公开(公告)号：US08818005B2

公开(公告)日：2014-08-26

申请号：US13109440

申请日：2011-05-17

申请人： Tyler Daigle ,  Julie Stultz

发明人： Tyler Daigle ,  Julie Stultz

IPC分类号： H02B1/00

CPC分类号： H03K19/00346 ,  Y10T307/74 ,  Y10T307/747 ,  Y10T307/826 ,  Y10T307/832 ,  Y10T307/858 ,  Y10T307/865

摘要： A switch controller is provided that uses one or more capacitors to generate a slow turn on/slow turn off switch control signals to suppress audible switching noise in an audio switch. In some embodiments, an analog inverter and a capacitor are used to generate the switch control signals, while in other embodiments two capacitors are used to generate the switch control signals. To conserve power between switching states, routing logic is provided that ties the switch control signals to respective voltage rails and disables selected portions of the switch controller.

摘要翻译： 提供一种开关控制器，其使用一个或多个电容器来产生缓慢的导通/慢关断开关控制信号，以抑制音频开关中的可听见的开关噪声。 在一些实施例中，使用模拟反相器和电容器来产生开关控制信号，而在其它实施例中，使用两个电容器来产生开关控制信号。 为了节省开关状态之间的功率，提供了将开关控制信号连接到各个电压轨并禁用开关控制器的选定部分的布线逻辑。

公开(公告)号：US20120293227A1

公开(公告)日：2012-11-22

申请号：US13109440

申请日：2011-05-17

申请人： Tyler Daigle ,  Julie Stultz

发明人： Tyler Daigle ,  Julie Stultz

IPC分类号： H03L5/00

CPC分类号： H03K19/00346 ,  Y10T307/74 ,  Y10T307/747 ,  Y10T307/826 ,  Y10T307/832 ,  Y10T307/858 ,  Y10T307/865

摘要： A switch controller is provided that uses one or more capacitors to generate a slow turn on/slow turn off switch control signals to suppress audible switching noise in an audio switch. In some embodiments, an analog inverter and a capacitor are used to generate the switch control signals, while in other embodiments two capacitors are used to generate the switch control signals. To conserve power between switching states, routing logic is provided that ties the switch control signals to respective voltage rails and disables selected portions of the switch controller.

摘要翻译： 提供一种开关控制器，其使用一个或多个电容器来产生缓慢的导通/慢关断开关控制信号，以抑制音频开关中的可听见的开关噪声。 在一些实施例中，使用模拟反相器和电容器来产生开关控制信号，而在其它实施例中，使用两个电容器来产生开关控制信号。 为了节省开关状态之间的功率，提供了将开关控制信号连接到各个电压轨并禁用开关控制器的选定部分的布线逻辑。

公开(公告)号：US08598913B2

公开(公告)日：2013-12-03

申请号：US13301990

申请日：2011-11-22

申请人： Tyler Daigle ,  Andrew M. Jordan

发明人： Tyler Daigle ,  Andrew M. Jordan

IPC分类号： H03K5/22

CPC分类号： H03K3/3565 ,  H03K3/35613

摘要： This document discusses, among other things, apparatus and methods for controlling a hysteresis range of a voltage comparator. In an example, an apparatus can include an amplifier having a temperature dependency, a comparator configured to receive first and second currents and to provide an output voltage indicative of a hysteretic comparison of the first and second input voltages, wherein a range of hysteresis of the apparatus is controlled over a range of temperatures. In an example, the amplifier can be configured to receive first and second input voltages and to provide the first and second currents.

摘要翻译： 本文件还讨论了用于控制电压比较器的滞后范围的装置和方法。 在一个示例中，装置可以包括具有温度依赖性的放大器，配置成接收第一和第二电流并提供指示第一和第二输入电压的迟滞比较的输出电压的比较器，其中， 装置在一定温度范围内被控制。 在一个示例中，放大器可被配置为接收第一和第二输入电压并提供第一和第二电流。

公开(公告)号：US08564375B2

公开(公告)日：2013-10-22

申请号：US13341490

申请日：2011-12-30

申请人： John R. Turner ,  Tyler Daigle

发明人： John R. Turner ,  Tyler Daigle

IPC分类号： H03L7/24

CPC分类号： H03K3/02315 ,  H03L7/0805 ,  H03L7/099 ,  H03L2207/50

摘要： In one general aspect, an apparatus can include a reference oscillator counter circuit configured to produce a reference oscillator count value based on a reference oscillator signal, and a target oscillator counter circuit configured to produce a target oscillator count value based on a target oscillator signal where the target oscillator signal has a frequency targeted for calibration against a frequency of the reference oscillator signal. The apparatus can include a difference circuit configured to calculate a difference between the reference oscillator counter value and the target oscillator counter value, and a summation circuit configured to define a trim code based on only a portion of bit values from the difference.

摘要翻译： 在一个一般方面，一种装置可以包括：参考振荡器计数器电路，被配置为基于参考振荡器信号产生参考振荡器计数值;以及目标振荡器计数器电路，被配置为基于目标振荡器信号产生目标振荡器计数值， 目标振荡器信号具有针对基准振荡器信号的频率进行校准的频率。 该装置可以包括被配置为计算参考振荡器计数器值和目标振荡器计数器值之间的差的差分电路，以及被配置为仅基于来自差值的位值的一部分来定义修剪码的求和电路。

公开(公告)号：US20130169255A1

公开(公告)日：2013-07-04

申请号：US13341357

申请日：2011-12-30

申请人： Tyler Daigle ,  Kenneth P. Snowdon ,  Nickole Gagne ,  Julie Lynn Stultz

发明人： Tyler Daigle ,  Kenneth P. Snowdon ,  Nickole Gagne ,  Julie Lynn Stultz

IPC分类号： G05F1/10

CPC分类号： G05F1/56 ,  H03K17/22

摘要： This document discusses, among other things, apparatus and methods for providing a power-on-reset signal. An example apparatus can include a regulator configured to receive a supply voltage and to provide a regulated voltage at an output, and a power-on-reset (POR) circuit including a POR comparator. The POR circuit can be configured to provide an indication that the regulated voltage is below a threshold level using an output of the POR comparator and to disable the POR comparator when the regulated voltage is above the threshold level.

摘要翻译： 本文件尤其讨论了用于提供上电复位信号的装置和方法。 示例性设备可以包括被配置为接收电源电压并在输出端提供调节电压的调节器以及包括POR比较器的上电复位（POR）电路。 POR电路可以被配置为使用POR比较器的输出提供调节电压低于阈值电平的指示，并且当调节电压高于阈值电平时禁止POR比较器。

公开(公告)号：US20120306477A1

公开(公告)日：2012-12-06

申请号：US13149399

申请日：2011-05-31

申请人： Tyler Daigle ,  Julie Lynn Stultz

发明人： Tyler Daigle ,  Julie Lynn Stultz

IPC分类号： G01R19/00

CPC分类号： H03K5/2481

摘要： An apparatus comprises an input to receive a voltage, a threshold voltage circuit, a comparison circuit, and an output. The threshold voltage circuit provides an adjustable first threshold voltage at a first output and an adjustable second threshold voltage at a second output. The comparison circuit determines when the input voltage is greater than the first voltage threshold, including when the first voltage threshold is adjusted substantially up to a high supply voltage rail, and determines when the input voltage is less than the second voltage threshold, including when the second voltage threshold is adjusted substantially down to a low supply voltage rail. The output provides a first indication when the input voltage is greater than the first voltage threshold and to provide a second indication when the input voltage is less than the second voltage threshold.

摘要翻译： 一种装置包括用于接收电压的输入，阈值电压电路，比较电路和输出。 阈值电压电路在第一输出端提供可调节的第一阈值电压，并在第二输出端提供可调节的第二阈值电压。 比较电路确定输入电压何时大于第一电压阈值，包括当第一电压阈值基本上被调节到高电源电压轨，并且确定输入电压何时小于第二电压阈值，包括何时 第二电压阈值被调节到低电源电压轨。 当输入电压大于第一电压阈值时，输出提供第一指示，并且当输入电压小于第二电压阈值时提供第二指示。

公开(公告)号：US08610489B2

公开(公告)日：2013-12-17

申请号：US13471832

申请日：2012-05-15

申请人： Tyler Daigle ,  Julie Lynn Stultz ,  Kenneth P. Snowdon

发明人： Tyler Daigle ,  Julie Lynn Stultz ,  Kenneth P. Snowdon

IPC分类号： H03K17/56

CPC分类号： H03K17/06 ,  H03K2017/6875 ,  H03K2217/0054

摘要： This document discloses, among other things, a switch circuit that includes a depletion-mode field-effect transistor (DMFET) having an ON-state and an OFF-state, wherein the DMFET is configured to couple a first node to a second node in the ON-state, and wherein the DMFET is configured to isolate the first node from the second node in the OFF-state, a negative charge pump that is coupled to a gate terminal of the DMFET, the charge pump configured to supply a negative charge pump voltage to the gate terminal of the DMFET, and a negative discriminator coupled to the charge pump, the discriminator configured to compare a first voltage at the first node and a second voltage at the second node and determine the negative charge pump voltage based on the comparison.

摘要翻译： 本文件尤其公开了一种开关电路，其包括具有导通状态和截止状态的耗尽型场效应晶体管（DMFET），其中DMFET被配置为将第一节点耦合到第二节点 所述导通状态，并且其中所述DMFET被配置为在所述关断状态下将所述第一节点与所述第二节点隔离，所述负电荷泵耦合到所述DMFET的栅极端子，所述电荷泵被配置为提供负电荷 对DMFET的栅极端子的泵浦电压和耦合到电荷泵的负鉴相器，鉴别器被配置为比较第一节点处的第一电压和第二节点处的第二电压，并且基于 比较。

公开(公告)号：US20120320481A1

公开(公告)日：2012-12-20

申请号：US13488639

申请日：2012-06-05

申请人： Nickole Gagne ,  Steve Macaluso ,  Tyler Daigle ,  Taeghyun Kang

发明人： Nickole Gagne ,  Steve Macaluso ,  Tyler Daigle ,  Taeghyun Kang

IPC分类号： H02H3/24 ,  H02H3/20

CPC分类号： H02H9/041 ,  H02H3/22 ,  H02H3/243 ,  H02H11/002

摘要： Devices, systems and methods are provided for protecting electronic circuitry from voltage transients including undervoltage transients in a supply voltage. The device may include a first low voltage isolated transistor coupled in forward bias with respect to a power supply and a second low voltage isolated transistor coupled in series with the first low voltage isolated transistor and in reverse bias with respect to the power supply voltage. The device may further include a resistor coupled between a gate of the first low voltage isolated transistor and the power supply, the resistor configured to limit current flow to the gate of the first low voltage isolated transistor during an overvoltage event.

摘要翻译： 提供了设备，系统和方法，用于保护电子电路不受电压瞬变影响，包括电源电压中的欠电压瞬变。 器件可以包括相对于电源以正向偏置耦合的第一低电压隔离晶体管和与第一低电压隔离晶体管串联耦合的第二低电压隔离晶体管，并且相对于电源电压反向偏置。 该器件还可以包括耦合在第一低压隔离晶体管的栅极和电源之间的电阻器，该电阻器被配置为在过电压事件期间限制电流流向第一低压隔离晶体管的栅极。

公开(公告)号：US20120126864A1

公开(公告)日：2012-05-24

申请号：US13299728

申请日：2011-11-18

申请人： Tyler Daigle ,  Julie Lynn Stultz

发明人： Tyler Daigle ,  Julie Lynn Stultz

IPC分类号： H03L7/00

CPC分类号： H03K17/223

摘要： This document discusses, among other things, apparatus and methods for providing power-on reset (POR) functionality using an enable circuit. In an example, an apparatus can include a supply input configured to receive a supply voltage, an enable input configured to receive an enable signal, and an inversion network configured to control an enable output using the enable signal. The inversion network can include a delay element configured to delay a first transition of the enable output in response to a rising transition of the supply voltage.

摘要翻译： 本文件尤其讨论了使用使能电路提供上电复位（POR）功能的设备和方法。 在一个示例中，设备可以包括被配置为接收电源电压的电源输入，被配置为接收使能信号的使能输入以及被配置为使用使能信号来控制使能输出的反相网络。 反向网络可以包括延迟元件，其被配置为响应于电源电压的上升转变而延迟使能输出的第一转换。

公开(公告)号：US09059692B2

公开(公告)日：2015-06-16

申请号：US13149399

申请日：2011-05-31

申请人： Tyler Daigle ,  Julie Lynn Stultz

发明人： Tyler Daigle ,  Julie Lynn Stultz

IPC分类号： G01R19/00 ,  H03K5/24

CPC分类号： H03K5/2481

摘要： An apparatus comprises an input to receive a voltage, a threshold voltage circuit, a comparison circuit, and an output. The threshold voltage circuit provides an adjustable first threshold voltage at a first output and an adjustable second threshold voltage at a second output. The comparison circuit determines when the input voltage is greater than the first voltage threshold, including when the first voltage threshold is adjusted substantially up to a high supply voltage rail, and determines when the input voltage is less than the second voltage threshold, including when the second voltage threshold is adjusted substantially down to a low supply voltage rail. The output provides a first indication when the input voltage is greater than the first voltage threshold and to provide a second indication when the input voltage is less than the second voltage threshold.

摘要翻译： 一种装置包括用于接收电压的输入，阈值电压电路，比较电路和输出。 阈值电压电路在第一输出端提供可调节的第一阈值电压，并在第二输出端提供可调节的第二阈值电压。 比较电路确定输入电压何时大于第一电压阈值，包括当第一电压阈值基本上被调节到高电源电压轨，并且确定输入电压何时小于第二电压阈值，包括何时 第二电压阈值被调节到低电源电压轨。 当输入电压大于第一电压阈值时，输出提供第一指示，并且当输入电压小于第二电压阈值时提供第二指示。