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    Analog-to-digital and digital-to-analog converter, related integrated circuit, electronic system and method
    1.
    发明授权
    Analog-to-digital and digital-to-analog converter, related integrated circuit, electronic system and method 有权

    公开(公告)号：US10771075B2

    公开(公告)日：2020-09-08

    申请号：US16422416

    申请日：2019-05-24

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela La Rosa ,  Giovanni Sicurella

    IPC: H03M1/02 ,  H03M1/12 ,  H03M1/66

    Abstract: A converter circuit is used to selectively convert an analog input voltage into a digital output signal or a digital input signal into an analog output voltage as a function of a mode signal. The converter circuit includes a control circuit configured to generate a start-of-conversion signal. A ramp generator is configured to, when the mode signal indicates an analog-to-digital conversion, generate a timer stop signal after a time interval that is determined as a function of the value of the analog input voltage, thereby implementing an analog-to-time conversion. When the mode signal indicates a digital-to-analog conversion, ramp generator is configured to vary the ramp signal until a ramp stop signal is set and, in response to the ramp stop signal, determine the analog output voltage as a function of the ramp signal, thereby implementing a time-to-analog conversion.

    Converter circuit with injection of ripple current for comparison
    2.
    发明授权
    Converter circuit with injection of ripple current for comparison 有权

    公开(公告)号：US09729058B2

    公开(公告)日：2017-08-08

    申请号：US15157554

    申请日：2016-05-18

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela Larosa ,  Giovanni Sicurella ,  Giuseppe Platania

    IPC: H02M3/158 ,  H02M3/156 ,  H02M1/00

    CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M2001/0025

    Abstract: A boost-type converter circuit includes a pair of converter switches that are alternatively switchable on and off. An inductor is coupled to the intermediate point between the converter switches. A driver module controls switching on and off of the converter switches in respond to a comparator output signal. A reference signal line provides to the comparator a reference signal, and an output feedback line provides to the comparator an output feedback signal. These signals are compared to each other to generate the comparator output signal for controlling the driver module. A low-pass filter network is coupled to the inductor and configured to provide a ripple current which is a low-pass filtered replica of the current through the inductor. An injector circuit injects the ripple current into the reference signal line coupled to the comparator.

    Control device for a switching voltage regulator and control method
    5.
    发明授权
    Control device for a switching voltage regulator and control method 有权

    公开(公告)号：US12218594B2

    公开(公告)日：2025-02-04

    申请号：US16988379

    申请日：2020-08-07

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela La Rosa ,  Giovanni Sicurella

    IPC: H02M3/158 ,  G05F1/56

    Abstract: A control circuit and method, wherein an error signal is generated representative of a difference between an output voltage of a switching circuit and a nominal signal; a single control signal is generated, representative of an average error of the error signal; the single control signal is compared with a first periodic reference signal and a second periodic reference signal; a first pulse width modulated signal is generated by a Buck modulator; and a second pulse width modulated signal is generated by a Boost modulator. The maximum value of the first periodic reference signal and the minimum value of the second periodic reference signal are higher and lower, respectively, than the single control signal in a transient control mode between a Buck control mode and a Boost control mode.

    Electronic fuse circuit, corresponding device and method
    6.
    发明授权
    Electronic fuse circuit, corresponding device and method 有权

    公开(公告)号：US11171478B2

    公开(公告)日：2021-11-09

    申请号：US16882618

    申请日：2020-05-25

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela La Rosa ,  Giovanni Sicurella

    IPC: H02H3/20 ,  H02H3/02 ,  H02H1/00 ,  H02H9/04 ,  H02H9/00 ,  H02H9/02 ,  H02H3/38

    Abstract: A power stage in an electronic fuse circuit is driven by controller. The controller includes a first comparator set for output voltage control and a second comparator set for output current control. Each comparator set includes at least one comparator having a reference input, a feedback input, and one or more outputs. A driver circuit includes output terminals for driving the power stage. The driver circuit includes a switch that is selectively activated in response to outputs from the first and second comparator sets to clamp the voltage across the output terminals of the driver circuit. The clamp operation is made in response to feedback input to either of the first and second comparator sets having exceeded a certain reference.

    Electronic fuse circuit, corresponding device and method
    7.
    发明授权
    Electronic fuse circuit, corresponding device and method 有权

    公开(公告)号：US10666039B2

    公开(公告)日：2020-05-26

    申请号：US15452944

    申请日：2017-03-08

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela La Rosa ,  Giovanni Sicurella

    IPC: H02H3/20 ,  H02H3/02 ,  H02H1/00 ,  H02H9/04 ,  H02H3/38 ,  H02H9/00 ,  H02H9/02

    Abstract: A power stage in an electronic fuse circuit is driven by controller. The controller includes a first comparator set for output voltage control and a second comparator set for output current control. Each comparator set includes at least one comparator having a reference input, a feedback input, and one or more outputs. A driver circuit includes output terminals for driving the power stage. The driver circuit includes a switch that is selectively activated in response to outputs from the first and second comparator sets to clamp the voltage across the output terminals of the driver circuit. The clamp operation is made in response to feedback input to either of the first and second comparator sets having exceeded a certain reference.

    Analog-to-Digital and Digital-to-Analog Converter, Related Integrated Circuit, Electronic System and Method
    8.
    发明申请
    Analog-to-Digital and Digital-to-Analog Converter, Related Integrated Circuit, Electronic System and Method 审中-公开

    公开(公告)号：US20190372579A1

    公开(公告)日：2019-12-05

    申请号：US16422416

    申请日：2019-05-24

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela La Rosa ,  Giovanni Sicurella

    IPC: H03M1/02 ,  H03M1/12 ,  H03M1/66

    Abstract: A converter circuit is used to selectively convert an analog input voltage into a digital output signal or a digital input signal into an analog output voltage as a function of a mode signal. The converter circuit includes a control circuit configured to generate a start-of-conversion signal. A ramp generator is configured to, when the mode signal indicates an analog-to-digital conversion, generate a timer stop signal after a time interval that is determined as a function of the value of the analog input voltage, thereby implementing an analog-to-time conversion. When the mode signal indicates a digital-to-analog conversion, ramp generator is configured to vary the ramp signal until a ramp stop signal is set and, in response to the ramp stop signal, determine the analog output voltage as a function of the ramp signal, thereby implementing a time-to-analog conversion.

    AN ELECTRONIC FUSE CIRCUIT, CORRESPONDING DEVICE AND METHOD
    9.
    发明申请
    AN ELECTRONIC FUSE CIRCUIT, CORRESPONDING DEVICE AND METHOD 审中-公开

    公开(公告)号：US20180062376A1

    公开(公告)日：2018-03-01

    申请号：US15452944

    申请日：2017-03-08

    Applicant: STMicroelectronics S.r.l.

    Inventor： Manuela La Rosa ,  Giovanni Sicurella

    IPC: H02H3/20 ,  H02H3/02 ,  H02H1/00

    CPC classification number: H02H3/20 ,  H02H1/0007 ,  H02H3/021 ,  H02H3/38 ,  H02H9/001 ,  H02H9/02 ,  H02H9/041 ,  H02H9/043

    Abstract: A power stage in an electronic fuse circuit is driven by controller. The controller includes a first comparator set for output voltage control and a second comparator set for output current control. Each comparator set includes at least one comparator having a reference input, a feedback input, and one or more outputs. A driver circuit includes output terminals for driving the power stage. The driver circuit includes a switch that is selectively activated in response to outputs from the first and second comparator sets to clamp the voltage across the output terminals of the driver circuit. The clamp operation is made in response to feedback input to either of the first and second comparator sets having exceeded a certain reference.

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