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：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.