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    DRIVER CIRCUIT
    22.
    发明申请
    DRIVER CIRCUIT 审中-公开
    驱动电路

    公开(公告)号：US20140285925A1

    公开(公告)日：2014-09-25

    申请号：US13849102

    申请日：2013-03-22

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Rajarshi Mukhopadhyay ,  Paul Merle Emerson

    IPC: G05F3/02

    CPC classification number: H02M3/156 ,  H02M2003/1566

    Abstract: A driver circuit includes a first current source configured to sink part of the current from a power supply through a load and a second current source configured to sink part of the current from the power supply to a return path, bypassing the load, so that the current through the load is the difference between the current from the power supply and the current through the second current source.

    Abstract translation: 驱动器电路包括被配置为通过负载从电源中吸收电流的一部分的第一电流源和被配置为将部分电流从电源吸收到绕过负载的返回路径的第二电流源， 通过负载的电流是来自电源的电流与通过第二电流源的电流之间的差。

    PROXIMITY SENSING SYSTEM
    23.
    发明申请
    PROXIMITY SENSING SYSTEM 有权
    临近感应系统

    公开(公告)号：US20130176639A1

    公开(公告)日：2013-07-11

    申请号：US13712363

    申请日：2012-12-12

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Arup Polley ,  Rajarshi Mukhopadhyay ,  Reza Sharifi ,  Mark A. Wolfe

    IPC: G11B21/21

    CPC classification number: G11B21/21 ,  G11B5/6029 ,  G11B5/6076

    Abstract: A data storage system for detecting a location of a head relative to a magnetic media is described. This system comprises arms, a preamplifier circuit coupled to the arms for controlling the arms, a proximity sensing system positioned within the preamplifier circuit, the proximity sensing system comprising: an input stage for transmitting an input sense signal; a programmable gain stage coupled to receive the input sense signal and operative for transmitting a gain signal in response to receiving the input sense signal; a multiplexer coupled to receive the gain signal and at least one control signal, the multiplexer operative for transmitting a multiplexed signal; a detector coupled to receive the multiplexed signal and a second control signal, the detector operative for transmitting an output signal; wherein an amplitude associated with the output signal enables detecting the location of the head.

    Abstract translation: 描述了一种用于检测头相对于磁性介质的位置的数据存储系统。 该系统包括臂，耦合到用于控制臂的臂的前置放大器电路，位于前置放大器电路内的接近感测系统，所述接近感测系统包括：用于传输输入感测信号的输入级; 可编程增益级，其被耦合以接收所述输入检测信号并且用于响应于接收所述输入检测信号而发送增益信号; 多路复用器，其耦合以接收增益信号和至少一个控制信号，多路复用器用于发送多路复用信号; 耦合以接收所述多路复用信号的检测器和第二控制信号，所述检测器用于发送输出信号; 其中与输出信号相关联的振幅使得能够检测头部的位置。

    Isolation of circuit elements using front side deep trench etch
    25.
    发明授权
    Isolation of circuit elements using front side deep trench etch 有权

    公开(公告)号：US10199461B2

    公开(公告)日：2019-02-05

    申请号：US14924584

    申请日：2015-10-27

    Applicant: Texas Instruments Incorporated

    Inventor： Dan Carothers ,  Ricky Jackson ,  Rajarshi Mukhopadhyay ,  Ben Cook

    IPC: H01L29/06 ,  H01L21/762 ,  H01L23/522 ,  H01L49/02 ,  H01L29/417 ,  H01L21/8234

    Abstract: An integrated circuit is formed by forming an isolation trench through at least a portion of an interconnect region, at least 40 microns deep into a substrate of the integrated circuit, leaving at least 200 microns of substrate material under the isolation trench. Dielectric material is formed in the isolation trench at a substrate temperature no greater than 320° C. to form an isolation structure which separates an isolated region of the integrated circuit from at least a portion of the substrate. The isolated region contains an isolated component. The isolated region of the integrated circuit may be a region of the substrate, and/or a region of the interconnect region. The isolated region may be a first portion of the substrate which is laterally separated from a second portion of the substrate. The isolated region may be a portion of the interconnect region above the isolation structure.

    Ring amplitude measurement and mitigation
    26.
    发明授权
    Ring amplitude measurement and mitigation 有权

    公开(公告)号：US10181847B2

    公开(公告)日：2019-01-15

    申请号：US15636365

    申请日：2017-06-28

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Rajdeep Bondade ,  Nathan Schemm ,  Rajarshi Mukhopadhyay

    IPC: H03K3/00 ,  H03K17/687 ,  H03K5/1532 ,  H03K5/08 ,  H03K3/0233 ,  H03K5/24 ,  H02M1/08

    Abstract: An apparatus includes a voltage divider circuit including a plurality of series-connected capacitors and including an input terminal of one of the capacitors configured to receive a first voltage from a switch, and a ring node comprising the connection between at least two of the series-connected capacitors. The apparatus further includes a negative clamp circuit coupled to the ring node of the voltage divider circuit and a bias voltage node. The bias voltage node is configured to receive a bias voltage and responsive to a ring voltage on the ring node being less than the bias voltage, the negative clamp circuit is configured to clamp the ring voltage at a first threshold voltage. The apparatus also includes a peak detector circuit coupled to the ring node of the voltage divider circuit and configured to detect a peak amplitude of the ring voltage. The apparatus further includes a switch driver coupled to the peak detector circuit and configured to adjust a control signal to the switch responsive to the detected peak amplitude.

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