公开(公告)号：US09523566B2

公开(公告)日：2016-12-20

申请号：US14310536

申请日：2014-06-20

Applicant: STMicroelectronics S.r.l.

Inventor： Giuseppe D'Angelo ,  Giovanni Moselli ,  Virginia Clemente

IPC: H02P6/00 ,  G01B7/00 ,  H02P6/18

CPC classification number: G01B7/003 ,  H02P6/18

Abstract: Electric circuit for estimating the angular position of a rotor of an electric motor, including: a sensing module configured to receive at least one electric signal representative of a drive current of the electric motor and to generate a measurement signal indicative of a switching of the at least one electric signal and a switching index indicative of the type of switching, rising or falling, of the at least one electric signal; and a computing module configured to supply, from the measurement signal and switching index a position signal representative of an angular position of the electric motor rotor.

Abstract translation: 用于估计电动机的转子的角位置的电路​​，包括：感测模块，被配置为接收表示所述电动机的驱动电流的至少一个电信号，并产生指示所述电动机的转换的测量信号 至少一个电信号和指示所述至少一个电信号的切换，上升或下降的类型的开关指标; 以及计算模块，被配置为从所述测量信号和切换指数提供表示所述电动机转子的角位置的位置信号。

公开(公告)号：US10468948B2

公开(公告)日：2019-11-05

申请号：US15066802

申请日：2016-03-10

Applicant: STMicroelectronics S.R.L.

Inventor： Giuseppe D'angelo ,  Michele Bisogno ,  Virginia Clemente

IPC: H02P27/08 ,  H02P31/00 ,  H02K11/02 ,  H02M7/5395 ,  H03K4/06

Abstract: An electric motor is controlled by means of pulse-width modulated control signal having edge transitions occurring at certain transition count values of the pulses of a clock signal which is frequency-modulated with a step-wise frequency modulation (e.g., SSCG or Spread Spectrum Clock Generation). A frequency unmodulated clock signal is provided having a fixed period indicative of the period of the pulse-width modulated control signals. The transition count values are set as a function of a predicted count value and/or a predicted frequency value for the frequency-modulated clock signal. Prediction occurs as a function of the frequency unmodulated clock signal, so that the transition count values are compensated against the step-wise (e.g., SSCG) frequency modulation.

公开(公告)号：US09768717B2

公开(公告)日：2017-09-19

申请号：US14855726

申请日：2015-09-16

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giuseppe D'Angelo ,  Virginia Clemente ,  Michele Bisogno

IPC: H02P6/18 ,  H02P6/14 ,  H02P6/182 ,  H02P27/08

CPC classification number: H02P6/14 ,  H02P6/182 ,  H02P27/08

Abstract: A driver device for driving a DC motor using PWM modulated drive signals includes comparator circuits for producing digitalized Back-EMF signals having first and second values as a function of the Back-EMF signals being above or below a respective threshold, and an inverter for driving the PWM modulated drive signals in a phased relationship with the digitalized Back-EMF signals. The driver device also includes controller circuits configured for controlling the respective threshold by minimizing the error between a time measured between two consecutive opposed edges of the digitalized Back-EMF signal and half a time measured between two consecutive homologous edges of the digitalized Back-EMF signal.

公开(公告)号：US20170025929A1

公开(公告)日：2017-01-26

申请号：US15066802

申请日：2016-03-10

Applicant: STMicroelectronics S.R.L.

Inventor： Giuseppe D'angelo ,  Michele Bisogno ,  Virginia Clemente

IPC: H02K11/02 ,  H03K4/06 ,  H02P31/00

Abstract: An electric motor is controlled by means of pulse-width modulated control signal having edge transitions occurring at certain transition count values of the pulses of a clock signal which is frequency-modulated with a step-wise frequency modulation (e.g., SSCG or Spread Spectrum Clock Generation). A frequency unmodulated clock signal is provided having a fixed period indicative of the period of the pulse-width modulated control signals. The transition count values are set as a function of a predicted count value and/or a predicted frequency value for the frequency-modulated clock signal. Prediction occurs as a function of the frequency unmodulated clock signal, so that the transition count values are compensated against the step-wise (e.g., SSCG) frequency modulation.

Abstract translation: 电动机通过脉冲宽度调制控制信号进行控制，该脉冲宽度调制控制信号的边沿跃迁是以逐步频率调制（例如，SSCG或扩频时钟 代）。 提供频率未调制的时钟信号，其具有指示脉宽调制控制信号的周期的固定周期。 转换计数值被设置为调频时钟信号的预测计数值和/或预测频率值的函数。 作为频率未调制时钟信号的函数发生预测，使得转换计数值被逐级（例如，SSCG）频率调制补偿。

公开(公告)号：US20150022131A1

公开(公告)日：2015-01-22

申请号：US14310536

申请日：2014-06-20

Applicant: STMicroelectronics S.r.l.

Inventor： Giuseppe D'Angelo ,  Giovanni Moselli ,  Virginia Clemente

IPC: G01B7/00 ,  H02P6/18

CPC classification number: G01B7/003 ,  H02P6/18

Abstract: Electric circuit for estimating the angular position of a rotor of an electric motor, including: a sensing module configured to receive at least one electric signal representative of a drive current of the electric motor and to generate a measurement signal indicative of a switching of the at least one electric signal and a switching index indicative of the type of switching, rising or falling, of the at least one electric signal; and a computing module configured to supply, from the measurement signal and switching index a position signal representative of an angular position of the electric motor rotor.

Abstract translation: 用于估计电动机的转子的角位置的电路​​，包括：感测模块，被配置为接收表示所述电动机的驱动电流的至少一个电信号，并产生指示所述电动机的转换的测量信号 至少一个电信号和指示所述至少一个电信号的切换，上升或下降的类型的开关指标; 以及计算模块，被配置为从所述测量信号和切换指数提供表示所述电动机转子的角位置的位置信号。