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公开(公告)号：EP3916730A1
公开(公告)日：2021-12-01
申请号：EP21175167.2
申请日：2021-05-21
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (ALPS) SAS
Inventor： SIRITO-OLIVIER, Philippe , TORRISI, Giovanni Luca
Abstract: The present disclosure relates to a method for writing into a one-time programmable memory (216) of an integrated circuit (200), the method comprising:
- attempting, by a memory control circuit (306) of the integrated circuit (200), to write data in at least one first register of the one-time programmable memory (216);
- verifying, by the memory control circuit (306), whether the data has been correctly written in the at least one first register; and
- in case the data has not been correctly written in the at least one first register, attempting, by the memory control circuit (306), to write the data in at least one second register of the one-time programmable memory (216).-
公开(公告)号：EP4064794A3
公开(公告)日：2023-01-18
申请号：EP22305278.8
申请日：2022-03-11
Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS , STMicroelectronics S.r.l. , STMicroelectronics Application GmbH
Inventor： GAERTNER, Manuel , SIRITO-OLIVIER, Philippe , TORRISI, Giovanni Luca , URBITSCH, Thomas , ROUSSEL, Christophe , BURKHARDT, Fritz
IPC: H05B45/37 , H05B45/325 , H05B45/10 , H05B45/46 , H05B45/52 , H05B47/25 , H02M3/335 , B60Q11/00 , B60Q1/14
Abstract: A system (100') comprises a microcontroller unit (102) and a driver device (101) coupled (105) to the microcontroller unit (102) to receive data therefrom. The driver device (101) comprises a plurality of output supply pins (101C 1 , ..., 101C n ) and is configured to selectively propagate (30 1 , ..., 30 n ) a supply voltage ( V BAT ) to the output supply pins (101C 1 , ..., 101C n ) to provide respective pulse-width modulated supply signals ( V BAT,1 , ..., V BAT,n ) at the output supply pins (101C 1 , ..., 101C n ). The driver device (101) is configured to compute respective duty-cycle values of the pulse-width modulated supply signals ( V BAT,1 , ..., V BAT,n ) as a function of the data received from the microcontroller unit (102) . The system further comprises a plurality of lighting devices (31 1,1 , ..., 31 1,m , 31 n ) coupled to the plurality of output supply pins (101C 1 , ..., 101C n ). The plurality of lighting devices (31 1,1 , ..., 31 1,m , 31 n ) comprises at least one subset of lighting devices (31 1,1 , ..., 31 1,m ) coupled to a same output supply pin (101C 1 ) in the plurality of output supply pins (101C 1 , ..., 101C n ). The system further comprises a set of respective electronic switches coupled in series to the lighting devices in the at least one subset of lighting devices (31 1,1 , ..., 31 1,m ). The microcontroller unit (102) is configured to individually control the electronic switches via respective control signals ( P 1,1 , ..., P 1,m ) to individually adjust a brightness of the lighting devices in the at least one subset of lighting devices (31 1,1 , ..., 31 1,m ).
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公开(公告)号：EP3726723A1
公开(公告)日：2020-10-21
申请号：EP20305284.0
申请日：2020-03-19
Applicant: STMicroelectronics (ALPS) SAS , STMicroelectronics S.r.l.
IPC: H02P7/03
Abstract: A method, comprising:
- a) providing a H-bridge circuit including a supply node configured to be coupled to a supply voltage (VDD) as well as a first pair of transistors (QH1, QL1) and a second pair of transistors (QH2, QL2), each pair of transistors including a first transistor (QH1; QH2) and a second transistor (QL1; QL2), wherein:
- the first transistors (QH1; QH2) in the two pairs of transistors (QH1, QL1; QH2, QL2) have the current paths therethrough included in respective current flow lines between the supply node (VDD) and a first output node (EH1) and between the supply node (VDD) and a second output node (EH2), respectively, and
- the second transistors (QL1; QL2) in the two pairs of transistors (QH1, QL1; QH2, QL2) have the current paths therethrough coupled to a third output node (EL1) and a fourth output node (EL2), respectively, the first output node (EH1) and the third output node (EL1) mutually isolated from each other and the second output node (EH2) and the fourth output node (EL2) mutually isolated from each other,
b) operating the H-bridge circuit in a selected one of a plurality of modes, the plurality of modes comprising a first, a second and a third mode.-
公开(公告)号：EP4376388A1
公开(公告)日：2024-05-29
申请号：EP23306929.3
申请日：2023-11-09
Applicant: STMicroelectronics (ALPS) SAS , STMicroelectronics Application GmbH , STMicroelectronics S.r.l.
Inventor： RENNIG, Fred , TORRISI, Giovanni Luca , GAERTNER, Manuel , SIRITO-OLIVIER, Philippe , BURKHARDT, Fritz , OCCHIPINTI, Aldo
CPC classification number: H04L2012/4021520130101 , H04L2012/4027320130101 , B60R16/023 , H04L12/12 , H04L12/40039
Abstract: In a vehicle communication network, a plurality of electronic control units (44'), ECUs, are arranged in groups. The ECUs pertaining to a same group are coupled to each other via a respective dedicated communication bus (59) operated according to a CAN protocol. A respective local controller (40') including a microcontroller unit (50) is coupled to each group of ECUs (44') via the respective dedicated communication bus (59) to exchange CAN frames therewith. A central controller is coupled to the local controllers (40') via a vehicle communication bus. Electrical loads (402-406) are coupled to the ECUs (44') to receive actuation signals therefrom and/or provide feedback signals thereto. Each microcontroller unit (50) of the local controllers (40') is configured as communication commander device to transmit and receive CAN frames via the respective dedicated communication bus (59). Each of the ECUs (44') includes a respective logic circuit (48') configured as communication responder device. In response to a CAN frame being received from the respective local controller (40'), the logic circuit (48') decodes the received CAN frame to produce the actuation signal for a respective electrical load (402-406). In response to a feedback signal being received from the respective electrical load (402-406), the logic circuit (48') transmits a CAN wake-up frame to the respective local controller (40') and encodes the feedback signal into a CAN frame for transmission to the respective local controller (40').
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Patent Agency Ranking
公开(公告)号：EP3706333A1
公开(公告)日：2020-09-09
申请号：EP20160868.4
申请日：2020-03-04
Applicant: STMicroelectronics S.r.l.
Abstract: A method of compensating electromagnetic emissions of a device (D) for use in a CAN bus (B) is described. The device (D) comprises a CAN transceiver (300) coupling the device (D) to said CAN bus (B) for transmitting and receiving signals. The method comprises:
- transmitting a test signal (TS1) over the CAN bus (B),
- receiving, at the device (D), said test signal after propagation over the CAN bus (B),
- performing frequency analysis processing (OSC2, 304, 306) of the test signal received to detect a set of harmonic components of the test signal received having an amplitude exceeding a certain threshold (V OEM,th ),
- storing (316) respective values of frequency of harmonic components in said set of harmonic components having an amplitude exceeding said certain threshold (V OEM,th ), and
- generating and transmitting over the CAN bus (B) 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 said respective frequency.-
公开(公告)号：EP3637571A1
公开(公告)日：2020-04-15
申请号：EP19198276.8
申请日：2019-09-19
Applicant: STMicroelectronics S.r.l.
Inventor： TORRISI, Giovanni Luca , ABBISSO, Salvatore , MERONI, Cristiano
Abstract: A circuit (10), such as a voltage regulator, comprises an output node (Vo) configured to supply a regulated voltage signal to a supplied load (MCU). The circuit comprises processing circuitry such as a state machine (12) sensitive to the regulated voltage at the output node (Vo) and to a temperature (T) of the circuit (10). The processing circuit is configured to provide voltage and temperature sensing signals indicative of the regulated voltage at the output node (Vo) and the temperature (T) of the circuit (10) and 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 (T) reaching a temperature threshold,
- iii) a third state, as a result of both the voltage and the temperature sensing signals failing to reach said thresholds.
The circuit (10) comprises a warning output (A_TW) configured to be driven in a first, second and third drive mode as a result of the processing circuitry (12) being in the first, second and third state, respectively.-
7.发明公开
公开(公告)号：EP4345464A1
公开(公告)日：2024-04-03
申请号：EP23196500.5
申请日：2023-09-11
Applicant: STMicroelectronics S.r.l.
Abstract: Described herein is a method for sensing at a pre-driving stage (12) driving one or more Field Effect Transistor (MHx, MLx), in particular MOSFET, comprised in a power stage (13) driving a load (DC1...DC4), a current flowing in said Field Effect Transistor (MHx, MLx), in particular MOSFET, the Field Effect Transistor being arranged external with respect to a chip on which said pre-driving stage (12) is arranged,
said method comprising
measuring (120) a drain to source voltage (VDS_HSx, VDS_LSx), of said one or more Field Effect Transistor (MHX, MLx),
measuring (130) an operating temperature (T W ) of said one or more Field Effect Transistor (MHX, MLx),
measuring (140) a current (IHX, ILx) flowing in said one or more Field Effect Transistor (MHX, MLx) by
calculating (142) the respective on drain to source resistance at the operating temperature (RdsONx(T W )) as a function (RdsONx(T W )) of said measured operating temperature (T W ) and by obtaining (144) said current (IHX, ILx) as the ratio of the respective measured drain to source voltage (VDS_HSx, VDS_LSx) over said calculated drain to source resistance at the operating temperature (RdsONx(T W )).-
公开(公告)号：EP4064794A2
公开(公告)日：2022-09-28
申请号：EP22305278.8
申请日：2022-03-11
Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS , STMicroelectronics S.r.l. , STMicroelectronics Application GmbH
Inventor： GAERTNER, Manuel , SIRITO-OLIVIER, Philippe , TORRISI, Giovanni Luca , URBITSCH, Thomas , ROUSSEL, Christophe , BURKHARDT, Fritz
IPC: H05B45/37 , H05B45/325 , H05B45/10 , H05B45/46 , H05B45/52 , H05B47/25 , H02M3/335 , B60Q11/00 , B60Q1/14
Abstract: A system (100') comprises a microcontroller unit (102) and a driver device (101) coupled (105) to the microcontroller unit (102) to receive data therefrom. The driver device (101) comprises a plurality of output supply pins (101C 1 , ..., 101C n ) and is configured to selectively propagate (30 1 , ..., 30 n ) a supply voltage ( V BAT ) to the output supply pins (101C 1 , ..., 101C n ) to provide respective pulse-width modulated supply signals ( V BAT,1 , ..., V BAT,n ) at the output supply pins (101C 1 , ..., 101C n ). The driver device (101) is configured to compute respective duty-cycle values of the pulse-width modulated supply signals ( V BAT,1 , ..., V BAT,n ) as a function of the data received from the microcontroller unit (102) . The system further comprises a plurality of lighting devices (31 1,1 , ..., 31 1,m , 31 n ) coupled to the plurality of output supply pins (101C 1 , ..., 101C n ). The plurality of lighting devices (31 1,1 , ..., 31 1,m , 31 n ) comprises at least one subset of lighting devices (31 1,1 , ..., 31 1,m ) coupled to a same output supply pin (101C 1 ) in the plurality of output supply pins (101C 1 , ..., 101C n ). The system further comprises a set of respective electronic switches coupled in series to the lighting devices in the at least one subset of lighting devices (31 1,1 , ..., 31 1,m ). The microcontroller unit (102) is configured to individually control the electronic switches via respective control signals ( P 1,1 , ..., P 1,m ) to individually adjust a brightness of the lighting devices in the at least one subset of lighting devices (31 1,1 , ..., 31 1,m ).
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公开(公告)号：EP3531228A1
公开(公告)日：2019-08-28
申请号：EP19159837.4
申请日：2019-02-27
Inventor： POLETTO, Vanni , SWANSON, David F , TORRISI, Giovanni Luca , CHEVALIER, Laurent
Abstract: L'invention concerne un circuit de commande d'au moins deux ensembles (16A, 16B, 16C) de transistors comprenant chacun un premier transistor (1A, 1B, 1C) et un deuxième transistor (2A, 2B, 2C) reliés en série entre des première (15) et deuxième (17) bornes d'alimentation, le courant du point milieu (IoutA, IoutB, IoutC) de chaque ensemble de transistors en série étant régulé selon la différence entre la somme de valeurs représentatives des courants des points milieu de tous les ensembles et la somme de valeurs de consigne (IinA, IinB, IinC) affectées aux ensembles.
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