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1. 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。

2. 发明申请

US20060244570A1 Distributed power supply system with shared master for controlling remote digital DC/DC converter 失效
标题翻译：具有共享主控的分布式电源系统，用于控制远程数字DC / DC转换器
公开(公告)号：US20060244570A1
公开(公告)日：2006-11-02
申请号：US11394909
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： G05B11/01
CPC分类号： H02J13/0062 , H02J1/08 , H02J13/0003 , H02M3/33515 , H02M3/33576 , H02M2001/008 , H03K3/356121 , H03K3/35613 , H03K7/08 , H03M1/363 , Y10T307/461 , Y10T307/469
摘要： A distributed power system for delivering DC power to a plurality of loads. A plurality of power converter modules having associated therewith a DC/DC power conversion operation are provided, each disposed proximate an associated one of the loads, each of said converter modules having associated therewith a switching pulse generator for generating switching pulses. A distributed power line distributes input power to each of the modules. A data communication line distributes command data between the modules. Each of the modules includes a power regulation section for receiving the input power to generate a DC output by controlling the operation of the switching pulse generator. It also includes a processing section for interfacing with the data communication line for interfacing with the commands, the processing function operating in at least a slave mode to receive commands from the data communication bus. At least one of the modules operates in both a slave mode and a master mode. In the master mode, the processing section generates commands for transmission over the data communication line to an addressed one of the other of the modules and internally for use in the local slave mode of operation. The processing section in the slave mode of operation is operable to configure and monitor the operation of the power regulation section.
摘要翻译：一种用于将DC电力传送到多个负载的分布式电力系统。提供了具有与其相关联的DC / DC功率转换操作的多个功率转换器模块，每个功率转换器模块设置在相关联的一个负载附近，每个所述转换器模块具有与其相关联的用于产生开关脉冲的开关脉冲发生器。分布式电力线将输入电力分配给每个模块。数据通信线路在模块之间分配命令数据。每个模块包括功率调节部分，用于通过控制开关脉冲发生器的操作来接收输入功率以产生DC输出。它还包括一个处理部分，用于与数据通信线对接，用于与命令进行接口，处理功能以至少从属模式操作，以从数据通信总线接收命令。至少一个模块在从模式和主模式下都工作。在主模式下，处理部分生成用于通过数据通信线路发送到另一个模块中寻址的另一个模块的命令，并在内部生成用于本地从属操作模式的命令。在从属操作模式下的处理部分可操作以配置和监视功率调节部分的操作。

3. 发明申请

US20060172783A1 Digital DC/DC converter with SYNC control 审中-公开
标题翻译：具有SYNC控制的数字DC / DC转换器
公开(公告)号：US20060172783A1
公开(公告)日：2006-08-03
申请号：US11394789
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： H04B1/38 , H04M1/00
CPC分类号： H02M3/33515 , H02M3/33576 , H03K3/356121 , H03K3/35613 , H03K7/08 , H03M1/363
摘要： A power converter is disclosed for receiving an input voltage and converting it to a DC output voltage at a different voltage level than the input voltage. It includes a switching power converter for receiving the input voltage on an input and converting the input voltage to an output as the DC output voltage in response to pulse control signals. A switching controller is provided for generating the pulse control signals during a switching cycle and a processor controls the switching controller to define the length and initiation of the switching cycle. A communication interface interfaces with a first data communication bus for receiving data therefrom and with a second communication bus for receiving timing information therefrom. The processor and the switching controller operate in either a first operating mode to control the switching controller and the generation of the pulse control signals independent of timing information, or in a second operating mode to control the timing of the generation of the pulse control signals generated by the switching controller in response to timing information received from the communication bus.
摘要翻译：公开了一种用于接收输入电压并将其转换成与输入电压不同的电压电平的DC输出电压的功率转换器。它包括用于接收输入端的输入电压的开关电源转换器，并且响应于脉冲控制信号将输入电压转换为作为直流输出电压的输出。提供开关控制器用于在开关周期期间产生脉冲控制信号，并且处理器控制开关控制器以限定开关周期的长度和启动。通信接口与第一数据通信总线接口，用于从其接收数据，并具有用于从其接收定时信息的第二通信总线。处理器和开关控制器在第一操作模式下操作以控制开关控制器和独立于定时信息的脉冲控制信号的产生，或者在第二操作模式中控制生成的脉冲控制信号的定时由开关控制器响应于从通信总线接收的定时信息。

4. 发明申请

US20060022731A1 DPWM with built-in protection functions for over current, over voltage and temperature 有权
标题翻译： DPWM具有内置的过流，过压和过压保护功能
公开(公告)号：US20060022731A1
公开(公告)日：2006-02-02
申请号：US11096043
申请日：2005-03-31
申请人： Kafai Leung , Ka Leung , Donald Alfano
发明人： Kafai Leung , Ka Leung , Donald Alfano
IPC分类号： H03K3/017
CPC分类号： H03K7/08 , H02M1/32 , H02M3/157
摘要： An apparatus for providing over current protection for a digital pulse width modulator is disclosed. The apparatus includes first logic circuitry for generating a primary interrupt indicating that a detected output current is greater than a threshold current. Second logic circuitry generates a secondary input responsive to the occurrence to the primary interrupt for a predetermined number of times.
摘要翻译：公开了一种用于为数字脉宽调制器提供过流保护的装置。该装置包括用于产生指示检测到的输出电流大于阈值电流的主中断的第一逻辑电路。第二逻辑电路响应于主中断的发生预定次数产生次级输入。

5. 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.

6. 发明申请

US20060022852A1 Digital power supply controller with integrated microcontroller 有权
标题翻译：带集成微控制器的数字电源控制器
公开(公告)号：US20060022852A1
公开(公告)日：2006-02-02
申请号：US11172738
申请日：2005-06-30
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： H03M7/34
CPC分类号： H02M3/33515 , H02M3/157 , H02M2001/0012 , H02M2001/007
摘要： A monolithic digital power supply controller is disclosed for controlling the operation of a switched power supply. The controller is contained within an integrated circuit package enclosing an integrated circuit chip. A plurality of inputs are provided on the package for interfacing with the switched power supply for receiving sensed inputs therefrom. A plurality of outputs provide switch control signals for turning on and off switches in the switched power supply. An integrated digital controller on the chip receives the inputs and generates the outputs, and includes an integrated instruction based processing engine for providing a portion of the digital control of the digital controller. A memory associated with the processing engine stores instructions for the processing engine.
摘要翻译：公开了一种用于控制开关电源的操作的单片数字电源控制器。控制器包含在封装集成电路芯片的集成电路封装中。在封装上提供多个输入，用于与开关电源接口，用于从其接收感测的输入。多个输出提供用于接通和断开开关电源中的开关的开关控制信号。芯片上的集成数字控制器接收输入并产生输出，并且包括用于提供数字控制器的数字控制的一部分的基于集成指令的处理引擎。与处理引擎相关联的存储器存储处理引擎的指令。

7. 发明申请

US20060022851A1 Digital PWM controller with programmable safe state in presence of fault 有权
公开(公告)号：US20060022851A1
公开(公告)日：2006-02-02
申请号：US11172482
申请日：2005-06-30
申请人： Ka Leung , Kafai Leung , Donald Alfano
发明人： Ka Leung , Kafai Leung , Donald Alfano
IPC分类号： H03M7/34
CPC分类号： H02M3/33515 , H02M3/157 , H02M2001/0012 , H02M2001/007
摘要： An apparatus for forcing outputs of a digital controller of a switching power converter to a safe state during shutdown of the switching power converter is described. The apparatus includes a multiplexer providing an output signal of the digital controller and having a first input of the multiplexer connected to receive a switching control signal control signal from the digital controller. The multiplexer also has a plurality of inputs from control registers providing programmed safe state values. The multiplexer connects one of the first input or the inputs from the plurality of control registers to the output of the multiplexer responsive to a multiplexer control signal. Control logic generates the multiplexer control signal responsive to at least one of an end of frame interrupt, an over current interrupt, an enable interrupt or a software bypass signal.

8. 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。

9. 发明申请

US20060083037A1 Digital PWM controller with efficiency optimization as a function of PWM duty cycle 审中-公开
标题翻译：数字PWM控制器，其效率优化作为PWM占空比的函数
公开(公告)号：US20060083037A1
公开(公告)日：2006-04-20
申请号：US11291648
申请日：2005-12-01
申请人： Ka Leung , Chia Wei , Kafai Leung , Ross Fosler
发明人： Ka Leung , Chia Wei , Kafai Leung , Ross Fosler
IPC分类号： H02M3/24
CPC分类号： H02M3/33576
摘要： A method for optimizing the efficiency of a digital power supply having at least one switch for connecting an input voltage to an input node for driving an inductive storage element connected to an out put node tp provide a regulated output voltage, and a second switch for shunting the intermediate node to ground in a complementary operation. Complementary switch control signals are generated for controlling the operation of the first and second switches, wherein the ratio of the on and off time of the first switch determines the ratio of the output voltage to the input voltage. The duty cycle is then controlled to provide a regulated voltage on the output node. A delay circuit provides a delay between the time the first switch is turned off and the second switch is turned on. For a given load, the delay is varied and then a minima for the delay is determined to provide the minimum duty cycle for the given load.
摘要翻译：一种用于优化数字电源的效率的方法，其具有用于将输入电压连接到输入节点的至少一个开关，用于驱动连接到输出节点tp的感应存储元件，提供稳定的输出电压，以及用于分流的第二开关中间节点在互补操作中进行接地。产生用于控制第一和第二开关的操作的互补开关控制信号，其中第一开关的导通和关断时间的比确定输出电压与输入电压的比率。然后控制占空比以在输出节点上提供调节电压。延迟电路在第一开关断开的时间和第二开关导通之间提供延迟。对于给定的负载，延迟变化，然后确定延迟的最小值以提供给定负载的最小占空比。

10. 发明申请

US20060023479A1 PID based controller for DC-DC converter with post-processing filters 失效
标题翻译：基于PID的控制器，用于具有后处理滤波器的DC-DC转换器
公开(公告)号：US20060023479A1
公开(公告)日：2006-02-02
申请号：US11096598
申请日：2005-03-31
申请人： Ka Leung , Kafai Leung , Jinwen Xiao
发明人： Ka Leung , Kafai Leung , Jinwen Xiao
IPC分类号： H02M3/24
CPC分类号： H02M3/3376 , H02M3/33561 , H02M3/33592 , H02M2001/0012 , Y02B70/1475
摘要： A digital PID controller for controlling the operation of a switching power converter is disclosed. A data converter is provided for converting the analog sense voltage to a digital sense voltage. A difference circuit then determines the difference between the digital sense voltage and a reference voltage as a digital error voltage, which reference voltage represents a desired output DC voltage for the power converter. A digital compensator processes the digital error voltage. The digital compensator includes a PID compensation network for compensating the digital error signal with a discrete time PID control law and a postprocessing filter for processing the output of the PID compensation network, comprised of a sinc filter with variable parameters to define the operating characteristics thereof, such that a first notch associated therewith can be placed at a desired frequency. A switching control signal generator generates switching control signals for controlling the operation of the power converter, wherein the digital compensator and the switching control signal generator operate to minimize the digital error signal. A controller for controls the operation the digital compensator to define the operating characteristics of the sinc filter.
摘要翻译：公开了一种用于控制开关电源转换器的操作的数字PID控制器。提供了一种数据转换器，用于将模拟检测电压转换为数字检测电压。然后，差分电路将数字感测电压和参考电压之间的差作为数字误差电压确定，该参考电压表示功率转换器的期望的输出直流电压。数字补偿器处理数字误差电压。数字补偿器包括用于利用离散时间PID控制定律补偿数字误差信号的PID补偿网络和用于处理PID补偿网络的输出的后处理滤波器，其包括具有可变参数的sinc滤波器以限定其操作特性，使得与其相关联的第一切口可以以期望的频率放置。开关控制信号发生器产生用于控制功率转换器的操作的开关控制信号，其中数字补偿器和开关控制信号发生器操作以最小化数字误差信号。控制器，用于控制数字补偿器的操作，以定义正弦滤波器的工作特性。

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