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1. 发明申请

WO2006015015A2 DIGITAL PWM CONTROLLER 审中-公开
标题翻译：数字PWM控制器
公开(公告)号：WO2006015015A2
公开(公告)日：2006-02-09
申请号：PCT/US2005026586
申请日：2005-07-27
申请人： SILICON LAB INC , LEUNG KA Y , LEUNG KAFAI , XAIO JINWEN , WEI CHIA-LING , STORVIK ALVIN C , SAHU BIRANCHINATH , ALFANO DONALD
发明人： LEUNG KA Y , LEUNG KAFAI , XAIO JINWEN , WEI CHIA-LING , STORVIK ALVIN C , SAHU BIRANCHINATH , ALFANO DONALD
IPC分类号： H02M1/00
CPC分类号： H02M3/33515 , H02M3/157 , H02M2001/0012 , H02M2001/007
摘要： A digital controller (408, 412, 416) 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 (406) 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 (402) to provide a regulated output. The digital feedback control system (408, 412, 416) operates in accordance with predetermined operating parametrics. The digital feedback control system (408, 412, 416) also has monitoring inputs and control inputs. A microcontroller (442) 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：公开了用于控制DC-DC开关转换器的操作的数字控制器（408,412,416）。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（406），并通过将模拟输入电压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的操作转换器（402）提供经调节的输出。数字反馈控制系统（408,412,416）根据预定的操作参数进行操作。数字反馈控制系统（408,412,416）也具有监控输入和控制输入。微控制器（442）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

WO2006015000A3 FINITE STATE MACHINE DIGITAL PULSE WIDTH MODULATOR FOR A DIGITALLY CONTROLLED POWER SUPPLY 审中-公开
标题翻译：用于数字控制电源的有限状态机数字脉宽调制器
公开(公告)号：WO2006015000A3
公开(公告)日：2006-11-23
申请号：PCT/US2005026562
申请日：2005-07-27
申请人： SILICON LAB INC , LEUNG KA Y , LEUNG KAFAI
发明人： LEUNG KA Y , LEUNG KAFAI
IPC分类号： H03K7/08
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 (5618) within a switching cycle of the power supply from beginning to end thereof. A separate state machine (3704) is provided for each edge in each of pulse control signals and each is operated to generate the associated edge as a function of the sum (5612) of a fixed reference count value from the beginning of the switching cycle and a determined count value when the sum is determined (5620) to equal the actual count value.
摘要翻译：公开了一种用于生成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，在电源的开关周期内从开始到结束确定主时钟（5618）的计数值。为每个脉冲控制信号中的每个边缘提供单独的状态机（3704），并且每个状态机被操作以根据来自开关周期开始的固定参考计数值的总和（5612）来生成关联的边沿，并且当确定总和（5620）等于实际计数值时确定的计数值。

3. 发明申请

WO2008041974A3 MICROCONTROLLER UNIT (MCU) WITH SUSPEND MODE 审中-公开
标题翻译：具有悬挂模式的微控制器单元（MCU）
公开(公告)号：WO2008041974A3
公开(公告)日：2009-04-30
申请号：PCT/US2006038301
申请日：2006-10-02
申请人： LEUNG KAFAI , YONGHONG TAO
发明人： LEUNG KAFAI , YONGHONG TAO
IPC分类号： G06F1/00
CPC分类号： G06F1/3203 , G06F1/04 , G06F1/3237 , G06F1/324 , G06F1/3243 , Y02D10/126 , Y02D10/128 , Y02D10/152
摘要： A microcontroller unit having a suspend mode of operation includes a processing circuit for receiving digital information and processing said received digital information. Timing circuitry generates timing signals to the processing circuit responsive to signals received from a clock circuit which generates both an internal clock signal and an external clock signal. Circuitry for controlling the selective application of a synchronized external clock signal and the external clock signal to the timing circuitry. The circuitry applies the synchronized external clock signal to the timing circuitry in at least an active mode of operation of the microcontroller unit responsive to at least one first control signal and applies the external clock signal to the timing circuitry in at least a suspend mode of operation of the microcontroller unit responsive to at least one suspend control signal.
摘要翻译：具有暂停操作模式的微控制器单元包括用于接收数字信息并处理所接收的数字信息的处理电路。响应于从产生内部时钟信号和外部时钟信号的时钟电路接收到的信号，定时电路产生到处理电路的定时信号。用于控制将同步的外部时钟信号和外部时钟信号选择性地应用于定时电路的电路。所述电路根据至少一个第一控制信号，在所述微控制器单元的至少一个主动操作模式中将所述同步外部时钟信号施加到所述定时电路，并且至少在暂停操作模式中将所述外部时钟信号施加到所述定时电路所述微控制器单元响应于至少一个暂停控制信号。

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