公开(公告)号：US09520822B2

公开(公告)日：2016-12-13

申请号：US13871191

申请日：2013-04-26

Applicant: Texas Instruments Incorporated

Inventor： David Hernandez ,  Mayank Garg ,  David J. Baldwin ,  Brandon James Beckham

IPC: H02P7/29 ,  H02P25/02 ,  H02P6/18 ,  G06F3/00

CPC classification number: H02P25/032 ,  H02P6/182

Abstract: Circuits and methods for driving ERM motors are disclosed herein. An embodiment of the circuit includes an input, wherein an input signal is receivable at the input and a back EMF signal. The circuit operates in a closed loop mode when the back EMF signal is less than a lower threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase. The circuit operates in an open loop mode when the back EMF signal is greater than a high threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase.

Abstract translation: 本文公开了用于驱动ERM电动机的电路和方法。 电路的实施例包括输入，其中输入信号可在输入端接收，反馈EMF信号。 当反电动势信号小于下限阈值时，电路工作在闭环模式，而输入信号与反电动势信号之间的差异表示电动机的速度需要增加。 当反电动势信号大于高阈值时，电路工作在开环模式，输入信号和反电动势信号之间的差值表示电动机的速度需要增加。

公开(公告)号：US20140320045A1

公开(公告)日：2014-10-30

申请号：US13871191

申请日：2013-04-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： David Hernandez ,  Mayank Garg ,  David J. Baldwin ,  Brandon James Beckham

IPC: H02P25/02

CPC classification number: H02P25/032 ,  H02P6/182

Abstract: Circuits and methods for driving ERM motors are disclosed herein. An embodiment of the circuit includes an input, wherein an input signal is receivable at the input and a back EMF signal. The circuit operates in a closed loop mode when the back EMF signal is less than a lower threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase. The circuit operates in an open loop mode when the back EMF signal is greater than a high threshold value and the difference between the value of the input signal and the back EMF signal indicates that the velocity of the motor needs to increase.

Abstract translation: 本文公开了用于驱动ERM电动机的电路和方法。 电路的实施例包括输入，其中输入信号可在输入端接收，反馈EMF信号。 当反电动势信号小于下限阈值时，电路工作在闭环模式，而输入信号与反电动势信号之间的差值表明电动机的速度需要增加。 当反电动势信号大于高阈值时，电路工作在开环模式，输入信号和反电动势信号之间的差值表示电动机的速度需要增加。