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公开(公告)号：US09263431B2
公开(公告)日：2016-02-16
申请号：US13862008
申请日：2013-04-12
发明人： Sam Zheng , Gary Sun , Steven M. Leibiger , Tyler Daigle , Julie Lynn Stultz
CPC分类号： H01L27/0266 , H01L27/0255
摘要： In certain examples an integrated circuit protection circuit can include a circuit module, and an isolation device. The isolation device can be configured to couple a ground node of the circuit module to a power ground in an on state, and to isolate the ground node of the circuit module from the power ground in an off state, wherein the isolation module is configured to enter the off state when the IC receives a negative input voltage.
摘要翻译： 在某些示例中，集成电路保护电路可以包括电路模块和隔离装置。 隔离装置可以被配置为将电路模块的接地节点耦合到处于导通状态的电源地，并将电路模块的接地节点与电源地隔离在关闭状态，其中隔离模块被配置为 当IC接收到负输入电压时，进入关闭状态。
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公开(公告)号：US20140226697A1
公开(公告)日：2014-08-14
申请号：US13766305
申请日：2013-02-13
发明人： Gregory A. Maher , Tyler Daigle
CPC分类号： H04L12/40006 , H04B3/36 , H04L12/40045
摘要： This application discusses methods and apparatus for a data-on-supply repeater. In an example, a repeater can include a repeater circuit configured to receive a power signal at an input and to provide a representation of a received analog data signal at an output, a direction detector configured to receive the power signal from a first bus conductor of a plurality of bus conductors, to identify the first buss conductor of the plurality of bus conductors as a transmitting conductor, and to provide an output indicative of the transmitting conductor, a first input multiplexer configured to couple the transmitting conductor to the input of the repeater circuit in response to the output of the direction detector, and an output multiplexer configured to couple the output of the repeater circuit to a second bus conductor of the plurality of bus conductors, wherein the second bus conductor is different than the transmitting conductor.
摘要翻译： 本应用程序讨论了供电中继器的方法和设备。 在一个示例中，中继器可以包括中继器电路，其被配置为在输入处接收功率信号，并且在输出处提供接收到的模拟数据信号的表示;方向检测器，被配置为从第一总线导体接收功率信号 多个总线导体，用于识别多个总线导体中的第一母线导体作为发射导体，并提供指示发射导体的输出;第一输入多路复用器，被配置为将发射导体耦合到中继器的输入端 响应于方向检测器的输出的电路，以及输出多路复用器，被配置为将中继器电路的输出耦合到多个总线导体中的第二总线导体，其中第二总线导体与发送导体不同。
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公开(公告)号：US20140132311A1
公开(公告)日：2014-05-15
申请号：US14074334
申请日：2013-11-07
发明人： Julie Lynn Stultz , Tyler Daigle
IPC分类号： H03K3/012
CPC分类号： H03K3/012
摘要： This application discusses, among other things, apparatus and methods for driving the bulk of a high-voltage transistor using transistors having gates with low-voltage ratings. In an example, a bulk driver can include an output configured to couple to bulk of a high-voltage transistor, a pick circuit configured to couple the output to an input voltage at an input terminal of the high-voltage transistor or an output voltage at the output terminal of the high-voltage transistor when the high-voltage transistor is in a high impedance state, and a bypass circuit configured to couple the output of the bulk driver to the output voltage when the high-voltage transistor is in a low impedance state.
摘要翻译： 除了别的以外，本申请还讨论了使用具有低电压额定值的栅极的晶体管驱动大电压晶体管的装置和方法。 在一个示例中，批量驱动器可以包括被配置为耦合到高压晶体管的大部分的输出，拾取电路，其被配置为将输出耦合到高压晶体管的输入端处的输入电压或输出电压 当高电压晶体管处于高阻抗状态时，高压晶体管的输出端子和配置成当高压晶体管处于低阻抗时将体驱动器的输出耦合到输出电压的旁路电路 州。
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公开(公告)号：US09100004B2
公开(公告)日：2015-08-04
申请号：US14072442
申请日：2013-11-05
发明人： Tyler Daigle
IPC分类号： H03K19/094 , H03K19/003 , H03K3/3565 , H03K5/00
CPC分类号： H03K19/00361 , H03K3/3565 , H03K2005/00052
摘要： A buffer system is provided that reduces threshold current using a current source to provide power to one or more stages of the buffer system. The buffer system may also include delay management techniques that balances all of, or part of, a delay that may be imparted to an input signal by the current source. In addition, hysteresis techniques may be used to provide enhanced noise management of the input signal.
摘要翻译： 提供一种缓冲系统，其使用电流源降低阈值电流，以向缓冲系统的一个或多个级提供电力。 缓冲系统还可以包括延迟管理技术，其平衡可由当前源赋予输入信号的延迟的全部或部分。 此外，可以使用滞后技术来提供输入信号的增强的噪声管理。
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公开(公告)号：US20140323184A1
公开(公告)日：2014-10-30
申请号：US14228614
申请日：2014-03-28
发明人： Tyler Daigle , Julie Lynn Stultz
CPC分类号： H03K17/063 , H02J7/0029 , H03K2217/0018 , H03K2217/0054
摘要： An apparatus comprises at least one transistor configured as analog switch, a well biasing circuit configured to provide a dynamic electrical bias to a bulk region of the at least one transistor, and a comparator circuit in electrical communication with the well biasing circuit and the transistor. The comparator circuit is configured to detect a first operating condition of the transistor and a second operating condition of the transistor. The well biasing circuit is configured to apply a first electrical bias to the bulk region of a transistor when the first operating condition is detected and apply a second electrical bias to the bulk region of the transistor when the second operating condition is detected, and wherein the comparator is configured to apply hysteresis to detection of the first and second operating conditions.
摘要翻译： 一种装置包括配置为模拟开关的至少一个晶体管，阱偏置电路，其被配置为向至少一个晶体管的体区提供动态电偏置，以及与阱偏置电路和晶体管电连通的比较器电路。 比较器电路被配置为检测晶体管的第一工作状态和晶体管的第二工作状态。 阱偏置电路被配置为当检测到第一操作条件时将第一电偏压施加到晶体管的主体区域，并且当检测到第二操作条件时将第二电偏压施加到晶体管的主体区域，并且其中， 比较器被配置为对第一和第二操作条件的检测应用滞后。
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公开(公告)号：US09294080B2
公开(公告)日：2016-03-22
申请号：US14228614
申请日：2014-03-28
发明人： Tyler Daigle , Julie Lynn Stultz
CPC分类号： H03K17/063 , H02J7/0029 , H03K2217/0018 , H03K2217/0054
摘要： An apparatus comprises at least one transistor configured as analog switch, a well biasing circuit configured to provide a dynamic electrical bias to a bulk region of the at least one transistor, and a comparator circuit in electrical communication with the well biasing circuit and the transistor. The comparator circuit is configured to detect a first operating condition of the transistor and a second operating condition of the transistor. The well biasing circuit is configured to apply a first electrical bias to the bulk region of a transistor when the first operating condition is detected and apply a second electrical bias to the bulk region of the transistor when the second operating condition is detected, and wherein the comparator is configured to apply hysteresis to detection of the first and second operating conditions.
摘要翻译： 一种装置包括配置为模拟开关的至少一个晶体管，阱偏置电路，其被配置为向至少一个晶体管的体区提供动态电偏置，以及与阱偏置电路和晶体管电连通的比较器电路。 比较器电路被配置为检测晶体管的第一工作状态和晶体管的第二工作状态。 阱偏置电路被配置为当检测到第一操作条件时将第一电偏压施加到晶体管的主体区域，并且当检测到第二操作条件时将第二电偏压施加到晶体管的主体区域，并且其中， 比较器被配置为对第一和第二操作条件的检测应用滞后。
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公开(公告)号：US20140117968A1
公开(公告)日：2014-05-01
申请号：US14061177
申请日：2013-10-23
发明人： Tyler Daigle
IPC分类号： G05F3/02
摘要： This application discusses apparatus and methods for reducing supply voltage induced band gap voltage variation. In an example, a method of compensating a reference voltage current source for supply voltage variation can include providing at least a portion if a reference current for establishing the reference voltage using a first output transistor coupled to the supply voltage, maintaining a constant voltage across the first output transistor using a second output transistor coupled between the first output transistor and an output node, modulating a compensation impedance between a first node and ground as the supply voltage varies, the first node located where the first output transistor is coupled to the second output transistor, and wherein the modulating includes modulating the compensation impedance to substantially equal an output impedance, the output impedance measured between an output node and an input for the supply voltage.
摘要翻译： 本应用讨论了降低电源电压感应带隙电压变化的装置和方法。 在一个示例中，用于补偿用于电源电压变化的参考电压电流源的方法可以包括：提供至少一部分，如果用于使用耦合到电源电压的第一输出晶体管建立参考电压的参考电流，保持恒定电压 第一输出晶体管，其使用耦合在第一输出晶体管和输出节点之间的第二输出晶体管，在电源电压变化时调制第一节点与地之间的补偿阻抗，位于第一输出晶体管耦合到第二输出端的第一节点 晶体管，并且其中所述调制包括将所述补偿阻抗调制为基本上等于输出阻抗，所述输出阻抗在输出节点和所述电源电压的输入之间测量的输出阻抗。
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公开(公告)号：US09936317B2
公开(公告)日：2018-04-03
申请号：US14928157
申请日：2015-10-30
发明人： Gregory A. Maher , Tyler Daigle
CPC分类号： H04R29/001 , H04R5/04 , H04R2420/09
摘要： Methods and apparatus for calibrating an audio system including headset coupled to an electronic device via an audio dongle. In an example, a circuit configured to couple a Universal Serial Bus (USB) audio dongle with an audio circuit of an electronic device can include a first impedance configured to couple with a first audio channel of the audio circuit, a second impedance coupled in series with the first impedance and configured to couple with a second audio channel of the audio circuit, a third impedance coupled to a ground sense channel and to a node common to the first impedance and the second impedance, and a controller configured to initiate a first signal on the first channel, to monitor crosstalk of the first signal on the second audio channel and to adjust a setting of the third impedance to reduce the crosstalk.
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公开(公告)号：US20160127828A1
公开(公告)日：2016-05-05
申请号：US14928157
申请日：2015-10-30
发明人： Gregory A. Maher , Tyler Daigle
CPC分类号： H04R29/001 , H04R5/04 , H04R2420/09
摘要： Methods and apparatus for calibrating an audio system including headset coupled to an electronic device via an audio dongle. In an example, a circuit configured to couple a Universal Serial Bus (USB) audio dongle with an audio circuit of an electronic device can include a first impedance configured to couple with a first audio channel of the audio circuit, a second impedance coupled in series with the first impedance and configured to couple with a second audio channel of the audio circuit, a third impedance coupled to a ground sense channel and to a node common to the first impedance and the second impedance, and a controller configured to initiate a first signal on the first channel, to monitor crosstalk of the first signal on the second audio channel and to adjust a setting of the third impedance to reduce the crosstalk.
摘要翻译： 用于校准包括通过音频加密狗耦合到电子设备的耳机的音频系统的方法和装置。 在一个示例中，配置成将通用串行总线（USB）音频加密狗与电子设备的音频电路耦合的电路可以包括被配置为与音频电路的第一音频通道耦合的第一阻抗，串联耦合的第二阻抗 具有第一阻抗并且被配置为与音频电路的第二音频通道耦合，耦合到接地感测通道和耦合到与第一阻抗和第二阻抗共同的节点的第三阻抗，以及被配置为启动第一信号的控制器 在第一通道上，监视第二音频通道上的第一信号的串扰并调整第三阻抗的设置以减少串扰。
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公开(公告)号：US09218014B2
公开(公告)日：2015-12-22
申请号：US14061177
申请日：2013-10-23
发明人： Tyler Daigle
摘要： This application discusses apparatus and methods for reducing supply voltage induced band gap voltage variation. In an example, a method of compensating a reference voltage current source for supply voltage variation can include providing at least a portion if a reference current for establishing the reference voltage using a first output transistor coupled to the supply voltage, maintaining a constant voltage across the first output transistor using a second output transistor coupled between the first output transistor and an output node, modulating a compensation impedance between a first node and ground as the supply voltage varies, the first node located where the first output transistor is coupled to the second output transistor, and wherein the modulating includes modulating the compensation impedance to substantially equal an output impedance, the output impedance measured between an output node and an input for the supply voltage.
摘要翻译： 本应用讨论了降低电源电压感应带隙电压变化的装置和方法。 在一个示例中，用于补偿用于电源电压变化的参考电压电流源的方法可以包括：提供至少一部分，如果用于使用耦合到电源电压的第一输出晶体管建立参考电压的参考电流，保持恒定电压 第一输出晶体管，其使用耦合在第一输出晶体管和输出节点之间的第二输出晶体管，在电源电压变化时调制第一节点与地之间的补偿阻抗，位于第一输出晶体管耦合到第二输出端的第一节点 晶体管，并且其中所述调制包括将所述补偿阻抗调制为基本上等于输出阻抗，所述输出阻抗在输出节点和所述电源电压的输入之间测量的输出阻抗。
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