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公开(公告)号：US20200285259A1
公开(公告)日：2020-09-10
申请号：US16804994
申请日：2020-02-28
Applicant: STMicroelectronics S.r.l.
Inventor： Giovanni Luca TORRISI , Salvatore ABBISSO , Cristiano MERONI
Abstract: A voltage regulator circuit includes a first voltage regulator having a first output voltage selection pin set and producing a first output voltage based on a first digital signal received at the first output voltage selection pin set, and a second voltage regulator having a second output voltage selection pin set and producing a second output voltage based on a second digital signal received at the second output voltage selection pin set. The first and second voltage regulators are operable in a voltage tracking mode with the output voltage of the second voltage regulator tracking the output voltage of the first voltage regulator when digital signals received at the selection pin sets have a same value. An overvoltage sensor detects overvoltage events at the first voltage regulator. Control circuitry selectively avoids operation in voltage tracking mode as a result of an overvoltage event detected at the first voltage regulator.
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2.发明申请ELECTRONIC DEVICE AND METHOD FOR DRIVING THE LAMPS OF THE BLINKERS OF A VEHICLE 有权用于驱动车辆的燃烧器的电子装置和方法公开(公告)号：US20140111086A1
公开(公告)日：2014-04-24
申请号：US14049590
申请日：2013-10-09
Applicant: STMicroelectronics S.r.l.
Inventor： Vincenzo RANDAZZO , Giovanni Luca TORRISI , Atanasio LABARBERA
IPC: B60Q1/38
Abstract: An electronic system for driving a lamp of a blinker of a vehicle may include a switch having a first input terminal configured to receive a battery voltage, a second input control terminal configured to receive a control signal for operating the switch, and an output terminal. The system may also include a change-over switch configured to connect, alternatively, the output terminal of the switch to the lamp and to a high impedance reference. The system may also include an electronic device connected to the switch and configured to detect a voltage drop between the first input terminal and the output terminal, and, based upon the voltage drop, generate the control signal to have a value to maintain the switch open for a time interval, and generate the control signal to have a second value to maintain the switch closed for another time interval.
Abstract translation: 用于驱动车辆指示灯的灯的电子系统可以包括具有被配置为接收电池电压的第一输入端子的开关，被配置为接收用于操作开关的控制信号的第二输入控制端子和输出端子。 该系统还可以包括转换开关，其被配置为可选地将开关的输出端子连接到灯和高阻抗基准。 该系统还可以包括连接到开关并被配置为检测第一输入端子和输出端子之间的电压降的电子设备，并且基于电压降，产生控制信号以具有保持开关断开的值 并且产生控制信号以具有第二值，以将开关保持另一时间间隔。
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Patent Agency Ranking
公开(公告)号：US20200336138A1
公开(公告)日：2020-10-22
申请号：US16849020
申请日：2020-04-15
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (Alps) SAS
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.
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公开(公告)号：US20190191536A1
公开(公告)日：2019-06-20
申请号：US16285615
申请日：2019-02-26
Applicant: STMicroelectronics (Alps) SAS , STMicroelectronics Application GmbH , STMicroelectronics S.r.l.
Inventor： Philippe SIRITO-OLIVIER , Giovanni Luca TORRISI , Manuel GAERTNER , Fritz BURKHARDT
CPC classification number: H05B39/02 , B60Q1/00 , B60Q3/80 , H05B33/0806 , H05B33/0815 , H05B39/047
Abstract: The power supply device comprises a supply transistor commanded by a command signal and providing electric power to a lighting module, and a driving means configured to selectively generate, depending on an instruction signal representative of the structure of said at least one lighting module, a first command signal able to command the supply transistor into an ohmic regime, a second command signal able to command the supply transistor into a pulse width modulation regime involving an alternation of ohmic regimes and blocked regimes, and a third command signal able to command the supply transistor into a saturated regime.
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公开(公告)号：US20180310390A1
公开(公告)日：2018-10-25
申请号：US15957578
申请日：2018-04-19
Applicant: STMicroelectronics (Alps) SAS , STMicroelectronics S.r.l. , STMicroelectronics Application GmbH
Inventor： Philippe SIRITO-OLIVIER , Giovanni Luca TORRISI , Manuel GAERTNER , Fritz BURKHARDT
CPC classification number: H05B39/02 , B60Q1/00 , B60Q3/80 , H05B33/0806 , H05B33/0815 , H05B39/047
Abstract: The power supply device comprises a supply transistor commanded by a command signal and providing electric power to a lighting module, and a driving means configured to selectively generate, depending on an instruction signal representative of the structure of said at least one lighting module, a first command signal able to command the supply transistor into an ohmic regime, a second command signal able to command the supply transistor into a pulse width modulation regime involving an alternation of ohmic regimes and blocked regimes, and a third command signal able to command the supply transistor into a saturated regime.
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6.发明公开公开(公告)号：US20240103046A1
公开(公告)日：2024-03-28
申请号：US18371313
申请日：2023-09-21
Applicant: STMicroelectronics S.r.l.
Inventor： Placido DE VITA , Salvatore ABBISSO , Giovanni Luca TORRISI , Antonio Davide LEONE
IPC: G01R17/16 , G01R17/04 , G01R19/00 , G01R19/165 , G01R19/257
CPC classification number: G01R17/16 , G01R17/04 , G01R19/0023 , G01R19/16523 , G01R19/257 , G05F1/461
Abstract: A pre-driving stage drives one or more Field Effect Transistors in a power stage driving a load. A method for measuring current flowing in the Field Effect Transistors includes: measuring drain to source voltages of the one or more Field Effect Transistor; and measuring an operating temperature of the one or more Field Effect Transistor. The current flowing in the Field Effect Transistors is measured by: calculating the respective on drain to source resistance at the operating temperature as a function of the measured operating temperature and obtaining the current value as a ratio of the respective measured drain to source voltage over the calculated drain to source resistance at the operating temperature.
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公开(公告)号：US20210135661A1
公开(公告)日：2021-05-06
申请号：US17145863
申请日：2021-01-11
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (Alps) SAS
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.
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