公开(公告)号：US10116291B2

公开(公告)日：2018-10-30

申请号：US15232521

申请日：2016-08-09

Applicant: Texas Instruments Incorporated

Inventor： Sujan Kundapur Manohar ,  Roland Karl Son ,  Juergen Luebbe ,  Eddie W. Yu

IPC: H02H3/00 ,  H03K5/08 ,  H03K17/0812 ,  H02H3/18 ,  H02H3/08 ,  H03K17/082 ,  H02H9/02 ,  H02H3/087

Abstract: In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node. An offset voltage source is coupled to cause an offset of a selected polarity at one of the inputs to the differential amplifier. The offset has a first polarity in a first operating mode and a second polarity in a second operating mode. Gate control circuitry is coupled to apply a control level at the control terminal(s) of selected one(s) of the power transistors responsive to a voltage at the output node, and to apply an off-state control level to the control terminal(s) of unselected one(s) of the power transistors.

公开(公告)号：US20190051812A1

公开(公告)日：2019-02-14

申请号：US15671252

申请日：2017-08-08

Applicant: Texas Instruments Incorporated

Inventor： Wei-Yan Shih ,  Sudhanshu Khanna ,  Michael Zwerg ,  Juergen Luebbe ,  Gregory Allen North ,  Steven C. Bartling ,  Leah Trautmann ,  Scott Robert Summerfelt

IPC: H01L41/107 ,  B06B1/06 ,  H01L41/04 ,  H01L41/047

Abstract: A piezoelectric sensor with: (i) a capacitive element, comprising piezoelectric material; (ii) a pre-conditioning circuit, comprising circuitry for establishing a polarization of the capacitive element in a polarizing mode; and (iii) signal amplification circuitry for providing a piezoelectric-responsive output signal, in response to charge across the capacitive element in a sensing mode.

公开(公告)号：US20170117835A1

公开(公告)日：2017-04-27

申请号：US15396989

申请日：2017-01-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Qunying Li ,  Juergen Luebbe ,  Robert E. Whyte, JR.

IPC: H02P7/06 ,  G05B11/32

CPC classification number: H02P7/06 ,  G05B11/32 ,  H02P7/29

Abstract: An integrated circuit includes a motor current input voltage-to-current (VI) converter that receives a motor current sensor voltage from a motor and a reference voltage to generate an output current related to a motor's current. A motor current calibration VI converter compensates for errors in the motor current input VI converter and generates a calibration output current based on the reference voltage, wherein the output current and the calibration output current are combined to form an estimate of the motor's current.

公开(公告)号：US09575473B2

公开(公告)日：2017-02-21

申请号：US14821282

申请日：2015-08-07

Applicant: Texas Instruments Incorporated

Inventor： Qunying Li ,  Juergen Luebbe ,  Robert E. Whyte, Jr.

IPC: H02P6/18 ,  G05B11/32 ,  H02P7/29

CPC classification number: H02P7/06 ,  G05B11/32 ,  H02P7/29

Abstract: An integrated circuit includes a motor current input voltage-to-current (VI) converter that receives a motor current sensor voltage from a motor and a reference voltage to generate an output current related to a motor's current. A motor current calibration VI converter compensates for errors in the motor current input VI converter and generates a calibration output current based on the reference voltage, wherein the output current and the calibration output current are combined to form an estimate of the motor's current.

Abstract translation: 集成电路包括电动机电流输入电压 - 电流（VI）转换器，其接收来自电动机的电动机电流传感器电压和参考电压以产生与电动机电流相关的输出电流。 电动机电流校准VI转换器补偿电动机电流输入VI转换器中的误差，并基于参考电压产生校准输出电流，其中输出电流和校准输出电流被组合以形成电动机电流的估计。