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公开(公告)号：US20140184116A1
公开(公告)日：2014-07-03
申请号：US13731081
申请日：2012-12-30
Applicant: SILICON LABORATORIES INC.
Inventor： Kenneth A. Berringer , Axel Thomsen , Pedro Pachuca , Brent Wilson , Jinwen Xiao , Scott Willingham , Kenneth W. Fernald , Paul Zavalney
Abstract: A motor control apparatus to control a motor external to the motor control apparatus includes a microcontroller unit (MCU). The MCU includes mixed signal motor control circuitry adapted to perform back electromotive force (EMF) motor control in a first mode of operation. The mixed signal motor control circuitry is further adapted to perform field oriented control (FOC) in a second mode of operation.
Abstract translation: 用于控制电动机控制装置外部的电动机的电动机控制装置包括微控制器单元（MCU）。 MCU包括混合信号电动机控制电路，其适于在第一操作模式下执行反电动势（EMF）电动机控制。 混合信号电动机控制电路还适于在第二操作模式中执行场定向控制（FOC）。
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公开(公告)号：US20140184115A1
公开(公告)日：2014-07-03
申请号：US13740028
申请日：2013-01-11
Applicant: SILICON LABORATORIES INC.
Inventor： Axel Thomsen
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。
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13.发明申请公开(公告)号：US20140002133A1
公开(公告)日：2014-01-02
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: H03K19/0175
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。
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公开(公告)号：US10063084B2
公开(公告)日：2018-08-28
申请号：US14979514
申请日：2015-12-28
Applicant: Silicon Laboratories Inc.
Inventor： Axel Thomsen , Dazhi Wei , Steffen Skaug , Praveen Kallam
IPC: H02J7/00
CPC classification number: H02J7/0083 , H02J7/0047 , H02J7/0052 , H02J7/0077 , H02J7/045 , H02J7/047 , H02J2007/0059
Abstract: An apparatus includes a digital battery charger. The digital battery charger includes an analog-to-digital converter (ADC) to convert a terminal voltage of a battery to a first digital signal. The digital battery charger further includes a digital controller coupled to the ADC to receive the first digital signal and provide a set of control signals. The digital battery charger further includes a current digital-to-analog converter (IDAC) coupled to the digital controller to receive the set of control signals and to provide a battery charging current signal.
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公开(公告)号：US09958888B2
公开(公告)日：2018-05-01
申请号：US14740386
申请日：2015-06-16
Applicant: Silicon Laboratories Inc.
Inventor： Dazhi Wei , Gang Yuan , Erik Pankratz , Imranul Islam , Praveen Kallam , Axel Thomsen , Kenneth Wilson Fernald , Jinwen Xiao
CPC classification number: G05F1/575 , G05F1/56 , H02M3/1588 , Y02B70/1466
Abstract: In one embodiment, an apparatus includes a controller to control a voltage regulator. The controller may have a first comparator circuit to compare a first reference voltage to a feedback voltage. In turn, the first comparator circuit may include: a first comparator having a first input terminal to receive the feedback voltage and a second input terminal to receive the reference voltage and an output node to output an error signal based on the comparison; and a first pre-charge circuit coupled between the first input terminal and the output node configured to pre-charge a first portion of a compensation network to a pre-charge level. The first controller may further include a second comparator circuit coupled to the first comparator circuit compare the error signal to a ramp signal and to generate a first control output to control a power train of the voltage regulator in a first mode of operation.
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Patent Agency Ranking
公开(公告)号：US20160359496A1
公开(公告)日：2016-12-08
申请号：US14732702
申请日：2015-06-06
Applicant: Silicon Laboratories Inc.
Inventor： Axel Thomsen , Alan L. Westwick , Ricky Setiawan , Rex Wong Tak Ying
CPC classification number: H03M1/0607 , H03K5/003 , H03M1/00 , H03M1/002 , H03M1/0609 , H03M1/66 , H03M1/664 , H03M1/682 , H03M1/747 , H03M1/808
Abstract: Apparatus and associated methods are disclosed for gain and offset trimming. In one exemplary embodiment, an apparatus includes a first circuit that includes a first transconductance stage to generate a first current. The first circuit has an output offset. The apparatus further includes an offset trim circuit, which includes a second circuit to provide an output voltage selectable from a plurality of voltage values, and a second transconductance stage to generate a second current in response to the output voltage of the second circuit. The output offset of the first circuit is trimmed by adding the second current to the first current.
Abstract translation: 公开了用于增益和偏移修整的装置和相关方法。 在一个示例性实施例中，一种装置包括第一电路，其包括产生第一电流的第一跨导级。 第一个电路具有输出偏移。 该装置还包括偏移调整电路，其包括提供从多个电压值可选择的输出电压的第二电路和第二跨导级，以响应于第二电路的输出电压产生第二电流。 通过将第二电流加到第一电流来修整第一电路的输出偏移。
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17.发明申请APPARATUS FOR GAIN SELECTION WITH COMPENSATION FOR PARASITIC ELEMENTS AND ASSOCIATED METHODS 有权用于增益选择的装置用于PARASITICELEMENTS和相关方法的补偿公开(公告)号：US20160359495A1
公开(公告)日：2016-12-08
申请号：US14732701
申请日：2015-06-06
Applicant: Silicon Laboratories Inc.
Inventor： Axel Thomsen , Alan L. Westwick , Ricky Setiawan , Rex Wong Tak Ying
CPC classification number: H03M1/0607 , H03K5/003 , H03M1/00 , H03M1/002 , H03M1/0609 , H03M1/66 , H03M1/664 , H03M1/682 , H03M1/747 , H03M1/808
Abstract: Apparatus and associated methods are disclosed for gain programming or selection with parasitic element compensation. In one exemplary embodiment, an apparatus includes a first circuit that has a first programmable gain, and includes a first set of components having parasitic elements. The apparatus also includes a second circuit that has a second programmable gain, and includes a second set of components having parasitic elements. The apparatus has a gain that is a product of the first and second programmable gains. A gain error because of the parasitic elements of the first and second sets of components is canceled by setting the first programmable gain as a reciprocal of the second programmable gain.
Abstract translation: 公开了用于利用寄生元件补偿进行增益编程或选择的装置和相关方法。 在一个示例性实施例中，装置包括具有第一可编程增益的第一电路，并且包括具有寄生元件的第一组分量。 该装置还包括具有第二可编程增益的第二电路，并且包括具有寄生元件的第二组分量。 该装置具有作为第一和第二可编程增益的乘积的增益。 通过将第一可编程增益设置为第二可编程增益的倒数来消除由于第一和第二组分组的寄生元件引起的增益误差。
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公开(公告)号：US09503113B1
公开(公告)日：2016-11-22
申请号：US14732702
申请日：2015-06-06
Applicant: Silicon Laboratories Inc.
Inventor： Axel Thomsen , Alan L. Westwick , Ricky Setiawan , Rex Wong Tak Ying
CPC classification number: H03M1/0607 , H03K5/003 , H03M1/00 , H03M1/002 , H03M1/0609 , H03M1/66 , H03M1/664 , H03M1/682 , H03M1/747 , H03M1/808
Abstract: Apparatus and associated methods are disclosed for gain and offset trimming. In one exemplary embodiment, an apparatus includes a first circuit that includes a first transconductance stage to generate a first current. The first circuit has an output offset. The apparatus further includes an offset trim circuit, which includes a second circuit to provide an output voltage selectable from a plurality of voltage values, and a second transconductance stage to generate a second current in response to the output voltage of the second circuit. The output offset of the first circuit is trimmed by adding the second current to the first current.
Abstract translation: 公开了用于增益和偏移修整的装置和相关方法。 在一个示例性实施例中，一种装置包括第一电路，其包括产生第一电流的第一跨导级。 第一个电路具有输出偏移。 该装置还包括偏移调整电路，其包括提供从多个电压值可选择的输出电压的第二电路和第二跨导级，以响应于第二电路的输出电压而产生第二电流。 通过将第二电流加到第一电流来修整第一电路的输出偏移。
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公开(公告)号：US20150263613A1
公开(公告)日：2015-09-17
申请号：US14726402
申请日：2015-05-29
Applicant: Silicon Laboratories Inc.
Inventor： Axel Thomsen
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。
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公开(公告)号：US09083354B2
公开(公告)日：2015-07-14
申请号：US13832708
申请日：2013-03-15
Applicant: SILICON LABORATORIES INC.
Inventor： Imranul Islam , Axel Thomsen , Paul I. Zavalney
CPC classification number: H03L7/0816 , H03L7/0814
Abstract: A method includes generating one of a first clock signal and a second clock signal from the other clock signal. The first clock signal is configured to be used to synchronize an operation of an analog system, and the second clock signal is configured to be used to synchronize an operation of a digital system. The method includes using a phase detector of the analog system to measure a timing of the first clock signal relative to the second clock signal; and the method includes controlling a delay element of the digital system to regulate the timing based on the measurement by the phase detector to suppress noise in the analog system.
Abstract translation: 一种方法包括从另一个时钟信号产生第一时钟信号和第二时钟信号中的一个。 第一时钟信号被配置为用于同步模拟系统的操作，并且第二时钟信号被配置为用于同步数字系统的操作。 该方法包括使用模拟系统的相位检测器来测量相对于第二时钟信号的第一时钟信号的定时; 并且该方法包括控制数字系统的延迟元件，以基于相位检测器的测量来调节定时，以抑制模拟系统中的噪声。
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