-
公开(公告)号：US20070195876A1
公开(公告)日：2007-08-23
申请号：US11359045
申请日：2006-02-22
申请人： Aleksandar Prodic
发明人： Aleksandar Prodic
CPC分类号： H03K7/08 , H03K5/135 , H03K2005/00084
摘要： A hybrid digital pulse width modulator can have a delay line with digitally programmable delay cells. The digitally programmable delay cells can be adjusted by a digital correction signal from a delay matching circuit.
摘要翻译： 混合数字脉宽调制器可以具有数字可编程延迟单元的延迟线。 可以通过来自延迟匹配电路的数字校正信号来调整数字可编程延迟单元。
-
公开(公告)号：US20060055574A1
公开(公告)日：2006-03-16
申请号：US10498337
申请日：2002-12-09
IPC分类号： H03M1/12
CPC分类号： H02M3/157 , G04F10/005 , H03M1/502 , H03M1/60
摘要： A voltage controller (150), the controller comprising: a voltage comparator (700) operative to provide a digital error signal (152); a compensator (300) operative to determine a digital control signal (154) based on said provided error signal; and a modulator (400) operative to provide a power control signal (156) based on said determined digital control signal, wherein said comparator, said compensator, and said modulator are implemented entirely with digital logic gates.
摘要翻译： 一种电压控制器（150），所述控制器包括：电压比较器（700），用于提供数字误差信号（152）; 补偿器（300），用于基于所述提供的误差信号确定数字控制信号（154）; 以及调制器（400），用于基于所述确定的数字控制信号提供功率控制信号（156），其中所述比较器，所述补偿器和所述调制器完全由数字逻辑门实现。
-
公开(公告)号：US09252661B2
公开(公告)日：2016-02-02
申请号：US13078798
申请日：2011-04-01
CPC分类号： H02M3/158 , H02M3/156 , H02M3/157 , H02M3/1588 , H02M2001/0003 , Y02B70/1466
摘要： Exemplary embodiments are directed to a power controller. A method may include comparing a summation voltage comprising a sum of an amplified error voltage and a reference voltage with an estimated voltage to generate a comparator output signal. The method may also include generating a gate drive signal from the comparator output signal and filtering a signal coupled to a power stage to generate the estimated voltage.
摘要翻译： 示例性实施例涉及功率控制器。 一种方法可以包括将包括放大误差电压和参考电压之和的求和电压与估计电压进行比较，以产生比较器输出信号。 该方法还可以包括从比较器输出信号产生栅极驱动信号并且滤波耦合到功率级的信号以产生估计的电压。
-
公开(公告)号：US08564260B2
公开(公告)日：2013-10-22
申请号：US12971758
申请日：2010-12-17
IPC分类号： G05F1/563
CPC分类号： H02M3/1588 , H02M2001/007 , H02M2001/009 , Y02B70/1466
摘要： A circuit converts an input voltage to an output voltage. The circuit includes a first stage voltage converter that receives the input voltage and converts the input voltage. The first stage voltage converter includes a first buck converter having a double rail output: a first rail at a high intermediate voltage and a second rail at a low intermediate voltage. The circuit also includes a second stage voltage converter that receives the output rails and produces the output voltage.
摘要翻译： 电路将输入电压转换为输出电压。 该电路包括接收输入电压并转换输入电压的第一级电压转换器。 第一级电压转换器包括具有双轨输出的第一降压转换器：处于高中压的第一导轨和处于低中压的第二导轨。 电路还包括接收输出导轨并产生输出电压的第二级电压转换器。
-
35.发明授权Glue-logic based method and system for minimizing losses in oversampled digitally controlled DC-DC converters 有权基于胶逻辑的方法和系统，用于最小化过采样数字控制DC-DC转换器中的损耗公开(公告)号：US08081041B2
公开(公告)日：2011-12-20
申请号：US12708845
申请日：2010-02-19
CPC分类号： H03K7/08 , H02M2003/1566
摘要： A practical method and system for oversampled digitally controlled DC-DC converters is presented. To minimize the switching losses while maintaining all advantages of the oversampling, “glue logic” and application specific oversampling digital pulse-width modulator are introduced. Experimental results demonstrate transient response with 50% smaller deviation than that of conventional controllers, allowing for proportional reduction in the size of the power stage output capacitor.
摘要翻译： 提出了一种用于过采样数字控制DC-DC转换器的实用方法和系统。 为了最小化开关损耗，同时保持过采样的所有优点，引入了“胶合逻辑”和应用特定的过采样数字脉宽调制器。 实验结果表明，瞬态响应比常规控制器的偏差小50％，允许功率级输出电容器的尺寸成比例的减小。
-
36.发明申请GLUE-LOGIC BASED METHOD AND SYSTEM FOR MINIMIZING LOSSES IN OVERSAMPLED DIGITALLY CONTROLLED DC-DC CONVERTERS 有权基于GLUE逻辑的方法和系统，用于在超级数字控制的DC-DC转换器中最大限度地减少损耗公开(公告)号：US20110204988A1
公开(公告)日：2011-08-25
申请号：US12708845
申请日：2010-02-19
IPC分类号： H03K7/08
CPC分类号： H03K7/08 , H02M2003/1566
摘要： A practical method and system for oversampled digitally controlled DC-DC converters is presented. To minimize the switching losses while maintaining all advantages of the oversampling, “glue logic” and application specific oversampling digital pulse-width modulator are introduced. Experimental results demonstrate transient response with 50% smaller deviation than that of conventional controllers, allowing for proportional reduction in the size of the power stage output capacitor.
摘要翻译： 提出了一种用于过采样数字控制DC-DC转换器的实用方法和系统。 为了最小化开关损耗，同时保持过采样的所有优点，引入了“胶合逻辑”和应用特定的过采样数字脉宽调制器。 实验结果表明，瞬态响应比常规控制器的偏差小50％，允许功率级输出电容器的尺寸成比例的减小。
-
37.发明申请UNIVERSAL AND FAULT-TOLERANT MULTIPHASE DIGITAL PWM CONTROLLER FOR HIGH-FREQUENCY DC-DC CONVERTERS 有权用于高频DC-DC转换器的通用和容错多用数字PWM控制器公开(公告)号：US20100141349A1
公开(公告)日：2010-06-10
申请号：US12706256
申请日：2010-02-16
申请人： Aleksandar Prodic , Zdravko Lukic
发明人： Aleksandar Prodic , Zdravko Lukic
摘要： A multiphase hybrid digital pulse width modulator can comprise a counter that is selectable between at least two different numbers of states to indicate a first portion of a switching period. Unclocked logic can indicate a second portion of the switching period. The unclocked logic can include a delay line.
摘要翻译： 多相混合数字脉冲宽度调制器可以包括可在至少两个不同数量的状态之间选择以指示切换周期的第一部分的计数器。 非时钟逻辑可以指示切换周期的第二部分。 非锁定逻辑可以包括延迟线。
-
38.发明授权Universal and fault-tolerant multiphase digital PWM controller for high-frequency DC-DC converters 有权用于高频DC-DC转换器的通用和容错多相数字PWM控制器公开(公告)号：US07667625B2
公开(公告)日：2010-02-23
申请号：US11773324
申请日：2007-07-03
申请人： Aleksandar Prodic , Zdravko Lukic
发明人： Aleksandar Prodic , Zdravko Lukic
IPC分类号： H03M7/00
摘要： A multiphase hybrid digital pulse width modulator can comprise a counter that is selectable between at least two different numbers of states to indicate a first portion of a switching period. Unclocked logic can indicate a second portion of the switching period. The unclocked logic can include a delay line.
摘要翻译： 多相混合数字脉冲宽度调制器可以包括可在至少两个不同数量的状态之间选择以指示切换周期的第一部分的计数器。 非时钟逻辑可以指示切换周期的第二部分。 非锁定逻辑可以包括延迟线。
-
39.发明授权Switch-mode power supply (SMPS) with auto-tuning using limit-cycle oscillation response evaluation 有权开关模式电源（SMPS），采用极限周期振荡响应评估进行自整定公开(公告)号：US07622820B1
公开(公告)日：2009-11-24
申请号：US12107832
申请日：2008-04-23
IPC分类号： H02M3/337
CPC分类号： H02M3/158 , H02M1/088 , H02M2001/0012 , H02M2003/1566 , Y10T307/406 , Y10T307/461
摘要： A switch-mode power supply (SMPS) with auto-tuning using limit-cycle oscillation response evaluation provides optimized performance with reduced capacitance and inductance requirements for a given design. During operation of the SMPS, parameters of the converter are extracted, and the feedback and/or feed-forward compensation is adjusted to either hold the loop bandwidth of the converter near the critical bandwidth of the output capacitors, or maintain output voltage transients within a specified limit. The compensator response is either periodically updated, or is updated in response to an event, such as detection of a transient voltage spike having a characteristic that exceeds one or more predetermined thresholds.
摘要翻译： 使用极限周期振荡响应评估的具有自整定功能的开关电源（SMPS）为给定设计降低了电容和电感要求，提供了优化的性能。 在SMPS运行期间，提取转换器的参数，并且调整反馈和/或前馈补偿以保持转换器在输出电容器的临界带宽附近的环路带宽，或将输出电压瞬变保持在一个 指定限制。 补偿器响应周期性地更新或响应于诸如检测到具有超过一个或多个预定阈值的特性的瞬态电压尖峰的事件被更新。
-
40.发明申请Digital Controller for Dc-Dc Switching Converters for Operation at Ultra-High Constant Switching Frequencies 有权用于Dc-Dc开关转换器的数字控制器，用于在超高恒定开关频率下工作公开(公告)号：US20080303501A1
公开(公告)日：2008-12-11
申请号：US11576433
申请日：2005-10-03
申请人： Aleksandar Prodic
发明人： Aleksandar Prodic
CPC分类号： H02M3/157
摘要： A digital controller for low-power DC-DC switch mode power supplies (SMPS) suitable for on-chip implementation and use in portable battery-powered systems is provided. The digital controller allows operation at ultra high constant switching frequencies and can be implemented with a simple low-power digital hardware. The digital controller includes a digital pulse width modulator (DPWM), based on a multibit 2nd orders sigma-delta (Σ-Δ) principle, and a dual-sampling mode PID compensator. The output voltage is either sampled at a frequency lower than the switching frequency (undersampled) or sampled at the switching rate. In steady-state, undersampling results in reduced power consumption, while during transients, sampling at the switching rate provides fast transient response. Another aspect of the present invention is a dual sampling/clocking scheme, which is relied on by the DPWM described. A method is also provided for controlling low power DC-DC switch mode power supplies operating at high constant switching frequencies.
摘要翻译： 提供了适用于便携式电池供电系统中片上实现和使用的低功率DC-DC开关模式电源（SMPS）的数字控制器。 数字控制器允许以超高的恒定开关频率运行，并且可以用简单的低功耗数字硬件来实现。 数字控制器包括基于多位二阶Σ-Δ（Sigma-Delta）原理的数字脉宽调制器（DPWM）和双采样模式PID补偿器。 输出电压以低于开关频率（欠采样）的频率采样或以开关速率采样。 在稳态下，欠采样会导致功耗降低，而在瞬变期间，采样开关速率提供了快速的瞬态响应。 本发明的另一方面是双取样/时钟方案，其被所描述的DPWM所依赖。 还提供了一种用于控制以高恒定开关频率工作的低功率DC-DC开关模式电源的方法。
-
-
-
-
-
-
-
-
-
搜索结果
42 条记录 (耗时 0.028 秒)
