公开(公告)号：US11296910B2

公开(公告)日：2022-04-05

申请号：US16800733

申请日：2020-02-25

Applicant: STMicroelectronics S.r.l.

Inventor： Domenico Massimo Porto ,  Giovanni Luca Torrisi ,  Ignazio Testoni

IPC: H04L25/03 ,  H04B17/345 ,  H03M1/12 ,  H04L12/40

Abstract: A method of compensating electromagnetic emissions of a device for use in a communication bus, the method including: transmitting a test signal over the communication bus; receiving, at the device, the test signal after propagation over the communication bus; performing frequency analysis processing of the test signal received to detect a set of harmonic components of the test signal received having an amplitude exceeding a certain threshold; storing respective values of frequency of harmonic components in the set of harmonic components having an amplitude exceeding the certain threshold; and generating and transmitting over the communication bus a set of compensation signals, each compensation signal in the set of compensation signals being a sinusoidal signal having a respective frequency equal to one of the frequencies stored, and being in anti-phase with respect to the harmonic component of the test signal received having the respective frequency.

公开(公告)号：US11211783B2

公开(公告)日：2021-12-28

申请号：US16587346

申请日：2019-09-30

Applicant: STMicroelectronics S.r.l.

Inventor： Giovanni Luca Torrisi ,  Salvatore Abbisso ,  Cristiano Meroni

IPC: H02H5/04 ,  G08B21/18 ,  H02H1/00 ,  H03K19/003

Abstract: A circuit includes processing circuitry is sensitive to a regulated voltage at the output node and to a temperature of the circuit. The processing circuit is configured to provide voltage and temperature sensing signals indicative of the regulated voltage at the output node and the temperature of the circuit. The processing circuitry is configured to assume i) a first state, as a result of the voltage sensing signal reaching a voltage threshold, ii) a second state, as a result of the temperature detection signal reaching a temperature threshold, or iii) a third state, as a result of both the voltage and the temperature sensing signals failing to reach the thresholds. The circuit comprises a warning output coupled to a warning signal generation network controlled by the processing circuitry.

公开(公告)号：US10924100B2

公开(公告)日：2021-02-16

申请号：US16849020

申请日：2020-04-15

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

Inventor： Giovanni Luca Torrisi ,  Domenico Porto ,  Christophe Roussel

IPC: H03K17/00 ,  H02P7/03

Abstract: An H-bridge circuit includes a supply voltage node, a first pair of transistors and a second pair of transistors. First transistors in each pair have the current paths therethrough included in current flow lines between the supply node and, respectively, a first output node and a second output node. Second transistors in each pair have the current paths therethrough coupled to a third output node and a fourth output node, respectively. The first and third output nodes are mutually isolated from each other and the second and fourth output nodes are mutually isolated from each other. The H-bridge circuit is operable in a selected one of a first, second and third mode.

公开(公告)号：US10588247B2

公开(公告)日：2020-03-10

申请号：US15797889

申请日：2017-10-30

Applicant: STMicroelectronics S.r.l.

Inventor： Giovanni Luca Torrisi ,  Domenico Porto

IPC: H05K7/20 ,  G06F1/3287 ,  G06F1/3206 ,  G06F1/20 ,  G06F1/30 ,  G06F1/3234

Abstract: An embodiment circuit includes a plurality of heat-generating circuits, a heat-sensitive circuit exposed to heat generated during operation of the plurality of heat-generating circuit, and a temperature sensor disposed at a location between the heat-sensitive circuit and the plurality of heat-generating circuits, the temperature sensor being configured to generate an over-temperature signal as a function of temperature sensed at the location. The plurality of heat-generating circuits may be selectively deactivatable in an ordered sequence based on deactivation weights respectively assigned to the plurality of heat-generating circuits and in response to the over-temperature signal.

公开(公告)号：US10375774B2

公开(公告)日：2019-08-06

申请号：US15216561

申请日：2016-07-21

Applicant: STMicroelectronics S.r.l ,  STMicroelectronics Application GMBH

Inventor： Manuel Gaertner ,  Sergio Lecce ,  Giovanni Luca Torrisi

IPC: H05B33/08 ,  B60Q1/14

Abstract: An integrated device for driving a lighting load, such as a LED, has a first memory element, configured to store a nominal duty-cycle at a nominal supply voltage. An actual voltage acquisition element is configured to detect an actual supply voltage. A processing unit is coupled to the first memory element and to the actual voltage acquisition element and configured to calculate a voltage compensated duty-cycle. A driver unit is coupled to the processing unit and is configured to be supplied according to the voltage compensated duty-cycle.

公开(公告)号：US09992916B2

公开(公告)日：2018-06-05

申请号：US14595391

申请日：2015-01-13

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS APPLICATION GMBH

Inventor： Giovanni Luca Torrisi ,  Domenico Massimo Porto ,  Sergio Lecce ,  Manuel Gaertner

IPC: H01H35/00 ,  H01H35/14 ,  H01H37/00 ,  H01H47/24 ,  H01H47/26 ,  H05K7/20 ,  H01L23/34 ,  H03K17/08

CPC classification number: H05K7/20945 ,  H01L23/34 ,  H01L2924/0002 ,  H03K2017/0806 ,  Y10T307/773 ,  H01L2924/00

Abstract: A thermal control process for an electronic power device including a multi-junction integrated circuit may include defining a first and at least one second groups of junctions, with each group including one first and at least one second junctions, and associating a thermal detector with each group. A first group control may be executed which detects group electric signals representative of the temperature detected by the thermal detectors, processes the group electric signals with reference to a group critical thermal event, identifies a critical group when the corresponding group electric signal detects the critical group thermal event, and generates group deactivating signals suitable for selectively deactivating the first and the at least one second junctions of the identified critical group with respect to the remaining junctions of the integrated circuit.

公开(公告)号：US09436193B2

公开(公告)日：2016-09-06

申请号：US14138402

申请日：2013-12-23

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giovanni Luca Torrisi ,  Domenico Massimo Porto ,  Vanni Poletto

IPC: G05F1/46 ,  H02H1/04 ,  H02H9/00 ,  H02H3/02 ,  H02H9/02

CPC classification number: G05F1/462 ,  H02H1/043 ,  H02H3/025 ,  H02H9/002 ,  H02H9/025

Abstract: A driver for an electric load includes a power device having a control terminal and an output terminal for an output current, and a control module. The control module is configured to drive the power device in an auto-recovery mode by switching between activation and deactivation in the occurrence of an overcurrent condition, wherein the output current reaches a threshold current. The control module is also configured to evaluate a first time interval between a time wherein the overcurrent condition occurs, and a first time, and generate a limit signal when the time interval is equal to a time threshold. The power device is driven in a switching-off condition at least as a function of the limit signal.

Abstract translation: 用于电负载的驱动器包括具有控制端子和用于输出电流的输出端子的功率器件和控制模块。 控制模块被配置为通过在发生过电流状况的激活和停用之间切换来以自动恢复模式驱动电力设备，其中输出电流达到阈值电流。 控制模块还被配置为评估发生过电流状况的时间与第一次之间的第一时间间隔，并且当时间间隔等于时间阈值时产生限制信号。 功率器件至少作为限制信号的函数在关断状态下被驱动。

公开(公告)号：US09130366B2

公开(公告)日：2015-09-08

申请号：US13901460

申请日：2013-05-23

Applicant: STMicroelectronics S.r.l.

Inventor： Calogero Andrea Trecarichi ,  Giovanni Luca Torrisi ,  Donato Tagliavia

IPC: H02H9/04 ,  F02P3/05 ,  F02P3/055 ,  F02P9/00 ,  H03K17/16 ,  F02D41/14 ,  F02D41/00

CPC classification number: H02H9/041 ,  F02D41/00 ,  F02D41/1479 ,  F02P3/051 ,  F02P3/055 ,  F02P9/002 ,  H03K17/166 ,  H03K17/168

Abstract: An electronic system to discharge a transformer in case of a failure during a charging phase of the transformer. The system includes the transformer having a primary winding with a first terminal connected to a battery voltage and with a second terminal for generating a primary voltage signal, includes a switch serially connected to the primary winding and having a control terminal carrying a control voltage signal for opening or closing the switch and includes an electronic circuit. The electronic circuit further includes a current generator and a voltage clamping.

Abstract translation: 一种在变压器充电阶段发生故障时对变压器进行放电的电子系统。 该系统包括具有初级绕组的变压器，第一端子连接到电池电压，并且具有用于产生初级电压信号的第二端子，包括串联连接到初级绕组的开关，并且具有控制端子，该控制端子承载用于 打开或关闭开关并且包括电子电路。 电子电路还包括电流发生器和电压钳位。