公开(公告)号：US08791753B2

公开(公告)日：2014-07-29

申请号：US13591136

申请日：2012-08-21

申请人： Saravanan Murugesan ,  Paul Walsh ,  Gerard Baldwin ,  Kaveh Hosseini

发明人： Saravanan Murugesan ,  Paul Walsh ,  Gerard Baldwin ,  Kaveh Hosseini

IPC分类号： H03F1/02 ,  G06F7/64 ,  G01R27/26

CPC分类号： H03F3/3022 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/45514 ,  H03F2203/45536

摘要： Embodiments of a capacitance sensing system including an integrating amplifier and methods for operating the same to provide a higher slew rate and bandwidth are described. In one embodiment, the integrating amplifier comprises an input stage including an inverting input coupled to an electrode of a capacitor to sense a capacitance and a non-inverting input coupled to a reference potential, and an output stage including a compensating capacitor coupled to an output. The compensating capacitor comprises two smaller capacitors coupled in parallel and a switching element configured to open when the integrating amplifier is operated in a RESET mode decoupling one of the two smaller capacitors from the output to decrease capacitance of the compensating capacitor.

摘要翻译： 描述了包括积分放大器的电容感测系统及其操作以提供更高转换速率和带宽的方法的实施例。 在一个实施例中，积分放大器包括输入级，该输入级包括耦合到电容器的电极的反相输入，用于感测耦合到参考电位的电容和非反相输入;以及输出级，包括耦合到输出的补偿电容 。 补偿电容器包括并联耦合的两个较小的电容器，以及开关元件，其被配置为当积分放大器在RESET模式下操作时断开，以从输出中去耦两个较小的电容器中的一个，以减小补偿电容器的电容。

公开(公告)号：US20230185034A1

公开(公告)日：2023-06-15

申请号：US17550520

申请日：2021-12-14

申请人： Chia-Pin Chiu ,  Omkar Karhade ,  Kaveh Hosseini ,  Xiaoqian Li ,  Finian Rogers

发明人： Chia-Pin Chiu ,  Omkar Karhade ,  Kaveh Hosseini ,  Xiaoqian Li ,  Finian Rogers

IPC分类号： G02B6/42

CPC分类号： G02B6/4214 ,  G02B6/4271

摘要： An electronic device and associated methods are disclosed. In one example, the electronic device includes a laser package. In selected examples, the laser package can include a substrate having a substrate front surface and defining a cavity that extends into the substrate front surface. The laser package can further include a photonic integrated circuit (PIC) attached to the substrate within the cavity at a first surface of the PIC, and laser circuitry communicably coupled to a second surface of the PIC opposite the first surface.

公开(公告)号：US20130278334A1

公开(公告)日：2013-10-24

申请号：US13591136

申请日：2012-08-21

申请人： Saravanan V. Murugesan ,  Paul Walsh ,  Gerard Baldwin ,  Kaveh Hosseini

发明人： Saravanan V. Murugesan ,  Paul Walsh ,  Gerard Baldwin ,  Kaveh Hosseini

IPC分类号： H03F1/56

CPC分类号： H03F3/3022 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/45514 ,  H03F2203/45536

摘要： Embodiments of a capacitance sensing system including an integrating amplifier and methods for operating the same to provide a higher slew rate and bandwidth are described. In one embodiment, the integrating amplifier comprises an input stage including an inverting input coupled to an electrode of a capacitor to sense a capacitance and a non-inverting input coupled to a reference potential, and an output stage including a compensating capacitor coupled to an output. The compensating capacitor comprises two smaller capacitors coupled in parallel and a switching element configured to open when the integrating amplifier is operated in a RESET mode decoupling one of the two smaller capacitors from the output to decrease capacitance of the compensating capacitor.

摘要翻译： 描述了包括积分放大器的电容感测系统及其操作以提供更高转换速率和带宽的方法的实施例。 在一个实施例中，积分放大器包括输入级，该输入级包括耦合到电容器的电极的反相输入，用于感测耦合到参考电位的电容和非反相输入;以及输出级，包括耦合到输出的补偿电容 。 补偿电容器包括并联耦合的两个较小的电容器，以及开关元件，其被配置为当积分放大器在RESET模式下操作时断开，以从输出中去耦两个较小的电容器中的一个，以减小补偿电容器的电容。