统的传递函数的方法和装置。 示例性方法包括在数字信号处理器处在控制回路中的第一点处从电源接收第一信号，指示数字信号处理器将具有预定频率和预定幅度的参考信号添加到第一信号以产生 数字信号处理器中的组合信号，使用组合信号产生用于功率级的控制信号，在数字信号处理器中的控制环周围的第二点采样控制信号，以产生采样信号， 到参考信号以确定数字电源的传递函数，并在用户界面上显示传递函数。
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公开(公告)号：US20080285313A1
公开(公告)日：2008-11-20
申请号：US11967781
申请日：2007-12-31
IPC分类号： H02M3/337
CPC分类号： H02M3/157 , H02M2001/0012 , H02M2001/0025 , H02M2001/007 , H02M2003/1586
摘要： Methods and apparatus to control a digital power supply are disclosed. An example method includes controlling a power factor controller by: receiving a first current signal flowing in a first stage of the power factor controller, receiving a second current signal flowing in a second stage of the power factor controller, determining a difference between the first current signal and the second current signal, determining if the magnitude of a measured current signal is above a predetermined threshold, activating an integrator to integrate the difference when the magnitude of the measured current signal is above a predetermined threshold, and outputting a first control signal and a second control signal to the power factor controller based on the output of the integrator.
摘要翻译： 公开了用于控制数字电源的方法和装置。 示例性方法包括：通过以下操作来控制功率因数控制器：接收在功率因数控制器的第一级中流动的第一电流信号，接收在功率因数控制器的第二级中流动的第二电流信号，确定第一电流 信号和第二电流信号，确定测量的电流信号的大小是否高于预定阈值，当所测量的电流信号的幅度高于预定阈值时激活积分器以积分差分，并输出第一控制信号和 基于积分器的输出到功率因数控制器的第二控制信号。
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19.发明申请Systems and Methods of Detecting a Change in Object Presence in a Magnetic Field 有权检测磁场中物体存在变化的系统和方法公开(公告)号：US20120256620A1
公开(公告)日：2012-10-11
申请号：US13084510
申请日：2011-04-11
IPC分类号： G01R33/12
CPC分类号： H02J50/90 , G01R33/0041 , G01R33/028 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/10 , H02J50/12 , H04B5/0037 , H04B5/0081
摘要： The systems and methods of detecting a change in object presence in a magnetic field disclosed herein inject a low amplitude signal near the resonant frequency into the coil until the system comes to equilibrium. At this point the feedback is measured. The feedback signal can be measured as at least one of several signals, for example, but not limited to the voltage on the resonant capacitor, the current in the coil, and the voltage between the resonant capacitor and the coil. A change in the steady state response indicates a change in device presence.
摘要翻译： 检测本文公开的磁场中物体存在的变化的系统和方法将共振频率附近的低振幅信号注入到线圈中，直到系统达到平衡。 此时测量反馈。 反馈信号可以被测量为几个信号中的至少一个，例如但不限于谐振电容器上的电压，线圈中的电流以及谐振电容器和线圈之间的电压。 稳态响应的变化表明设备存在的变化。
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公开(公告)号：US09014305B2
公开(公告)日：2015-04-21
申请号：US13337674
申请日：2011-12-27
摘要： One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.
摘要翻译： 本发明的一个方面包括双相通信接收机系统。 该系统包括被配置为对双相调制信号进行采样以生成双相调制信号的数字采样的模数转换器（ADC）。 该系统还包括双相信号解码器，其被配置为基于数字样本对双相调制信号进行解码。 该系统还包括前导码检测器，其包括数字滤波器，该数字滤波器被配置为评估数字采样以产生输出并且检测用于基于输出对双相调制信号进行解码的双相调制信号的前导码。
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