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：US06775164B2

公开(公告)日：2004-08-10

申请号：US10099661

申请日：2002-03-14

申请人： Chuck Wong ,  Paul W. Latham, II ,  Shawn Laliberte

发明人： Chuck Wong ,  Paul W. Latham, II ,  Shawn Laliberte

IPC分类号： H02M100

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M3/335

摘要： A three-terminal low-voltage PWM controller chip includes a first terminal for receiving operating bias current supply and a feedback control signal related to an output parameter of an electrical circuit to be controlled; a second terminal connected to an output switch providing digital width-modulated control pulses to control duty cycle of the electrical circuit; a third terminal ground connection; a clocked pulse width modulation circuit responsive to current flow between the second terminal and the third terminal and the feedback control value for controlling the digital output switch; and, feedback signal separation circuitry for separating the feedback control signal from the operating bias current supply. A start-up circuit is also provided.

摘要翻译： 三端低电压PWM控制器芯片包括用于接收工作偏置电流源的第一端子和与要控制的电路的输出参数相关的反馈控制信号; 连接到输出开关的第二端子，提供数字宽度调制的控制脉冲以控制电路的占空比; 第三端接地连接; 响应于第二端子和第三端子之间的电流的时钟脉冲宽度调制电路和用于控制数字输出开关的反馈控制值; 以及用于将反馈控制信号与工作偏置电流源分离的反馈信号分离电路。 还提供启动电路。

公开(公告)号：US5245262A

公开(公告)日：1993-09-14

申请号：US912387

申请日：1992-07-13

申请人： Kristaan L. Moody ,  Paul W. Latham, II

发明人： Kristaan L. Moody ,  Paul W. Latham, II

IPC分类号： G05B11/42 ,  G05B19/414

CPC分类号： G05B19/4142 ,  G05B11/42

摘要： A digitally programmable integrated-circuit analog-signal servo co-processor has digital programming contact pads to which an external microprocessor may be connected, has analog-signal input pads and analog-signal output pads, and includes a plurality of programmable analog-signal-manipulating circuits (ASMC's). Each of the ASMC's has input and output terminals connected to an input programmable-switch matrix so that one or a combination of the ASMC blocks may be connected between the analog-signal input and output contact pads of the integrated circuit. Certain ASMC blocks have microprocessor programmable transfer functions, e.g. ASMC integrator, notch filter, low pass filter, PD compensator and voltage divider. Key ones of those ASMC blocks are discrete-time circuits including switched-capacitor resistors and have transfer functions wherein the parameters are ratios of capacitances and the switching rate frequency to provide accurate and stable performance. This versatile system of digitally programmable circuit configurations and digitally programmable analog (ASMC) transfer functions provides a hybrid analog and digital servo co-processor having high speed, versatility and stability and a low power consumption.

摘要翻译： 数字可编程集成电路模拟信号伺服协处理器具有可连接外部微处理器的数字编程接触焊盘，具有模拟信号输入焊盘和模拟信号输出焊盘，并且包括多个可编程模拟信号 - 操纵电路（ASMC）。 ASMC中的每一个具有连接到输入可编程开关矩阵的输入和输出端子，使得ASMC块中的一个或其组合可以连接在集成电路的模拟信号输入和输出接触焊盘之间。 某些ASMC模块具有微处理器可编程传输功能，例如 ASMC积分器，陷波滤波器，低通滤波器，PD补偿器和分压器。 这些ASMC块中的关键是离散时间电路，包括开关电容电阻，并具有传递函数，其中参数是电容比率和开关速率频率，以提供准确和稳定的性能。 这种数字可编程电路配置和数字可编程模拟（ASMC）传输功能的多功能系统提供了具有高速度，多功能性和稳定性以及低功耗的混合模拟和数字伺服协处理器。

公开(公告)号：USH588H

公开(公告)日：1989-02-07

申请号：US108512

申请日：1987-10-13

申请人： Paul W. Latham, II

发明人： Paul W. Latham, II

IPC分类号： G11B5/012 ,  G11B5/035 ,  G11B5/09

CPC分类号： G11B5/012 ,  G11B5/035 ,  G11B5/09

摘要： A disk drive employs transversal filters as equalizers for each of its read heads, permitting adaptive equalization of read head signals, optimized for each track position.

公开(公告)号：US08253402B2

公开(公告)日：2012-08-28

申请号：US12622500

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： G05F1/44

CPC分类号： H02M3/1588 ,  H02M3/157 ,  Y02B70/1466

摘要： In one embodiment, the method of these teachings includes decomposing the output ripple voltage into its constituent components and utilizing the scale factor necessary for this decomposition to obtain the measure capacitance and ESR for a power supply/converter.

摘要翻译： 在一个实施例中，这些教导的方法包括将输出纹波电压分解成其组成部件并利用该分解所需的比例因子来获得电源/转换器的测量电容和ESR。

公开(公告)号：US08063422B2

公开(公告)日：2011-11-22

申请号：US12109846

申请日：2008-04-25

申请人： Bryan D. Ackland ,  Conor S. Rafferty ,  Paul W. Latham, II

发明人： Bryan D. Ackland ,  Conor S. Rafferty ,  Paul W. Latham, II

IPC分类号： H01L31/062

CPC分类号： H01L27/14609 ,  H01L27/14612

摘要： MOS imaging pixels are described. The MOS imaging pixels may comprise bootstrapped source followers, having their bodies connected to their sources. The source followers of the MOS imaging pixels may be used to buffer a signal indicative of an amount of radiation incident on the pixel. MOS imagers are also described, which may comprise one or more MOS imaging pixels of the type described.

摘要翻译： 描述了MOS成像像素。 MOS成像像素可以包括引导源跟随器，其主体连接到它们的源。 可以使用MOS成像像素的源跟随器来缓冲表示入射在像素上的辐射量的信号。 还描述了MOS成像器，其可以包括所描述类型的一个或多个MOS成像像素。

公开(公告)号：US07880454B2

公开(公告)日：2011-02-01

申请号：US11962571

申请日：2007-12-21

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： Systems and methods control timing of switches in power regulators and power amplifiers. The systems and methods monitor a switch node voltage and obtain rising and falling edges of signals obtained from the monitoring. The systems and methods utilize the rising and falling edges of switch drive signals and predetermined data to obtain delay times for subsequent drive signals.

摘要翻译： 系统和方法控制功率调节器和功率放大器中开关的时序。 系统和方法监测开关节点电压，并获得从监控获得的信号的上升沿和下降沿。 系统和方法利用开关驱动信号和预定数据的上升沿和下降沿来获得后续驱动信号的延迟时间。