公开(公告)号：US20200266623A1

公开(公告)日：2020-08-20

申请号：US16790888

申请日：2020-02-14

Applicant: STMicroelectronics S.r.l.

Inventor： Romeo LETOR

IPC: H02H9/02 ,  H02H1/00

Abstract: A protection circuit for an automotive wiring harness includes an input node receiving a sensing signal indicating intensity of current in a conductor, an output node emitting a current control output signal to reduce the current and/or emitting a warning signal indicating the current intensity having reached a limit value. Signal processing circuitry coupled to the input node compares the current intensity with a reference value, and produces a comparison signal indicating whether the current intensity exceeds the reference value. A counting circuitry driven by the comparison signal counts in a first count direction as a result of the comparison signal indicating that the current intensity exceeds the reference value. Latching circuitry coupled to the counter circuitry generates the output signal at the output node as a result of the count value of the counter circuitry reaching a limit value.

公开(公告)号：US20220214430A1

公开(公告)日：2022-07-07

申请号：US17568317

申请日：2022-01-04

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics (Rousset) SAS ,  STMicroelectronics Application GmbH

Inventor： Romeo LETOR ,  Roberto TIZIANI ,  Alfio RUSSO ,  Antoine PAVLIN ,  Nadia LECCI ,  Manuel GAERTNER

IPC: G01S7/484 ,  G01S7/481

Abstract: An electronic module for generating light pulses includes an electronic card or interposer, a LASER-diode lighting module, and a LASER-diode driver module. The interposer has an edge recess in which the lighting module is completely inserted. The driver module is arranged on top of the interposer and the lighting module. The electrical connections for driving the LASER diodes are obtained without resorting to wire bonding in order to reduce the parasitic inductances.

公开(公告)号：US20220013982A1

公开(公告)日：2022-01-13

申请号：US17368554

申请日：2021-07-06

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics (Rousset) SAS

Inventor： Antonio Filippo Massimo PIZZARDI ,  Santo Alessandro SMERZI ,  Ferdinando IUCOLANO ,  Romeo LETOR

IPC: H01S5/042 ,  G01S7/481 ,  G01S7/484 ,  H01S5/40

Abstract: An electronic device is couplable to a plurality of laser diodes and includes a control switch having a drain coupled to a drain metallization and having a source coupled to a first source metallization that is electrically couplable to cathodes of the laser diodes. Each of a plurality of first switches has a drain coupled to the drain metallization and a source coupled to a respective second source metallization that is couplable to an anode of the laser diodes. The second source metallizations are aligned with one another in a direction of alignment, overlie, in a direction orthogonal to the direction of alignment, the respective sources of the first switches, and can be aligned, in a direction orthogonal to the direction of alignment, to the respective laser diodes. At least one of the sources of the first switches can be aligned, in a direction orthogonal to the direction of alignment, to the respective laser diode.

公开(公告)号：US20230187922A1

公开(公告)日：2023-06-15

申请号：US18064861

申请日：2022-12-12

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS (ROUSSET) SAS

Inventor： Vincenzo RANDAZZO ,  Alberto MARZO ,  Giovanni SUSINNA ,  Vanni POLETTO ,  Antoine PAVLIN ,  CalogeroAndrea TRECARICHI ,  Mirko DONDINI ,  Roberto CRISAFULLI ,  Enrico CASTRO ,  Romeo LETOR

IPC: H02H3/08 ,  H02H1/00 ,  H03K17/687 ,  H03K19/20

CPC classification number: H02H3/08 ,  H02H1/0007 ,  H03K17/687 ,  H03K19/20

Abstract: Embodiments are directed to electronic fuse devices and systems. One such electronic fuse includes current sensing circuitry that senses a current in a conductor coupled between a power supply and a load, and generates a current sensing signal indicative of the sensed current. I2t circuitry receives the current sensing signal and determines whether the sensed current exceeds an I2t curve of the conductor. The electronic fuse further includes at least one of external MOSFET temperature sensing circuitry that senses a temperature of an external MOSFET coupled to the conductor, low current bypass circuitry that supplies a reduced current to the load in a low power consumption mode during which the external MOSFET is in a non-conductive state, or desaturation sensing circuitry that senses a drain-source voltage of the external MOSFET.

公开(公告)号：US20210210953A1

公开(公告)日：2021-07-08

申请号：US17209662

申请日：2021-03-23

Applicant: STMicroelectronics S.r.l.

Inventor： Romeo LETOR

IPC: H02H9/02 ,  H02H1/00

Abstract: Described herein is a method including measuring a current in a wire, normalizing the measured current, and comparing the normalized measured current to a control curve. The control curve is a function of a series of normalized current magnitudes and reaction times for corresponding ones of that series of normalized current magnitudes. The method further includes limiting the current in the wire based upon the comparison. The reaction times for ones of the series of normalized current magnitudes are times at which current limitation would occur if the normalized current remained at an associated normalized current magnitude.