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    Apparatus for integrated circuit interface and associated methods
    22.
    发明授权
    Apparatus for integrated circuit interface and associated methods 有权
    集成电路接口及相关方法的装置

    公开(公告)号：US09048777B2

    公开(公告)日：2015-06-02

    申请号：US13740028

    申请日：2013-01-11

    Applicant: Silicon Laboratories Inc.

    Inventor： Axel Thomsen

    IPC: H02P6/06 ,  H02P27/06 ,  H02P7/00 ,  H02M1/00

    CPC classification number: H02M3/07 ,  H02H9/046 ,  H02M2001/0006 ,  H02P6/14 ,  H02P6/28 ,  H02P27/06 ,  H02P31/00

    Abstract: An apparatus includes an integrated circuit (IC) adapted to be powered by a positive supply voltage. The IC includes a charge pump that is adapted to convert the positive supply voltage of the IC to a negative bias voltage. The IC further includes a bidirectional interface circuit. The bidirectional interface circuit includes an amplifier coupled to the negative bias voltage to accommodate a bidirectional input voltage of the IC. The bidirectional interface circuit further includes a comparator coupled to the negative bias voltage to accommodate the bidirectional input voltage of the IC.

    Abstract translation: 一种装置包括适于由正电源电压供电的集成电路（IC）。 IC包括电荷泵，其适于将IC的正电源电压转换为负偏置电压。 IC还包括双向接口电路。 双向接口电路包括耦合到负偏压的放大器以适应IC的双向输入电压。 双向接口电路还包括耦合到负偏置电压以适应IC的双向输入电压的比较器。

    LINEAR REGULATOR HAVING A CLOSED LOOP FREQUENCY RESPONSE BASED ON A DECOUPLING CAPACITANCE
    26.
    发明申请
    LINEAR REGULATOR HAVING A CLOSED LOOP FREQUENCY RESPONSE BASED ON A DECOUPLING CAPACITANCE 有权
    线性稳压器具有基于解耦电容的闭环频率响应

    公开(公告)号：US20160147239A1

    公开(公告)日：2016-05-26

    申请号：US14551923

    申请日：2014-11-24

    Applicant: Silicon Laboratories Inc.

    Inventor： Shouli Yan ,  Axel Thomsen ,  Praveen Kallam

    IPC: G05F1/575

    CPC classification number: G05F1/575 ,  G05F1/56 ,  G05F1/573

    Abstract: A method includes using a pass device of a linear regulator to provide an output signal to an output of the linear regulator in response to a signal that is received at a control terminal of the pass device. The method includes using the linear regulator to regulate the signal received at the control terminal based at least in part on the output signal; and controlling a closed loop frequency response of the linear regulator to cause a direct current (DC) gain of the linear regulator to extend to a frequency near or at frequency of a zero that is associated with a decoupling capacitor that is coupled to the output of the linear regulator.

    Abstract translation: 一种方法包括使用线性调节器的通过装置来响应于在通过装置的控制端子处接收的信号而向线性调节器的输出提供输出信号。 该方法包括使用线性调节器至少部分地基于输出信号来调节在控制终端处接收到的信号; 以及控制所述线性调节器的闭环频率响应，以使所述线性调节器的直流（DC）增益扩展到与耦合到所述线性调节器的输出的去耦电容器相关联的零点附近或频率处的频率 线性调节器。

    RC OSCILLATOR
    27.
    发明申请
    RC OSCILLATOR 有权
    RC振荡器

    公开(公告)号：US20160105148A1

    公开(公告)日：2016-04-14

    申请号：US14509754

    申请日：2014-10-08

    Applicant: Silicon Laboratories Inc.

    Inventor： Matthew R. Powell ,  Axel Thomsen ,  Nicholas M. Atkinson

    IPC: H03B5/24

    CPC classification number: H03B5/24 ,  H03K3/011 ,  H03K3/0231

    Abstract: A method includes using a current source to provide a charging current to a capacitor of a resistor-capacitor (RC) tank of an RC oscillator. The method includes using a resistor of the current source as a resistor for the RC tank.

    Abstract translation: 一种方法包括使用电流源向RC振荡器的电阻 - 电容（RC）槽的电容器提供充电电流。 该方法包括使用电流源的电阻器作为RC箱的电阻器。

    Apparatus for mixed signal interface acquisition circuitry and associated methods
    28.
    发明授权
    Apparatus for mixed signal interface acquisition circuitry and associated methods 有权
    用于混合信号接口采集电路和相关方法的装置

    公开(公告)号：US08762586B2

    公开(公告)日：2014-06-24

    申请号：US13799159

    申请日：2013-03-13

    Applicant: Silicon Laboratories Inc.

    Inventor： Clayton Daigle ,  Jinwen Xiao ,  Axel Thomsen ,  Subrata Roy ,  Xiaodong Wang

    IPC: G06F3/00 ,  G06F13/00

    CPC classification number: H03K19/017509

    Abstract: An integrated circuit (IC) includes a plurality of pads adapted to communicate signals with a circuit external to the IC, and a first mixed signal interface block coupled to a first pad in the plurality of pads, where the first mixed signal interface block is adapted to receive a first trigger signal from the circuit external to the IC and to provide a second trigger signal. The IC further includes a second mixed signal interface block coupled to a second pad in the plurality of pads, where the second mixed signal interface block is adapted to receive and track a first input signal from the circuit external to the IC in a first mode of operation of the IC. The second mixed signal interface block is further adapted to generate, in response to the second trigger signal, a first output signal based on the first input signal and to provide the first output signal to a digital core of the IC in a second mode of operation of the IC, where the power consumption of the IC is lower in the first mode of operation than in the second mode of operation.

    Abstract translation: 集成电路（IC）包括适于与IC外部的电路传送信号的多个焊盘以及耦合到多个焊盘中的第一焊盘的第一混合信号接口块，其中第一混合信号接口块被适配 以从IC外部的电路接收第一触发信号并提供第二触发信号。 IC还包括耦合到多个焊盘中的第二焊盘的第二混合信号接口块，其中第二混合信号接口块适于以第一模式的第一模式接收并跟踪来自IC外部的电路的第一输入信号 IC的运作。 第二混合信号接口块还适于响应于第二触发信号而产生基于第一输入信号的第一输出信号，并且在第二操作模式中将第一输出信号提供给IC的数字核心 的IC，其中IC的功耗在第一操作模式中比在第二操作模式中更低。

    Apparatus for integrated circuit interface and associated methods
    29.
    发明授权
    Apparatus for integrated circuit interface and associated methods 有权

    公开(公告)号：US10205386B2

    公开(公告)日：2019-02-12

    申请号：US14726402

    申请日：2015-05-29

    Applicant: Silicon Laboratories Inc.

    Inventor： Axel Thomsen

    IPC: H02M3/07 ,  H02P27/06 ,  H02H9/04 ,  H02P6/14 ,  H02P6/28 ,  H02M1/00 ,  H02P31/00

    Abstract: An apparatus includes an integrated circuit (IC) adapted to be powered by a positive supply voltage. The IC includes a charge pump that is adapted to convert the positive supply voltage of the IC to a negative bias voltage. The IC further includes a bidirectional interface circuit. The bidirectional interface circuit includes an amplifier coupled to the negative bias voltage to accommodate a bidirectional input voltage of the IC. The bidirectional interface circuit further includes a comparator coupled to the negative bias voltage to accommodate the bidirectional input voltage of the IC.

    Maximum supply voltage selection
    30.
    发明授权
    Maximum supply voltage selection 有权

    公开(公告)号：US10090674B2

    公开(公告)日：2018-10-02

    申请号：US14860186

    申请日：2015-09-21

    Applicant: Silicon Laboratories Inc.

    Inventor： Mohamed Mostafa Elsayed ,  Kenneth W. Fernald ,  Axel Thomsen

    IPC: H02J1/10 ,  H03K5/24

    Abstract: A method includes providing supply voltages to a supply voltage switching circuit that controls routing of the supply voltages to power consuming circuitry associated with the supply voltage switching circuit. The method includes comparing the supply voltages, including using at least one relatively lower precision comparator to compare the supply voltages for a relatively large difference between the supply voltages; and using at least one relatively higher precision comparator to compare the supply voltages for a relatively smaller difference between the supply voltages. The method further includes, based on a result of comparing the supply voltages, selectively coupling the supply voltages to at least one of an isolation well and a power supply rail of the supply voltage switching circuit.

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