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    Device for measuring the current flowing in an inductive load
    14.
    发明授权
    Device for measuring the current flowing in an inductive load 有权

    公开(公告)号：US10444264B2

    公开(公告)日：2019-10-15

    申请号：US16262521

    申请日：2019-01-30

    Applicant: STMICROELECTRONICS S.R.L.

    Inventor： Vanni Poletto ,  Riccardo Miglierina ,  Antonio Davide Leone ,  Sergio Lecce

    IPC: G01R19/165 ,  G01R31/34 ,  H03F3/45 ,  G11C27/02

    Abstract: A device measures the current in an inductive load using two separate current-measuring paths to detect the current in the inductive load. The inductive load is connected between first and second nodes, and the first node connected to a first voltage. The device includes first and second transistors cascaded together between the first node and a third node that is connected to a second voltage. First and second sense amplifiers measure the current in the inductive load. The first and second sense amplifiers are connected to at least one terminal of the first and second transistors. Two blocks sample and hold signals from the first and second sense amplifiers, which represent, respectively, the currents in the two separate current-measuring paths. The two currents are subtracted in a comparison node for generating an error signal that is compared with a predefined window and if outside the window a failure signal is generated.

    Driver circuit, corresponding device and method
    15.
    发明授权
    Driver circuit, corresponding device and method 有权

    公开(公告)号：US10374603B2

    公开(公告)日：2019-08-06

    申请号：US15898931

    申请日：2018-02-19

    Applicant: STMicroelectronics S.r.l.

    Inventor： Daniele Zella ,  Vanni Poletto ,  Mauro Foppiani

    IPC: H03K3/00 ,  H03K17/687 ,  G05F3/26 ,  H03K17/60

    Abstract: In one embodiment, a (pre)driver circuit includes first and a second output terminal for driving an electronic switch that includes a control terminal and a current path through the switch. The arrangement can operate in one or more first driving configurations (e.g., for PMOS), with the first and second output terminals are coupled to the current path and the control electrode of the electronic switch, respectively, and one or more second driving configurations (e.g., for NMOS, both HS and LS), wherein the first and second output terminals of the driver circuit are coupled to the control electrode and the current path of the electronic switch, respectively.

    Ringing peak detector module for an inductive electric load driver, related system and integrated circuit
    16.
    发明授权
    Ringing peak detector module for an inductive electric load driver, related system and integrated circuit 有权

    公开(公告)号：US10009018B1

    公开(公告)日：2018-06-26

    申请号：US15634616

    申请日：2017-06-27

    Applicant: STMicroelectronics S.r.l.

    Inventor： Vanni Poletto ,  Andrea Maino

    IPC: H02P6/06 ,  H03K5/1532 ,  H03K7/08 ,  H02P27/08

    Abstract: A ringing peak detector module detects a ringing at the output of an inductive load driver including a bridge circuit containing high side and low side switches. A ringing peak detector receives differential feedback signals representative of the drain-source voltage of the low-side switch and detects a ringing peak of an oscillation of a current/voltage on the inductive load. A module compares said detected ringing peak with a maximum value and controls said driver by an error signal calculated as a function of the difference between said peak value and maximum value. The ringing peak detector module includes an input buffer module upstream of said peak detector circuit that shifts the differential feedback signals so a common mode of these signals is centered at a half-dynamic level of a supply voltage to provide correspondingly shifted voltages forming a shifted differential output corresponding to a steady state of the differential feedback signals.

    RESISTIVE-SENSOR INTERFACE
    18.
    发明申请
    RESISTIVE-SENSOR INTERFACE 审中-公开

    公开(公告)号：US20170227586A1

    公开(公告)日：2017-08-10

    申请号：US15261126

    申请日：2016-09-09

    Applicant: STMicroelectronics S.r.l.

    Inventor： Vanni Poletto ,  Nicola Rogledi

    IPC: G01R27/14 ,  H03M3/00

    CPC classification number: G01R27/14 ,  H03M3/458

    Abstract: A device to read a variable resistor has an analog to digital converter (ADC), a first switch and a second switch. The ADC has a first ADC input, a second ADC input and an ADC output. The first switch selectively couples a first voltage indicative of a voltage across a first resistance to the first ADC input. The second switch selectively couples a second voltage indicative of a voltage across a second resistance to the second ADC input. The ADC outputs a signal indicative of a value of the second resistance.

    Driver device for transistors, and corresponding integrated circuit
    19.
    发明授权
    Driver device for transistors, and corresponding integrated circuit 有权
    晶体管驱动器件及相应的集成电路

    公开(公告)号：US09595947B2

    公开(公告)日：2017-03-14

    申请号：US14797571

    申请日：2015-07-13

    Applicant: STMICROELECTRONICS S.r.l.

    Inventor： Vanni Poletto ,  Patrizia Milazzo ,  Sergio Lecce

    IPC: H03K5/04 ,  H03K17/041 ,  H03K19/003 ,  H03K19/0175 ,  H03K17/042 ,  H03K17/16

    CPC classification number: H03K5/04 ,  H03K17/04106 ,  H03K17/04206 ,  H03K17/166 ,  H03K19/00323 ,  H03K19/0175

    Abstract: A driver device is for switching on and off a transistor for supplying a load by driving a control electrode of the transistor. The driver device includes a first terminal connected to the control electrode of the transistor, a second terminal connected between the transistor and the load, and a current-discharge path coupled to the first terminal. The current-discharge path includes a diode and is activated when the transistor is switched off. The diode becomes non-conductive to interrupt the current-discharge path when the voltage on the second terminal reaches a threshold value.

    Abstract translation: 驱动器件用于通过驱动晶体管的控制电极来接通和关断用于提供负载的晶体管。 驱动器件包括连接到晶体管的控制电极的第一端子，连接在晶体管和负载之间的第二端子以及耦合到第一端子的电流 - 放电路径。 电流放电路径包括二极管，并且当晶体管关断时被激活。 当第二端子上的电压达到阈值时，二极管变得不导通以中断电流 - 放电路径。

    Analog-to-digital conversion loop for PS15 and WSS systems
    20.
    发明授权
    Analog-to-digital conversion loop for PS15 and WSS systems 有权
    用于PS15和WSS系统的模数转换回路

    公开(公告)号：US08872682B2

    公开(公告)日：2014-10-28

    申请号：US13926455

    申请日：2013-06-25

    Applicant: STMicroelectronics S.r.l

    Inventor： Vanni Poletto ,  Carlo Antonini ,  Salvatore Cannavacciuolo

    IPC: H03M1/00 ,  H03M1/12 ,  H03M3/04 ,  H03M1/48

    CPC classification number: H03M1/12 ,  H03M1/1235 ,  H03M1/48 ,  H03M3/04

    Abstract: An analog-to-digital conversion loop adapted to generate a digital output signal corresponding to a low-pass filtered replica of an analog input signal, including an analog adder configured to receive the input analog signal and an analog feedback signal, adapted to generate an analog error signal corresponding to the difference between the analog input signal and the analog feedback signal; an analog-to-digital converter having a nonlinear input-output conversion characteristic defining a larger quantization step the more the input to be converted differs from a null value, configured to receive the analog error signal and to generate a corresponding digital error signal a digital integrator configured to receive the digital error signal, configured to generate the digital output signal corresponding to the time integration of the digital error signal; a digital-to-analog converter, configured to receive the digital output signal and to generate the analog feedback signal as analog replica of the digital output signal.

    Abstract translation: 一种适于产生对应于模拟输入信号的低通滤波复制品的数字输出信号的模拟 - 数字转换回路，包括配置成接收输入模拟信号的模拟加法器和模拟反馈信号，该模拟加法器适于产生 模拟误差信号对应于模拟输入信号和模拟反馈信号之间的差异; 具有定义较大量化步长的非线性输入 - 输出转换特性的模数转换器，被转换的输入越多与空值不同，被配置为接收模拟误差信号并产生相应的数字误差信号，数字 积分器，被配置为接收数字误差信号，被配置为产生对应于数字误差信号的时间积分的数字输出信号; 数模转换器，配置成接收数字输出信号并产生模拟反馈信号作为数字输出信号的模拟副本。

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