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1. 发明申请

US20060009150A1 Method and system for providing a context for message compression 有权
公开(公告)号：US20060009150A1
公开(公告)日：2006-01-12
申请号：US11225263
申请日：2005-09-12
申请人： Ka Leung , Khiem Le , Zhigang Liu , Christopher Clanton
发明人： Ka Leung , Khiem Le , Zhigang Liu , Christopher Clanton
IPC分类号： H04H1/00
CPC分类号： H04L69/04 , H03M7/3088 , H04L51/066
摘要： A method for providing wireless communication between a mobile station and a network station using a context for message compression is provided. Profile-specific information is stored persistently in a profile-specific dictionary. Communication is then provided between the mobile station and the network station using the profile-specific dictionary for message compression.

2. 发明申请

US20060220938A1 Digital PWM controller 有权
标题翻译：数字PWM控制器
公开(公告)号：US20060220938A1
公开(公告)日：2006-10-05
申请号：US11096597
申请日：2005-03-31
申请人： Ka Leung , Kafai Leung , Jinwen Xaio , Chia-Ling Wei , Alvin Storvik , Biranchinath Sahu , Donald Alfano
发明人： Ka Leung , Kafai Leung , Jinwen Xaio , Chia-Ling Wei , Alvin Storvik , Biranchinath Sahu , Donald Alfano
IPC分类号： H03M1/12
CPC分类号： H02M3/33515 , H02M3/33569 , H02M3/33592 , Y02B70/1475
摘要： A digital controller for controlling the operation of a DC-DC switching converter is disclosed. A digital feedback control system is provided for receiving an analog input voltage representing the output of the switching converter and digitally processing the analog input voltage by comparing it to a reference voltage and then determining analog drive signals to control the operation of the switching converter to provide a regulated output. The digital feedback control system operates in accordance with predetermined operating parametrics. The digital feedback control system also has monitoring inputs and control inputs. A microcontroller monitors the operation of the digital feedback control system and is able to change the operating parametrics under certain predetermined conditions.
摘要翻译：公开了一种用于控制DC-DC开关转换器的操作的数字控制器。提供数字反馈控制系统，用于接收表示开关转换器的输出的模拟输入电压，并通过将其与参考电压进行比较来数字处理模拟输入电压，然后确定模拟驱动信号以控制开关转换器的操作以提供监管产出。数字反馈控制系统根据预定的操作参数进行操作。数字反馈控制系统还具有监控输入和控制输入。微控制器监视数字反馈控制系统的操作，并且能够在某些预定条件下改变操作参数。

3. 发明申请

US20060033650A1 Finite state machine digital pulse width modulator for a digitally controlled power supply 失效
标题翻译：用于数字电源的有限状态机数字脉宽调制器
公开(公告)号：US20060033650A1
公开(公告)日：2006-02-16
申请号：US11172358
申请日：2005-06-30
申请人： Ka Leung , Kafai Leung
发明人： Ka Leung , Kafai Leung
IPC分类号： H03M3/00
CPC分类号： H03K3/356121 , H02M3/33515 , H02M3/33576 , H03K3/35613 , H03K7/08 , H03M1/363
摘要： A method is disclosed for generating pulse width modulated pulse control signals for controlling switches in a switching power supply. First, a count value is determined of a master clock within a switching cycle of the power supply from beginning to end thereof. A separate state machine providing for each edge in each of pulse control signals and each is operated to generate the associated edge as a function of the sum of a fixed reference count value from the beginning of the switching cycle and a determined count value when the sum is determined to equal the actual count value.
摘要翻译：公开了一种用于产生用于控制开关电源中的开关的脉宽调制脉冲控制信号的方法。首先，从开始到结束，确定电源的开关周期内的主时钟的计数值。提供每个脉冲控制信号中的每个边缘的单独的状态机，并且每个边缘被操作以根据从开关周期开始的固定基准计数值和确定的计数值之和产生相关边沿，当总和被确定为等于实际计数值。

4. 发明申请

US20060033647A1 Digital power supply with programmable soft start 有权
标题翻译：数字电源，可编程软启动
公开(公告)号：US20060033647A1
公开(公告)日：2006-02-16
申请号：US11172484
申请日：2005-06-30
申请人： Ka Leung , Chia-Ling Wei
发明人： Ka Leung , Chia-Ling Wei
IPC分类号： H03M7/00
CPC分类号： H02M1/36 , H02M3/157 , Y10S323/901
摘要： A system for controlling a soft start for a switching power converter includes a digital controller that enables the programming of a plurality of input voltage profiles during a soft start condition of the switching power converter. The programming of the plurality of input voltage profiles is parameterized by a control parameter. A microcontroller determines the control parameter used by said digital controller and operates independently of the operation of the digital controller.
摘要翻译：用于控制开关电源转换器的软启动的系统包括数字控制器，其能够在开关功率转换器的软启动条件期间对多个输入电压分布进行编程。通过控制参数对多个输入电压分布的编程进行参数化。微控制器确定由所述数字控制器使用的控制参数，并独立于数字控制器的操作进行操作。

5. 发明授权

US06985101B2 High speed comparator with blocking switches for SAR convertor 失效
标题翻译：具有SAR转换器阻塞开关的高速比较器
公开(公告)号：US06985101B2
公开(公告)日：2006-01-10
申请号：US10735164
申请日：2003-12-12
申请人： Ka Leung , Doug Piasecki
发明人： Ka Leung , Doug Piasecki
IPC分类号： H03M1/12 , H03M1/34
CPC分类号： H03M1/1057 , H03M1/468
摘要： Open loop common mode driver for switched capacitor input to SAR. A method for controlling the operation of a SAR conversion cycle. The method includes the steps of first initiating the SAR conversion cycle by connecting one side of a plurality of capacitors in a capacitor array to a first capacitor reference voltage and the other side of the plurality of capacitors to the input of a comparator. This is followed by the step of sequentially switching in a plurality of compare cycles the one side of a select one or ones of the capacitors to a second capacitor reference voltage to change the voltage on the input of the comparator. Then, a compare operation is initiated after initiation of each compare cycle to compare the value on the input of the comparator with a compare reference voltage after a predetermined settling time has elapsed from the beginning of the initiation of each compare cycle. During the compare cycle, transients due to voltage variations on the input of the comparator are reduced as a result of the step of sequentially switching, the reduction operating for a predetermined portion of the associated compare cycle.
摘要翻译：用于开关电容输入到SAR的开环共模驱动器。一种控制SAR转换周期运行的方法。该方法包括以下步骤：首先通过将电容器阵列中的多个电容器的一侧连接到第一电容器参考电压并且将多个电容器的另一侧连接到比较器的输入来启动SAR转换周期。接下来是将多个比较周期中的一个或多个电容器依次切换到第二电容器参考电压以改变比较器输入端的电压的步骤。然后，在每个比较周期开始之后开始比较操作，以便在从每个比较周期的开始开始经过预定的建立时间之后将比较器的输入上的值与比较参考电压进行比较。在比较周期期间，由于顺序切换的步骤，相关联的比较周期的预定部分的减小操作，由于比较器输入端的电压变化导致的瞬变减小。

6. 发明申请

US20070168681A1 MCU with low power mode of operation 有权
标题翻译： MCU具有低功耗工作模式
公开(公告)号：US20070168681A1
公开(公告)日：2007-07-19
申请号：US11301579
申请日：2005-12-13
申请人： Ka Leung
发明人： Ka Leung
IPC分类号： G06F1/00
CPC分类号： H02M1/36 , G06F1/3203 , G06F1/324 , G06F1/3296 , H02M3/156 , H03K3/3545 , Y02D10/126 , Y02D10/172
摘要： A low power system is disclosed for working in conjunction with a digital circuit that is disposed between positive and negative terminals. The system includes an internal voltage generator for increasing, for at least a first portion of the digital circuit, a voltage difference between the at least a first portion of the digital circuit and the voltage on at least one of the positive and negative terminals during a low power mode of operation. This allows the voltage across the at least first portion of the digital circuit to be less than the full voltage across the positive and negative terminals.
摘要翻译：公开了一种与设置在正极和负极之间的数字电路一起工作的低功率系统。该系统包括内部电压发生器，用于在数字电路的至少第一部分期间增加数字电路的至少第一部分与正端子和负极端子中的至少一个上的电压之间的电压差低功耗运行模式。这允许跨越数字电路的至少第一部分的电压小于正极和负极两端的全部电压。

7. 发明申请

US20070132436A1 MCU WITH ON-CHIP BOOST CONVERTER CONTROLLER 失效
标题翻译：具有片上升压转换器控制器的MCU
公开(公告)号：US20070132436A1
公开(公告)日：2007-06-14
申请号：US11618433
申请日：2006-12-29
申请人： Alan Westwick , Ka Leung
发明人： Alan Westwick , Ka Leung
IPC分类号： G05F1/253
CPC分类号： H02M3/156
摘要： An integrated system on a chip includes processing circuitry that performs predefined digital processing functions on the chip. The processing circuitry operates responsive to a regulated voltage. An on-chip boost converter generates the regulated voltage responsive to an off-chip voltage provided by an off chip voltage source. The regulated voltage source has a voltage level greater than the off-chip voltage.
摘要翻译：芯片上集成的系统包括在芯片上执行预定义的数字处理功能的处理电路。处理电路响应于调节电压而工作。片上升压转换器响应于由片外电压源提供的片外电压产生调节电压。调节电压源具有大于片外电压的电压电平。

8. 发明申请

US20070036212A1 Digital Controller Based Power Factor Correction Circuit 失效
标题翻译：基于数字控制器的功率因数校正电路
公开(公告)号：US20070036212A1
公开(公告)日：2007-02-15
申请号：US11382009
申请日：2006-05-05
申请人： Ka Leung , Donald Alfano , Ross Fosler
发明人： Ka Leung , Donald Alfano , Ross Fosler
IPC分类号： H03B1/00
CPC分类号： H02M3/157 , H02M1/42 , H03K17/0822 , Y02B70/12
摘要： A power factor correction circuit utilizes a digital controller string comprised of an analog-to-digital converter, which is input to a digital compensator followed by a pulse width modulation circuit for generating a switching pulse. The loop current in a regulator circuit such as a boost regulator is sensed and input to one side of a differential analog-to-digital converter, the other side thereof providing a digital reference current. This digital reference current is derived from comparing the input AC voltage to the regulator with the DC output voltage and processing these two voltages with a PFC algorithm to provide this reference voltage.
摘要翻译：功率因数校正电路利用由模数转换器组成的数字控制器串，其输入到数字补偿器，随后是用于产生开关脉冲的脉宽调制电路。调节器电路（例如升压调节器）中的回路电流被感测并输入到差分模数转换器的一侧，其另一侧提供数字参考电流。该数字参考电流是通过将输入AC电压与调节器与直流输出电压进行比较而得到的，并使用PFC算法处理这两个电压以提供该参考电压。

9. 发明申请

US20060279969A1 Distributed power supply system with separate SYNC control for controlling remote digital DC/DC converters 有权
公开(公告)号：US20060279969A1
公开(公告)日：2006-12-14
申请号：US11396145
申请日：2006-03-31
申请人： Kafai Leung , Ka Leung , Donald Alfano
发明人： Kafai Leung , Ka Leung , Donald Alfano
IPC分类号： H02M1/14
CPC分类号： H02M3/33515 , H02M3/33576 , H03K3/356121 , H03K3/35613 , H03K7/08 , H03M1/363 , Y10T307/477
摘要： A distributed power system for delivering DC power to a plurality of loads. A plurality of switching DC/DC converter modules are provided, each disposed proximate one of the loads, and each having associated therewith a switching pulse generator for generating switching pulses. A distributed power line distributes input power to each of the modules and a data communication line distributes command data between the modules, each of the modules uniquely addressable over the data communication line. A timing communication line is also provided for distributing timing information to each of the switching pulse generators. A master controller generates commands and communicates them to the data modules over the data communication line, the master controller operable to generate timing information over the timing communication line to each of the modules for controlling the associated switching pulse generator.

10. 发明申请

US20060214711A1 Programmable pattern generator for digital power supply controller 审中-公开
标题翻译：数字电源控制器的可编程模式发生器
公开(公告)号：US20060214711A1
公开(公告)日：2006-09-28
申请号：US11089349
申请日：2005-03-24
申请人： Preston Fick , Donald Alfano , Ka Leung
发明人： Preston Fick , Donald Alfano , Ka Leung
IPC分类号： H03K3/017
CPC分类号： H03K7/08 , H02M3/157
摘要： A method is disclosed for programming a pattern generator wherein a provided graphical user interface enables the manipulation of a plurality of outputs of a digital pulse width modulator. Received user input is used to manipulate the graphical representation of at least one of the plurality of outputs of the digital pulse width modulator and source code is generated from this graphical representation. The source code may then be output to a controller of the digital pulse width modulator.
摘要翻译：公开了一种用于编程模式生成器的方法，其中所提供的图形用户界面使得能够操纵数字脉宽调制器的多个输出。接收的用户输入用于操纵数字脉宽调制器的多个输出中的至少一个的图形表示，并且从该图形表示生成源代码。然后可以将源代码输出到数字脉宽调制器的控制器。

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