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11.发明申请RESONANT LINE DRIVER INCLUDING ENERGY TRANSFER INDUCTOR FOR DRIVING CAPACITIVE-LOAD LINES 审中-公开谐振线路驱动器，包括用于驱动电容负载线的能量转移电感器公开(公告)号：US20160048260A1
公开(公告)日：2016-02-18
申请号：US14825942
申请日：2015-08-13
Applicant: Texas Instruments Incorporated
Inventor： Vadim V. Ivanov , William R. Krenik , Rajarshi Mukhopadhyay , Baher S. Haroun
CPC classification number: G06F3/0416 , G06F3/044
Abstract: A resonant line driver for driving capacitive-loads includes a driver series-coupled to an energy transfer inductor L1, driving signal energy at a signal frequency through L1. A switch array is controlled to switch L1 between multiple electrodes according to a switching sequence, each electrode characterized by a load capacitance CL. L1 and CL form a resonator circuit in which signal energy cycles between L1 and CL at the signal frequency. The switch array switches L1 between a current electrode and a next electrode at a zero_crossing when signal energy in the energy transfer inductor is at a maximum and signal energy in the load capacitance of the current electrode is at a minimum. An amplitude control loop controls signal energy delivered to the L1CL resonator circuit, and a frequency control loop controls signal frequency/phase. In an example application, the resonant driver provides line drive for a mutual capacitance touch screen.
Abstract translation: 用于驱动电容性负载的谐振线路驱动器包括串联耦合到能量传递电感器L1的驱动器，通过L1驱动信号频率的信号能量。 控制开关阵列以根据切换顺序在多个电极之间切换L1，每个电极的特征在于负载电容CL。 L1和CL形成谐振器电路，其中信号能量在信号频率下在L1和CL之间循环。 当能量传递电感器中的信号能量处于最大值并且当前电极的负载电容中的信号能量处于最小时，开关阵列在零交叉时在当前电极和下一个电极之间切换L1。 幅度控制环路控制传送到L1CL谐振电路的信号能量，并且频率控制环路控制信号频率/相位。 在示例应用中，谐振驱动器为互电容触摸屏提供线驱动。
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公开(公告)号：US08824078B1
公开(公告)日：2014-09-02
申请号：US13902657
申请日：2013-05-24
Applicant: Texas Instruments Incorporated
Inventor： Matthew David Rowley , Rajarshi Mukhopadhyay
Abstract: Receiver circuits and methods of processing received signals are disclosed herein. An embodiment of a receiver circuit includes a differential input having a first input and a second input and a differential output having a first output and a second output. A first feedback loop is connected to the input and the output, wherein the first feedback loop centers a differential output voltage around a common mode output voltage so that the differential sum is zero centered on the common mode output voltage. The circuit also includes a second feedback loop, wherein the second feedback loop centers the voltage at the first input and the voltage at the second input to a reference voltage.
Abstract translation: 本文公开了接收电路和处理接收信号的方法。 接收器电路的实施例包括具有第一输入和第二输入的差分输入和具有第一输出和第二输出的差分输出。 第一反馈环路连接到输入端和输出端，其中第一反馈环路围绕共模输出电压使差分输出电压居中，使得差分和为零，以共模输出电压为中心。 电路还包括第二反馈回路，其中第二反馈回路将第一输入处的电压和第二输入端的电压中心为参考电压。
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公开(公告)号：US20210231712A1
公开(公告)日：2021-07-29
申请号：US17233048
申请日：2021-04-16
Applicant: Texas Instruments Incorporated
Inventor： Olivier Trescases , Johan Tjeerd Strydom , Rajarshi Mukhopadhyay
Abstract: In circuitry for measuring a voltage at a node, a capacitive divider is coupled to the node, wherein the capacitive divider provides a first output. A resistive divider is coupled to the node, wherein the resistive divider provides a second output.
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公开(公告)号：US11050420B2
公开(公告)日：2021-06-29
申请号：US15879231
申请日：2018-01-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Rajarshi Mukhopadhyay , Nathan Schemm , Xiaonan Wang
Abstract: In described examples, bootstrap diode circuits include a first diode having a first diode input coupled to a voltage supply and a first diode output. Described bootstrap diode circuits additionally include a second diode having a second diode input coupled to the first diode output and a second diode output and a plurality of zener diodes coupled in series. The series-coupled zener diodes are further coupled in parallel with the second diode.
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公开(公告)号：US11002563B2
公开(公告)日：2021-05-11
申请号：US16844547
申请日：2020-04-09
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Arup Polley , Srinath Ramaswamy , Baher S. Haroun , Rajarshi Mukhopadhyay
Abstract: A first amplifier has an input to receive a Hall-signal output current from a first Hall element and has an output to output feedback current in response to the received Hall-signal output current. The Hall-signal output current is impeded by an impedance of the first Hall element. The feedback current is coupled to counterpoise the Hall-signal output current at the input, and a voltage at the output is an amplified Hall output signal. A second amplifier generates a high-frequency portion output signal in response to a difference between the amplified Hall output signal and a Hall-signal output signal from a second Hall element. A filter reduces high-frequency content of the high-frequency portion output signal and generates an offset correction signal. A third amplifier generates a corrected Hall signal in response to a difference between the amplified Hall output signal and the offset correction signal.
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Patent Agency Ranking
公开(公告)号：US20210083047A1
公开(公告)日：2021-03-18
申请号：US17104478
申请日：2020-11-25
Applicant: Texas Instruments Incorporated
Inventor： Dan Carothers , Ricky Jackson , Rajarshi Mukhopadhyay , Ben Cook
IPC: H01L29/06 , H01L23/522 , H01L21/762 , H01L49/02
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.
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公开(公告)号：US10854712B2
公开(公告)日：2020-12-01
申请号：US16266677
申请日：2019-02-04
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Dan Carothers , Ricky Jackson , Rajarshi Mukhopadhyay , Ben Cook
IPC: H01L29/06 , H01L23/522 , H01L21/762 , 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.
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公开(公告)号：US10742134B2
公开(公告)日：2020-08-11
申请号：US15685007
申请日：2017-08-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Lei Chen , Rajarshi Mukhopadhyay , Mark W. Morgan , Joseph A. Sankman
Abstract: A method and device for providing isolated power transfer to a low-power load across a capacitor of a series resonance circuit are shown. The method includes comparing an output voltage received via a feedback loop with a desired output voltage. Responsive to determining that the output voltage is not equal to the desired output voltage, the method determines a sub-harmonic order of the resonant frequency of the series resonance circuit to use as a switching frequency and switches the series resonance circuit at substantially the determined subharmonic order of the resonant frequency.
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公开(公告)号：US10734331B2
公开(公告)日：2020-08-04
申请号：US15678841
申请日：2017-08-16
Applicant: Texas Instruments Incorporated
Inventor： Barry Jon Male , Rajarshi Mukhopadhyay
IPC: H01L23/64 , H01F27/28 , H01F27/24 , H01L49/02 , H01L23/495 , H01F17/00 , H01L23/66 , H01F41/04 , H01L23/522
Abstract: In a described example, an integrated circuit includes: a semiconductor substrate having a first surface and an opposite second surface; at least one dielectric layer overlying the first surface of the semiconductor substrate; at least one inductor coil in the at least one dielectric layer with a plurality of coil windings separated by coil spaces, the at least one inductor coil lying in a plane oriented in a first direction parallel to the first surface of the semiconductor substrate, the at least one inductor coil electrically isolated from the semiconductor substrate by a portion of the at least one dielectric layer; and trenches extending into the semiconductor substrate in a second direction at an angle with respect to the first direction, the trenches underlying the inductor coil and filled with dielectric replacement material.
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公开(公告)号：US09762219B1
公开(公告)日：2017-09-12
申请号：US15092506
申请日：2016-04-06
Applicant: Texas Instruments Incorporated
Inventor： Nathan Schemm , Rajarshi Mukhopadhyay
IPC: H03K3/00 , H03K5/04 , H03K17/687
CPC classification number: H03K5/04 , H03K17/166
Abstract: A switched driver for a power supply includes a high-side switch and a low-side switch coupled to the high-side switch. An output is coupled between the high-side switch and the low-side switch. A switch controller is coupled to either the high-side switch or the low-side switch and has a switch controller input for receiving a switch control signal and an output for controlling a switch. The switch controller initially reduces the resistance of the switch, increases the resistance of the switch, and then reduces the resistance of the switch in response to a signal received at the input.
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