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公开(公告)号：US10784858B2
公开(公告)日：2020-09-22
申请号：US16249065
申请日：2019-01-16
发明人： Sergio Lecce , Gilles Troussel
IPC分类号： H03K17/687 , H03K19/0185 , H03K17/10 , H03K17/0814 , G05F3/26 , G06F13/20 , H04L12/40
摘要： A driver circuit includes a supply node, a control node configured to receive a control signal, and an output node. An output transistor is coupled to the output node to provide the CAN bus drive signal via the current path through the output transistor. A current mirror is in a current line from the supply node to the output node through the output transistor. The current line includes an intermediate portion between the current mirror and the output transistor. The current mirror is configured to be switched, as a function of the control signal between a first, dominant mode, with the CAN bus drive signal applied to the output node via the output transistor, and a second, recessive mode, with the output transistor providing a high output impedance at the output node.
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公开(公告)号：US20190383861A1
公开(公告)日：2019-12-19
申请号：US16554248
申请日：2019-08-28
IPC分类号： G01R19/165 , G01R31/34 , G11C27/02 , H03F3/45
摘要： A circuit includes a switching circuit including a first switch and a second switch. A current sensing circuit is coupled to the switching circuit to sense a first current through the first switch and to generate a first sensed current signal based on the sensed first current, and configured to sense a second current through the second switch and to generate a second sensed current signal based on the sensed second current. An output circuit is coupled to the current sensing circuit and is configured to generate a failure signal based on the first sensed current signal and the second sensed current signal.
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3.发明申请公开(公告)号：US20190159369A1
公开(公告)日：2019-05-23
申请号：US16259442
申请日：2019-01-28
摘要： 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.
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公开(公告)号：US10982785B2
公开(公告)日：2021-04-20
申请号：US15793464
申请日：2017-10-25
发明人： Sergio Lecce
摘要： A circuit for controlling current in an inductive load is provided. The circuit includes a driver circuit for driving a load current in the inductive load. The driver circuit includes a switch, which is switched on to increase the load current and a recirculation diode, which re-circulates the load current when the switch is off. The circuit includes a control module that generates a control signal to switch on and off the switch. The control module includes a PWM current controller comprising a negative feedback closed loop implementing at least a proportional control and an integral control. The PWM current controller receives a target current value and an estimated current flowing in the load during a measurement PWM cycle. The PWM current controller generates the control signal for a control input of the switch based on an error between the target current and the estimated current.
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公开(公告)号：US20190229726A1
公开(公告)日：2019-07-25
申请号：US16249065
申请日：2019-01-16
发明人： Sergio Lecce , Gilles Troussel
IPC分类号： H03K17/687 , G05F3/26 , G06F13/20 , H04L12/40
摘要： A driver circuit includes a supply node, a control node configured to receive a control signal, and an output node. An output transistor is coupled to the output node to provide the CAN bus drive signal via the current path through the output transistor. A current mirror is in a current line from the supply node to the output node through the output transistor. The current line includes an intermediate portion between the current mirror and the output transistor. The current mirror is configured to be switched, as a function of the control signal between a first, dominant mode, with the CAN bus drive signal applied to the output node via the output transistor, and a second, recessive mode, with the output transistor providing a high output impedance at the output node.
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公开(公告)号：US10215782B2
公开(公告)日：2019-02-26
申请号：US15372127
申请日：2016-12-07
IPC分类号： G01R19/165 , G11C27/02 , H03F3/45 , G01R31/34
摘要： A device measures the current in an inductive load using two separate current-measuring paths to detect the current in the inductive load. The inductive load is connected between first and second nodes, and the first node connected to a first voltage. The device includes first and second transistors cascaded together between the first node and a third node that is connected to a second voltage. First and second sense amplifiers measure the current in the inductive load. The first and second sense amplifiers are connected to at least one terminal of the first and second transistors. Two blocks sample and hold signals from the first and second sense amplifiers, which represent, respectively, the currents in the two separate current-measuring paths. The two currents are subtracted in a comparison node for generating an error signal that is compared with a predefined window and if outside the window a failure signal is generated.
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公开(公告)号：US20160094022A1
公开(公告)日：2016-03-31
申请号：US14753103
申请日：2015-06-29
CPC分类号： H02H3/05 , H02H7/0844 , H02H7/0851 , H02H7/0852 , H02H7/09 , H03K19/007
摘要： A fail-safe device may be coupled to a main device for actuating a switch responsive to a failure. The fail-safe device may include a fail-safe circuit, and an isolation trench surrounding the fail-safe circuit and isolating the fail-safe circuit from the main device. The fail-safe device may include an internal power supply connection, an internal reference voltage connection, a self-biased drive block configured to drive the at least one switch, and a receiver configured to receive failure signals from the main device.
摘要翻译： 故障安全装置可以耦合到主装置，用于响应于故障致动开关。 故障保护装置可以包括故障保护电路和围绕故障保护电路的隔离沟槽，并且将故障安全电路与主设备隔离。 故障保护装置可以包括内部电源连接，内部参考电压连接，被配置为驱动至少一个开关的自偏置驱动块，以及被配置为从主设备接收故障信号的接收器。
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公开(公告)号：US11888304B2
公开(公告)日：2024-01-30
申请号：US16666989
申请日：2019-10-29
发明人： Vittorio D'Angelo , Salvatore Cannavacciuolo , Sergio Lecce , Valerio Bendotti , Orazio Pennisi
CPC分类号： H02H1/063 , H02H9/046 , H02J7/0014
摘要： An integrated circuit with a hot-plug protection circuit includes input pins and an output pin. The input pins are electrically coupled to a common node in the hot-plug protection circuit via respective electrical connections. The integrated circuit includes clamping circuitry coupled between the common node and the output pin, the clamping circuitry activatable as a result of a voltage spike applied across the clamping circuitry. The plurality of electrical connections and the clamping circuitry provide respective current discharge paths between the input pins in the input pins and the output pin, the respective current discharge paths configured to become conductive as a result of a voltage spike applied to any of the input pins in the plurality of input pins being transferred to the common node via the respective electrical connection in the plurality of electrical connections electrically coupling said any of said input pins to the common node.
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公开(公告)号：US11150279B2
公开(公告)日：2021-10-19
申请号：US16554248
申请日：2019-08-28
IPC分类号： G01R31/34 , G01R19/165 , G11C27/02 , H03F3/45
摘要： A circuit includes a switching circuit including a first switch and a second switch. A current sensing circuit is coupled to the switching circuit to sense a first current through the first switch and to generate a first sensed current signal based on the sensed first current, and configured to sense a second current through the second switch and to generate a second sensed current signal based on the sensed second current. An output circuit is coupled to the current sensing circuit and is configured to generate a failure signal based on the first sensed current signal and the second sensed current signal.
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公开(公告)号：US11637683B2
公开(公告)日：2023-04-25
申请号：US17335336
申请日：2021-06-01
发明人： Carmelo Burgio , Walter Girardi , Sergio Lecce
摘要： An input signal arranged in frames is received. The frames include a cyclic redundancy check (CRC) field including a number of bits having bit edges. A timing signal is generated to include adjustable duration waveforms at one of a first duration value and a second duration value. A CRC check determines the occurrence, over the duration, of a number of waveforms of the timing signal having their duration adjusted to one of the first duration value and the second duration value which corresponds to the number of bits. A check signal is produced having a pass/fail value. If pass, the duration of the waveforms in the timing signal is maintained adjusted to the one of the first duration value and the second duration value. If fail, the duration of the waveforms in the timing signal is re-adjusted to the other of the first duration value and the second duration value.
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