公开(公告)号：US08120401B2

公开(公告)日：2012-02-21

申请号：US12622511

申请日：2009-11-20

申请人： Stewart Kenly ,  Paul W. Latham, II

发明人： Stewart Kenly ,  Paul W. Latham, II

IPC分类号： H03K7/08

CPC分类号： H03K7/08

摘要： In one embodiment, the digital pulse width modulator of these teachings includes comparators and a number of phases and capable of increasing resolution without increasing clock frequency. In another embodiment, the digital pulse width modulator (DPWM) of these teachings includes equality comparators and a number of phases and increases resolution without increasing clock frequency. A further embodiment of the system of these teachings includes a priority encoded comparator component (in one instance including a number of comparators) comparing duty cycle commands against preset minimums, that embodiment being referred to as a frequency Foldback component. Other embodiments and embodiments of the method of these teachings are also disclosed.

公开(公告)号：US20110241634A1

公开(公告)日：2011-10-06

申请号：US13159983

申请日：2011-06-14

申请人： Stewart Kenly ,  Paul W. Latham, II

发明人： Stewart Kenly ,  Paul W. Latham, II

IPC分类号： G05F1/10

CPC分类号： H02M3/156

摘要： Methods for selecting between the two modes (states) of operation, continuous conduction and discontinuous conduction, are disclosed. Systems that are capable of selecting the operating mode and operating in the continuous conduction mode or the discontinuous conduction mode are also disclosed.

公开(公告)号：US07915881B2

公开(公告)日：2011-03-29

申请号：US12556991

申请日：2009-09-10

申请人： Paul W. Latham, II ,  Stewart Kenly

发明人： Paul W. Latham, II ,  Stewart Kenly

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A method and apparatus for converting a DC voltage to a lower DC voltage, provides for conducting current from an input terminal, through an inductor to charge a capacitor connected to the inductor at an output terminal and to provide a varying range of load current from the output terminal, alternately switching the input terminal between a supply voltage and a ground potential to produce a desired voltage at the output terminal that is lower than the supply voltage, while providing the varying range of load current, and disconnecting the input terminal from both the supply voltage and the ground potential to reduce an increase in voltage at the output terminal caused by a substantial reduction in the load current, while current through the inductor adjusts in response to the reduced load current.

摘要翻译： 一种用于将DC电压转换为较低DC电压的方法和装置，提供来自输入端子的电流，通过电感器对连接到输出端子处的电感器的电容器进行充电，并提供来自 输出端子，交替地将输入端子切换到电源电压和地电位之间，以在输出端子处产生低于电源电压的期望电压，同时提供负载电流的变化范围，并且将输入端子与两端 电源电压和接地电位，以减少由于负载电流的显着降低引起的输出端子处的电压升高，而通过电感器的电流响应于减小的负载电流而调整。

公开(公告)号：US20100171479A1

公开(公告)日：2010-07-08

申请号：US12728458

申请日：2010-03-22

申请人： Paul W. Latham, II ,  Stewart Kenly

发明人： Paul W. Latham, II ,  Stewart Kenly

IPC分类号： G05F1/10

CPC分类号： H02M3/1588 ,  H03K17/687 ,  H03K2217/0018 ,  Y02B70/1466

摘要： A method and apparatus for converting a DC voltage to a lower DC voltage, provides for conducting current from an input terminal, through an inductor to charge a capacitor connected to the inductor at an output terminal and to provide a varying range of load current from the output terminal, alternately switching the input terminal between a supply voltage and a ground potential to produce a desired voltage at the output terminal that is lower than the supply voltage, while providing the varying range of load current, and disconnecting the input terminal from both the supply voltage and the ground potential to reduce an increase in voltage at the output terminal caused by a substantial reduction in the load current, while current through the inductor adjusts in response to the reduced load current.

摘要翻译： 一种用于将DC电压转换为较低DC电压的方法和装置，提供来自输入端子的电流，通过电感器对连接到输出端子处的电感器的电容器进行充电，并提供来自 输出端子，交替地将输入端子切换到电源电压和地电位之间，以在输出端子处产生低于电源电压的期望电压，同时提供负载电流的变化范围，并且将输入端子与两端 电源电压和接地电位，以减少由于负载电流的显着降低引起的输出端子处的电压升高，而通过电感器的电流响应于减小的负载电流而调整。

公开(公告)号：US20100131219A1

公开(公告)日：2010-05-27

申请号：US12622478

申请日：2009-11-20

申请人： Stewart Kenly ,  Paul W. Latham, II

发明人： Stewart Kenly ,  Paul W. Latham, II

IPC分类号： G01R19/00

CPC分类号： G01R19/0092 ,  H02M3/157 ,  H02M2001/0009

摘要： In one embodiment, the system of these teachings includes a mixed signal state estimator, and average inductor current estimator, and duty cycle calculation.

摘要翻译： 在一个实施例中，这些教导的系统包括混合信号状态估计器和平均电感器电流估计器以及占空比计算。

公开(公告)号：US20090284992A1

公开(公告)日：2009-11-19

申请号：US12119905

申请日：2008-05-13

申请人： Stewart Kenly ,  Paul W. Latham, II

发明人： Stewart Kenly ,  Paul W. Latham, II

IPC分类号： H02M3/335

CPC分类号： H02M3/156

摘要： Methods for selecting between the two modes (states) of operation, continuous conduction and discontinuous conduction, are disclosed. Systems that are capable of selecting the operating mode and operating in the continuous conduction mode or the discontinuous conduction mode are also disclosed.

摘要翻译： 公开了在两种操作模式（状态），连续传导和不连续传导之间进行选择的方法。 还公开了能够选择工作模式并在连续导通模式或不连续导通模式中工作的系统。

公开(公告)号：US08384363B2

公开(公告)日：2013-02-26

申请号：US12761718

申请日：2010-04-16

申请人： Paul W. Latham, II ,  Stewart Kenly

发明人： Paul W. Latham, II ,  Stewart Kenly

IPC分类号： G05F1/613

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A method and apparatus for converting a DC voltage to a lower DC voltage, provides for conducting current from an input terminal, through an inductor to charge a capacitor connected to the inductor at an output terminal and to provide a varying range of load current from the output terminal, alternately switching the input terminal between a supply voltage and a ground potential to produce a desired voltage at the output terminal that is lower than the supply voltage, while providing the varying range of load current, and disconnecting the input terminal from both the supply voltage and the ground potential to reduce an increase in voltage at the output terminal caused by a substantial reduction in the load current, while current through the inductor adjusts in response to the reduced load current.

公开(公告)号：US08164320B2

公开(公告)日：2012-04-24

申请号：US13012453

申请日：2011-01-24

申请人： Paul W. Latham, II ,  Stewart Kenly ,  Laszlo Balogh

发明人： Paul W. Latham, II ,  Stewart Kenly ,  Laszlo Balogh

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A system includes a first switch connected to a voltage input and a switching node. A second switch is connected to the switching node and a reference potential. A first circuit generates first rising edges and first falling edges by comparing a voltage at the switching node to a first voltage reference. The first voltage reference is between the reference potential and the voltage input. A second circuit generates second rising edges and second falling edges by comparing the switching node voltage to a second voltage reference. The second voltage reference is less than the reference potential. The controller calculates delay times based on the first rising edges, the first falling edges, the second rising edges and the second falling edges. The controller generates drive signals for the first switch and the second switch based on a duty cycle and the delay times.

摘要翻译： 系统包括连接到电压输入和开关节点的第一开关。 第二开关连接到开关节点和参考电位。 第一电路通过将开关节点处的电压与第一参考电压进行比较来产生第一上升沿和第一下降沿。 第一个参考电压在参考电位和电压输入之间。 第二电路通过将开关节点电压与第二参考电压进行比较来产生第二上升沿和第二下降沿。 第二个参考电压小于参考电位。 控制器基于第一上升沿，第一下降沿，第二上升沿和第二下降沿计算延迟时间。 控制器基于占空比和延迟时间产生第一开关和第二开关的驱动信号。

公开(公告)号：US20120062290A1

公开(公告)日：2012-03-15

申请号：US13301175

申请日：2011-11-21

申请人： Stewart Kenly ,  Paul W. Latham, II

发明人： Stewart Kenly ,  Paul W. Latham, II

IPC分类号： H03L7/08 ,  H03K7/08

CPC分类号： H03K7/08

摘要： In one embodiment, the digital pulse width modulator of these teachings includes comparators and a number of phases and capable of increasing resolution without increasing clock frequency. In another embodiment, the digital pulse width modulator (DPWM) of these teachings includes equality comparators and a number of phases and increases resolution without increasing clock frequency. A further embodiment of the system of these teachings includes a priority encoded comparator component (in one instance including a number of comparators) comparing duty cycle commands against preset minimums, that embodiment being referred to as a frequency Foldback component. Other embodiments and embodiments of the method of these teachings are also disclosed.

摘要翻译： 在一个实施例中，这些教导的数字脉冲宽度调制器包括比较器和多个相位，并且能够在不增加时钟频率的情况下提高分辨率。 在另一个实施例中，这些教导的数字脉冲宽度调制器（DPWM）包括相等比较器和多个相位，并且在不增加时钟频率的情况下增加分辨率。 这些教导的系统的另一实施例包括将占空比命令与预设最小值进行比较的优先编码比较器部件（在一个实例中包括多个比较器），该实施例被称为频率折返部件。 还公开了这些教导的方法的其他实施例和实施例。

公开(公告)号：US20110234190A1

公开(公告)日：2011-09-29

申请号：US13157874

申请日：2011-06-10

申请人： Stewart Kenly ,  Paul W. Latham, II

发明人： Stewart Kenly ,  Paul W. Latham, II

IPC分类号： G05F1/618

CPC分类号： H02M3/156

摘要： Methods for selecting between the two modes (states) of operation, continuous conduction and discontinuous conduction, are disclosed. Systems that are capable of selecting the operating mode and operating in the continuous conduction mode or the discontinuous conduction mode are also disclosed.

摘要翻译： 公开了在两种操作模式（状态），连续传导和不连续传导之间进行选择的方法。 还公开了能够选择工作模式并在连续导通模式或不连续导通模式中工作的系统。