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公开(公告)号：US20160094210A1
公开(公告)日：2016-03-31
申请号：US14797571
申请日：2015-07-13
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Vanni POLETTO , Patrizia MILAZZO , Sergio LECCE
IPC: H03K5/04 , H03K19/003 , H03K17/041
CPC classification number: H03K5/04 , H03K17/04106 , H03K17/04206 , H03K17/166 , H03K19/00323 , H03K19/0175
Abstract: A driver device is for switching on and off a transistor for supplying a load by driving a control electrode of the transistor. The driver device includes a first terminal connected to the control electrode of the transistor, a second terminal connected between the transistor and the load, and a current-discharge path coupled to the first terminal. The current-discharge path includes a diode and is activated when the transistor is switched off. The diode becomes non-conductive to interrupt the current-discharge path when the voltage on the second terminal reaches a threshold value.
Abstract translation: 驱动器件用于通过驱动晶体管的控制电极来接通和关断用于提供负载的晶体管。 驱动器件包括连接到晶体管的控制电极的第一端子，连接在晶体管和负载之间的第二端子以及耦合到第一端子的电流 - 放电路径。 电流放电路径包括二极管，并且当晶体管关断时被激活。 当第二端子上的电压达到阈值时，二极管变得不导通以中断电流 - 放电路径。
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公开(公告)号：US20230187922A1
公开(公告)日：2023-06-15
申请号：US18064861
申请日：2022-12-12
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.
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3.发明公开公开(公告)号：US20230216517A1
公开(公告)日：2023-07-06
申请号：US18069526
申请日：2022-12-21
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Vanni POLETTO , Nicola ROGLEDI , Antonio Davide LEONE
Abstract: Provided is an analog to digital converter configured to receive a continuous input signal. The analog to digital converter includes an integrating block, comprising at least an integrating stage, which output is coupled to a flash analog to digital converter. The analog to digital converter apparatus includes a feedback path coupled to the output of said flash analog to digital converter. The feedback path includes at least a digital to analog conversion block which output is compared at least to the input signal to obtain an error signal which is brought as input to said integrating block. A control block is configured to perform control comprising at least a digital integration, is coupled between the output of said flash analog to digital converter and said feedback path.
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公开(公告)号：US20230198514A1
公开(公告)日：2023-06-22
申请号：US18064840
申请日：2022-12-12
Inventor： Antoine PAVLIN , Vanni POLETTO , Vincenzo RANDAZZO
IPC: H03K17/0812
CPC classification number: H03K17/08122 , H03K2017/0806
Abstract: The present disclosure relates to a device comprising a first transistor and a first circuit comprising first and second terminals, the first circuit being configured to generate a first voltage representing the temperature of the first transistor, a first terminal of the first circuit being coupled to the drain of the first transistor.
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公开(公告)号：US20200350902A1
公开(公告)日：2020-11-05
申请号：US16854518
申请日：2020-04-21
Applicant: STMicroelectronics S.r.l.
Inventor： Giancarlo RAGONE , Vanni POLETTO
IPC: H03K17/082 , B60R21/017
Abstract: A drive circuit for airbag systems, for instance includes a differential transconductance amplifier having a first input node, a second input node, an output node coupled to the second input node via a feedback line; a transistor coupled between a drive node and a supply node configured to be coupled to a power supply source; a control node coupled to the control electrode of the transistor and the output node; a Zener diode arrangement having cathode and anode terminals coupled to the supply node and the first input node, respectively; a pull-up component arranged in parallel with the Zener diode arrangement; and an enable switch coupled to the first input node and referred to ground and switchable between a conductive state and a non-conductive state with the differential transconductance amplifier providing controlled current discharging/charging of the control node to make the transistor conductive/non-conductive, respectively.
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Patent Agency Ranking
公开(公告)号：US20240275371A1
公开(公告)日：2024-08-15
申请号：US18643249
申请日：2024-04-23
Applicant: STMicroelectronics S.r.l.
Inventor： Vanni POLETTO , Ivan FLORIANI
Abstract: A circuit for decoding a pulse width modulated (PWM) signal generates an output signal switching between a first and second logic values as a function of a duty-cycle of the PWM signal. Current generating circuitry receives the PWM signal and injects a current to and sinks a current from an intermediate node as a function of the values of the PWM signal. A capacitor coupled to the intermediate node is alternatively charged and discharged by the injected and sunk currents, respectively, to generate a voltage. A comparator circuit coupled to the intermediate node compares the generated voltage to a comparison voltage and drives the logic values of the output signal as a function of the comparison.
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公开(公告)号：US20230370056A1
公开(公告)日：2023-11-16
申请号：US18144456
申请日：2023-05-08
Applicant: STMicroelectronics S.r.l.
Inventor： Vanni POLETTO , Fabrizio LOI
IPC: H03K17/082 , B60R16/033 , H02M1/32
CPC classification number: H03K17/0822 , B60R16/033 , H02M1/32 , H03K2217/0063 , H03K2217/0072
Abstract: An HS switching transistor is coupled between a high-side node and a switching node. An LS switching transistor is coupled between the switching node and a low-side node. An inductive load is coupled to the switching node in a way where one of the HS/LS switching transistors is freewheeling. In response to detection of a short circuit occurring at the switching node with the freewheeling switching transistor in the conductive state: an electrical signal at the switching node is sensed, a comparison is made between the sensed electrical signal and a threshold level, and a driving signal is provided to control freewheeling switching transistor to switch to the non-conductive state when the comparison indicates that the electrical signal has reached the threshold level.
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公开(公告)号：US20220209763A1
公开(公告)日：2022-06-30
申请号：US17556495
申请日：2021-12-20
Applicant: STMicroelectronics S.r.l.
Inventor： Vanni POLETTO , Ivan FLORIANI
Abstract: A circuit for decoding a pulse width modulated (PWM) signal generates an output signal switching between a first and second logic values as a function of a duty-cycle of the PWM signal. Current generating circuitry receives the PWM signal and injects a current to and sinks a current from an intermediate node as a function of the values of the PWM signal. A capacitor coupled to the intermediate node is alternatively charged and discharged by the injected and sunk currents, respectively, to generate a voltage. A comparator circuit coupled to the intermediate node compares the generated voltage to a comparison voltage and drives the logic values of the output signal as a function of the comparison.
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9.发明公开公开(公告)号：US20240006996A1
公开(公告)日：2024-01-04
申请号：US18369308
申请日：2023-09-18
Applicant: STMicroelectronics S.r.l.
Inventor： Marco LA PILA , Giuseppe PLATANIA , Vanni POLETTO
CPC classification number: H02M3/158 , H02M1/0009 , H02M3/07
Abstract: A switching regulator circuit has a switching transistor actuated during a switching on phase of a duty cycle. The current flowing through an inductor of the switching regulator circuit is determined from sensing a transistor current flowing through the switching transistor during switching on phase and selectively charging a capacitor of a switched capacitor circuit dependent on a current sense signal during the switching on phase.
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公开(公告)号：US20230117101A1
公开(公告)日：2023-04-20
申请号：US17959797
申请日：2022-10-04
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Marco CIGNOLI , Vanni POLETTO
Abstract: Provided is a circuit including a switching transistor having a control terminal configured to receive a control signal and having a current flow path therethrough. The switching transistor becomes conductive in response to the control signal having a first value. The current flow path through the switching transistor provides a current flow line between two nodes. In a non-conductive state, a voltage drop stress is across the switching transistor. The circuit comprises a sense transistor that is coupled to and a scaled replica of the switching transistor. The sense transistor has a sense current therethrough. The sense current is indicative of the current of the switching transistor. The circuit includes coupling circuitry configured to apply the voltage drop stress across the sense transistor in response to the switching transistor being non-conductive. In the non-conductive state, the voltage drop stress is replicated across both the switching transistor and the sense transistor.
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