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1. 发明申请

WO2008083328A2 MCU WITH ON-CHIP BOOST CONVERTER CONTROLLER 审中-公开
标题翻译：具有片上升压转换器控制器的MCU
公开(公告)号：WO2008083328A2
公开(公告)日：2008-07-10
申请号：PCT/US2007/089121
申请日：2007-12-28
申请人： SILICON LABORATORIES INC. , WESTWICK, Alan, L. , LEUNG, Ka, Y.
发明人： WESTWICK, Alan, L. , LEUNG, Ka, Y.
IPC分类号： G06F1/00
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：芯片上的集成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。

2. 发明申请

WO2005099097A1 METHOD AND APPARATUS FOR SUBCLOCKING A SAR ANALOG-TO-DIGITAL CONVERTER 审中-公开
标题翻译：用于封装SAR模拟数字转换器的方法和装置
公开(公告)号：WO2005099097A1
公开(公告)日：2005-10-20
申请号：PCT/US2005/010981
申请日：2005-03-30
申请人： SILICON LABS CP, INC. , PIASECKI, DOUGLAS , LEUNG, Ka, Y. , FERNALD, Kenneth
发明人： PIASECKI, DOUGLAS , LEUNG, Ka, Y. , FERNALD, Kenneth
IPC分类号： H03M1/34
CPC分类号： H03M1/124 , H03M1/462
摘要： Method and apparatus for subclocking a SAR analog-to-digital converter. A method is disclosed for clocking the operation of a SAR analog-to-digital converter (ADC). A low frequency clock and a high frequency clock are provided. An analog input voltage is then tracked during a tracking phase to sample the value thereof. A conversion cycle referenced to an edge of the low frequency clock is then initiated. The sampled data is then converted in a conversion operation during a data conversion cycle, which conversion operation requires a plurality of conversion clock cycles. the timing of at least a portion of the conversion operation is controlled during the data conversion cycle utilizing the high frequency clock as the conversion clock.
摘要翻译： SAR模数转换器的副速度方法和装置。公开了一种用于计时SAR模数转换器（ADC）的操作的方法。提供了低频时钟和高频时钟。然后在跟踪阶段跟踪模拟输入电压以对其值进行采样。然后启动参考低频时钟边沿的转换周期。然后在数据转换周期期间以转换操作转换采样数据，该转换操作需要多个转换时钟周期。在利用高频时钟作为转换时钟的数据转换周期期间，控制转换操作的至少一部分的定时。

3. 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。

4. 发明申请

WO2006015015A3 DIGITAL PWM CONTROLLER 审中-公开
公开(公告)号：WO2006015015A3
公开(公告)日：2006-02-09
申请号：PCT/US2005/026586
申请日：2005-07-27
申请人： SILICON LABORATORIES, 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： H02M3/157 , H02M3/335
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.

5. 发明申请

WO2008083328A3 MCU WITH ON-CHIP BOOST CONVERTER CONTROLLER 审中-公开
标题翻译：具有片上升压转换器控制器的MCU
公开(公告)号：WO2008083328A3
公开(公告)日：2009-04-09
申请号：PCT/US2007089121
申请日：2007-12-28
申请人： SILICON LAB INC , WESTWICK ALAN L , LEUNG KA Y
发明人： WESTWICK ALAN L , LEUNG KA Y
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：芯片上的集成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。

6. 发明申请

WO2005099096A1 GAIN CONTROL FOR DELTA SIGMA ANALOG-TO-DIGITAL CONVERTER 审中-公开
标题翻译： DELTA SIGMA模拟到数字转换器的增益控制
公开(公告)号：WO2005099096A1
公开(公告)日：2005-10-20
申请号：PCT/US2005/010991
申请日：2005-03-30
申请人： SILICON LABS CP, INC. , HOLBERG, Douglas , LEUNG, Ka, Y
发明人： HOLBERG, Douglas , LEUNG, Ka, Y
IPC分类号： H03M1/22
CPC分类号： H03M3/484 , H03M3/49
摘要： Gain control for delta sigma analog-to-digital converter. A method is disclosed for driving the input of an integrator in a delta-sigma converter having an amplifier with a non-inverting input, an output and a positive input connected to a reference voltage and an integration capacitor connected between the non-inverting input and the output. An input voltage is sampled at a first rate onto an input sampling capacitor and then charge is dumped from the input sampling capacitor to the non-inverting input of the amplifier at a second time and at the first rate. A reference voltage is sampled onto a feedback sampling capacitor at substantially the first rate, and charge stored on the feedback sampling capacitor is dumped to the non-inverting input of the amplifier at a second rate different than the first rate. The amount of time that charge is dumped from the feedback sampling capacitor is controlled to be substantially equal to the amount of time that charge is being dumped from the input sampling capacitor, wherein varying the second rate relative to the first rate changes the gain of delta-sigma converter.
摘要翻译：增量控制用于Δ-Σ模数转换器。公开了一种用于驱动积分器的输入的方法，该Δ-Σ转换器具有放大器，其具有连接到参考电压的非反相输入，输出和正输入以及连接在非反相输入和输出。输入电压以第一速率被采样到输入采样电容器上，然后在第二时间和第一速率将电荷从输入采样电容器转储到放大器的非反相输入端。以基本上第一速率将参考电压采样到反馈采样电容器上，并且存储在反馈采样电容器上的电荷以不同于第一速率的第二速率被转储到放大器的非反相输入端。从反馈采样电容器转储电荷的时间量被控制为基本上等于从输入采样电容器转储电荷的时间量，其中相对于第一速率改变第二速率改变增量 -Σ转换器。

7. 发明申请

WO2006015000A2 FINITE STATE MACHINE DIGITAL PULSE WIDTH MODULATOR FOR A DIGITALLY CONTROLLED POWER SUPPLY 审中-公开
标题翻译：有限状态机数字脉冲宽度调制器，用于数字控制电源
公开(公告)号：WO2006015000A2
公开(公告)日：2006-02-09
申请号：PCT/US2005/026562
申请日：2005-07-27
申请人： SILICON LABORATORIES, INC. , LEUNG, Ka, Y. , LEUNG, Kafai
发明人： LEUNG, Ka, Y. , LEUNG, Kafai
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，确定电源的切换周期内的主时钟（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），并且每个脉冲控制信号中的每一个被操作以根据从开关周期开始的固定参考计数值的和（5612）生成相关边沿，并且当确定和（5620）等于实际计数值时的确定的计数值。

8. 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。

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