公开(公告)号：US20160233805A1

公开(公告)日：2016-08-11

申请号：US15019326

申请日：2016-02-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： SEIL OH ,  Tuan V. Tran ,  David R. Street ,  Juergen Luebbe ,  Quang Dieu An ,  John K. Rote

IPC: H02P6/24 ,  H02P6/28

CPC classification number: H02P6/24 ,  H02P3/14 ,  H02P3/18 ,  H02P6/182

Abstract: A circuit includes a driver circuit having a high side switch device and a low side switch device coupled to a load voltage node and a motor winding output. A controller operates the high side switch device and the low side switch device. The controller operates in a normal mode to supply current to the motor winding output for driving a motor winding when an external power supply is available to supply the load voltage node. In response to detecting a loss of the external power supply, the controller operates the high side switch device and the low side switch device in a boost mode to utilize a back electromotive force (BEMF) voltage from the motor winding to supply current to the load voltage node.

Abstract translation: 电路包括具有高侧开关装置和耦合到负载电压节点和电动机绕组输出的低侧开关装置的驱动电路。 控制器操作高侧开关装置和低侧开关装置。 当外部电源可用于提供负载电压节点时，控制器以正常模式工作以向电动机绕组输出提供电流以驱动电动机绕组。 响应于检测到外部电源的损失，控制器以升压模式操作高侧开关装置和低侧开关装置，以利用来自电动机绕组的反电动势（BEMF）电压来向负载提供电流 电压节点。

公开(公告)号：US09831852B2

公开(公告)日：2017-11-28

申请号：US15244814

申请日：2016-08-23

Applicant: Texas Instruments Incorporated

Inventor： Emmanuel Osei Boakye ,  Roland Karl Son ,  Juergen Luebbe

IPC: H03K17/687 ,  H03K3/0233 ,  H02M1/08 ,  H03K17/082

CPC classification number: H03K3/02337 ,  H02M1/08 ,  H03K17/0822

Abstract: In described examples, a transistor has: a source and a drain coupled between a supply voltage and an output terminal; and a gate terminal. A charge pump has: an output node coupled to the gate terminal; and a clock input. An oscillator is coupled to generate a clock signal. A clock enable circuit is coupled to: receive the clock signal; and selectively output the clock signal to the clock input, responsive to an enable signal. A comparator is coupled to output the enable signal in response to a comparison between a reference current and a current through a series resistor. The series resistor is coupled to the gate terminal.

公开(公告)号：US20170047731A1

公开(公告)日：2017-02-16

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: H02H9/02 ,  H03K5/08 ,  H03K17/687

CPC classification number: H03K5/08 ,  H02H3/08 ,  H02H3/087 ,  H02H3/18 ,  H02H9/02 ,  H03K17/08122 ,  H03K17/0822

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.

Abstract translation: 在所述示例中，电源接口子系统包括功率晶体管，每个功率晶体管具有：耦合在电池端子和附件端子之间的导电路径; 和控制终端。 差分放大器具有：耦合到电池端子的第一输入; 耦合到附件终端的第二输入; 和输出节点。 偏移电压源被耦合以在所述差分放大器的输入之一处引起所选极性的偏移。 偏移在第一操作模式中具有第一极性，在第二操作模式中具有第二极性。 门控制电路被耦合以响应于输出节点处的电压而在功率晶体管的所选择的一个或多个控制端上施加控制电平，并且向控制端施加截止状态控制电平（ s）的未选择的一个或多个功率晶体管。

公开(公告)号：US09893659B2

公开(公告)日：2018-02-13

申请号：US15019326

申请日：2016-02-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Seil Oh ,  Tuan V. Tran ,  David R. Street ,  Juergen Luebbe ,  Quang Dieu An ,  John K. Rote

IPC: H02P1/04 ,  H02P6/24 ,  H02P3/14 ,  H02P3/18 ,  H02P6/182

CPC classification number: H02P6/24 ,  H02P3/14 ,  H02P3/18 ,  H02P6/182

Abstract: A circuit includes a driver circuit having a high side switch device and a low side switch device coupled to a load voltage node and a motor winding output. A controller operates the high side switch device and the low side switch device. The controller operates in a normal mode to supply current to the motor winding output for driving a motor winding when an external power supply is available to supply the load voltage node. In response to detecting a loss of the external power supply, the controller operates the high side switch device and the low side switch device in a boost mode to utilize a back electromotive force (BEMF) voltage from the motor winding to supply current to the load voltage node.

公开(公告)号：US20170063369A1

公开(公告)日：2017-03-02

申请号：US15244814

申请日：2016-08-23

Applicant: Texas Instruments Incorporated

Inventor： Emmanuel Osei Boakye ,  Roland Karl Son ,  Juergen Luebbe

IPC: H03K17/687 ,  H03K3/0233 ,  H02M3/07

CPC classification number: H03K3/02337 ,  H02M1/08 ,  H03K17/0822

Abstract: In described examples, a transistor has: a source and a drain coupled between a supply voltage and an output terminal; and a gate terminal. A charge pump has: an output node coupled to the gate terminal; and a clock input. An oscillator is coupled to generate a clock signal. A clock enable circuit is coupled to: receive the clock signal; and selectively output the clock signal to the clock input, responsive to an enable signal. A comparator is coupled to output the enable signal in response to a comparison between a reference current and a current through a series resistor. The series resistor is coupled to the gate terminal.

Abstract translation: 在所述示例中，晶体管具有：耦合在电源电压和输出端之间的源极和漏极; 和门终端。 电荷泵具有：耦合到栅极端子的输出节点; 和时钟输入。 振荡器被耦合以产生时钟信号。 时钟使能电路耦合到：接收时钟信号; 并且响应于使能信号而选择性地将时钟信号输出到时钟输入端。 耦合比较器以响应于参考电流和通过串联电阻器的电流之间的比较来输出使能信号。 串联电阻耦合到栅极端子。

公开(公告)号：US20150346699A1

公开(公告)日：2015-12-03

申请号：US14821282

申请日：2015-08-07

Applicant: Texas Instruments Incorporated

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

IPC: 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.

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。

公开(公告)号：US09136787B2

公开(公告)日：2015-09-15

申请号：US14048672

申请日：2013-10-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H02P6/18 ,  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。

公开(公告)号：US10979037B2

公开(公告)日：2021-04-13

申请号：US16167151

申请日：2018-10-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H02H3/087 ,  H03K5/08 ,  H03K17/0812 ,  H02H3/18 ,  H02H3/08 ,  H03K17/082 ,  H02H9/02 ,  H02H3/44

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：US20190058463A1

公开(公告)日：2019-02-21

申请号：US16167151

申请日：2018-10-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

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

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：US10211767B2

公开(公告)日：2019-02-19

申请号：US15396989

申请日：2017-01-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

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

IPC: H02P6/18 ,  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.