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1. 发明授权

US12019124B2 Charge measurement calibration in a system using a pulse frequency modulated DC-DC converter 有权
公开(公告)号：US12019124B2
公开(公告)日：2024-06-25
申请号：US17215723
申请日：2021-03-29
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jinwen Xiao
IPC分类号： G01R31/387 , G01R31/3832 , G01R31/385
CPC分类号： G01R31/387 , G01R31/3833 , G01R31/385
摘要： A calibration current load is selectively coupled to an output of a pulse frequency modulated (PFM) DC-DC converter during a calibration operation to increase charge supplied from a battery supplying an input voltage to the converter. A voltage across a sense resistor in series with the battery is integrated during a measurement interval while the calibration current load is coupled to the output. A charge drawn per pulse from the battery is determined based on the sense resistor, the integrated voltage and the number of pulses during the measurement interval. Alternatively, a first PFM frequency is determined with a first calibration current load coupled to the converter output. A second PFM frequency is determined with a second calibration current load. The charge drawn per pulse from the battery is determined based on the first and second PFM frequencies and the first and second calibration current loads.

2. 发明授权

US08762586B2 Apparatus for mixed signal interface acquisition circuitry and associated methods 有权
标题翻译：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
申请人： Silicon Laboratories Inc.
发明人： Clayton Daigle , Jinwen Xiao , Axel Thomsen , Subrata Roy , Xiaodong Wang
IPC分类号： G06F3/00 , G06F13/00
CPC分类号： H03K19/017509
摘要： 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.
摘要翻译：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。

3. 发明授权

US10270272B2 Charge measurement in a system using a pulse frequency modulated DC-DC converter 有权
公开(公告)号：US10270272B2
公开(公告)日：2019-04-23
申请号：US15392487
申请日：2016-12-28
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jinwen Xiao
IPC分类号： H02J7/00 , G01R31/3832 , G01R31/374
摘要： The charge drawn from a battery during each switching event (pulse) of a pulse frequency modulated DC-DC converter is determined during a calibration period. based on differences in pulse rate with different current loading. Another approach calibration approach determines charge drawn from the battery by measuring voltage across a sense resistor while measuring the total pulse rate and while adding sufficient load current to ensure that the voltage is much larger than the residual offset of the measurement system. During operation, the system counts number of pulses are counted and the total charge drawn from the battery is determined based, at least in part, on the charge transferred per pulse during calibration, the operational mode, the battery voltage during calibration and operationally and the output voltage. Based on the total charge drawn and temperature (for temperature dependent battery types), the battery state of charge is estimated.

4. 发明授权

US09958888B2 Pre-charge technique for a voltage regulator 有权
公开(公告)号：US09958888B2
公开(公告)日：2018-05-01
申请号：US14740386
申请日：2015-06-16
申请人： Silicon Laboratories Inc.
发明人： Dazhi Wei , Gang Yuan , Erik Pankratz , Imranul Islam , Praveen Kallam , Axel Thomsen , Kenneth Wilson Fernald , Jinwen Xiao
IPC分类号： G05F1/575 , G05F1/56 , H02M3/158
CPC分类号： G05F1/575 , G05F1/56 , H02M3/1588 , Y02B70/1466
摘要： 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.

5. 发明申请

US20150180476A1 Apparatus for Mixed Signal Interface Circuitry and Associated Methods 审中-公开
标题翻译：混合信号接口电路和相关方法的装置
公开(公告)号：US20150180476A1
公开(公告)日：2015-06-25
申请号：US14530089
申请日：2014-10-31
申请人： Silicon Laboratories Inc.
发明人： Jinwen Xiao , Pavel Konecny , Axel Thomsen , Clayton Daigle , Xiaodong Wang , John Khoury , Alan Westwick , Shahram Tadayon
IPC分类号： H03K19/0175
CPC分类号： H03K19/017581 , H01L25/00 , H01L2924/0002 , H03K19/017509 , H01L2924/00
摘要： An integrated circuit (IC) includes a plurality of pads adapted to send or receive signals, and a plurality of mixed signal interface blocks, each of which is coupled to a corresponding pad in the plurality of pads. Furthermore, each mixed signal interface block in the plurality of mixed signal interface blocks is adapted to be configurable to provide selected functionality independently of the other mixed signal interface blocks.
摘要翻译：集成电路（IC）包括适于发送或接收信号的多个焊盘以及多个混合信号接口块，每个混合信号接口块耦合到多个焊盘中的相应焊盘。此外，多个混合信号接口块中的每个混合信号接口块适于可配置为独立于其它混合信号接口块提供所选功能。

6. 发明申请

US20140002184A1 APPARATUS FOR MIXED SIGNAL INTERFACE CIRCUITRY AND ASSOCIATED METHODS 有权
标题翻译：混合信号接口电路和相关方法的设备
公开(公告)号：US20140002184A1
公开(公告)日：2014-01-02
申请号：US13731080
申请日：2012-12-30
申请人： SILICON LABORATORIES INC.
发明人： Jinwen Xiao , Pavel Konecny , Axel Thomsen , Clayton Daigle , Xiaodong Wang , John Khoury , Alan Westwick , Shahram Tadayon
IPC分类号： H01L25/00
CPC分类号： H03K19/017581 , H01L25/00 , H01L2924/0002 , H03K19/017509 , H01L2924/00
摘要： An integrated circuit (IC) includes a plurality of pads adapted to send or receive signals, and a plurality of mixed signal interface blocks, each of which is coupled to a corresponding pad in the plurality of pads. Furthermore, each mixed signal interface block in the plurality of mixed signal interface blocks is adapted to be configurable to provide selected functionality independently of the other mixed signal interface blocks.
摘要翻译：集成电路（IC）包括适于发送或接收信号的多个焊盘以及多个混合信号接口块，每个混合信号接口块耦合到多个焊盘中的相应焊盘。此外，多个混合信号接口块中的每个混合信号接口块适于可配置为独立于其它混合信号接口块提供所选功能。

7. 发明授权

US10996281B2 Charge measurement calibration in a system using a pulse frequency modulated DC-DC converter 有权
公开(公告)号：US10996281B2
公开(公告)日：2021-05-04
申请号：US15392475
申请日：2016-12-28
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jinwen Xiao
IPC分类号： G01R35/00 , G01R31/387 , G01R31/3832
摘要： A calibration current load is selectively coupled to an output of a pulse frequency modulated (PFM) DC-DC converter during a calibration operation to increase charge supplied from a battery supplying an input voltage to the converter. A voltage across a sense resistor in series with the battery is integrated during a measurement interval while the calibration current load is coupled to the output. A charge drawn per pulse from the battery is determined based on the sense resistor, the integrated voltage and the number of pulses during the measurement interval. Alternatively, a first PFM frequency is determined with a first calibration current load coupled to the converter output. A second PFM frequency is determined with a second calibration current load. The charge drawn per pulse from the battery is determined based on the first and second PFM frequencies and the first and second calibration current loads.

8. 发明授权

US09106176B2 Apparatus for motor control system and associated methods 有权
标题翻译：电机控制系统及相关方法装置
公开(公告)号：US09106176B2
公开(公告)日：2015-08-11
申请号：US13731081
申请日：2012-12-30
申请人： Silicon Laboratories Inc.
发明人： Kenneth A Berringer , Axel Thomsen , Pedro Pachuca , Brent Wilson , Jinwen Xiao , Scott Willingham , Kenneth W Fernald , Paul Zavalney
IPC分类号： H02P6/00 , H02P21/06 , H02P7/00
CPC分类号： H02P21/06 , H02P31/00
摘要： 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.
摘要翻译：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。混合信号电机控制电路还适于在第二操作模式中执行场定向控制（FOC）。

9. 发明申请

US20140184116A1 APPARATUS FOR MOTOR CONTROL SYSTEM AND ASSOCIATED METHODS 有权
标题翻译：电机控制系统及相关方法的设备
公开(公告)号：US20140184116A1
公开(公告)日：2014-07-03
申请号：US13731081
申请日：2012-12-30
申请人： SILICON LABORATORIES INC.
发明人： Kenneth A. Berringer , Axel Thomsen , Pedro Pachuca , Brent Wilson , Jinwen Xiao , Scott Willingham , Kenneth W. Fernald , Paul Zavalney
IPC分类号： H02P6/18 , H02P25/02
CPC分类号： H02P21/06 , H02P31/00
摘要： 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.
摘要翻译：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）。

10. 发明申请

US20140002133A1 APPARATUS FOR MIXED SIGNAL INTERFACE ACQUISITION CIRCUITRY AND ASSOCIATED METHODS 有权
标题翻译：混合信号接口电路和相关方法的装置
公开(公告)号：US20140002133A1
公开(公告)日：2014-01-02
申请号：US13799159
申请日：2013-03-13
申请人： SILICON LABORATORIES INC.
发明人： Clayton Daigle , Jinwen Xiao , Axel Thomsen , Subrata Roy , Xiaodong Wang
IPC分类号： H03K19/0175
CPC分类号： H03K19/017509
摘要： 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.
摘要翻译：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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