公开(公告)号：US11264982B2

公开(公告)日：2022-03-01

申请号：US15944377

申请日：2018-04-03

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/082 ,  H03K19/003 ,  B06B1/02

Abstract: A high voltage driving circuit for driving a load receives a low voltage input signal and generates a high voltage output signal. A short circuit protection circuit including a first electronic switch operated by the low voltage input signal and a second electronic switch operated by a low voltage signal obtained by a voltage division of the output high voltage signal. The first electronic switch causing a first pull-up current to be sent to a capacitive element whose voltage controls an input of a threshold comparator. A second electronic switch causes a second pull-down current to be drawn from the capacitive element whose voltage controls the input of the threshold comparator. A short circuit detection signal is generated at an output of said threshold comparator, indicating a short circuit and capable of inhibiting operation of the driving circuit.

公开(公告)号：US09954519B2

公开(公告)日：2018-04-24

申请号：US15655389

申请日：2017-07-20

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/16 ,  H03K5/08 ,  H03K17/041

CPC classification number: H03K17/162 ,  H03K5/08 ,  H03K17/04106 ,  H03K17/102 ,  H03K17/6874 ,  H03K2217/0054

Abstract: A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.

公开(公告)号：US10211826B2

公开(公告)日：2019-02-19

申请号：US15946595

申请日：2018-04-05

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/00 ,  H03K17/16 ,  H03K5/08 ,  H03K17/041 ,  H03K17/687 ,  H03K17/10

Abstract: A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.

公开(公告)号：US09401799B2

公开(公告)日：2016-07-26

申请号：US14661937

申请日：2015-03-18

Applicant: STMicroelectronics S.r.l.

Inventor： Juri Giovannone ,  Valeria Bottarel ,  Marco Terenzi ,  Sandro Rossi

IPC: H04L7/00 ,  H03K5/135 ,  H03K5/14 ,  H03L7/081

CPC classification number: H04L7/0045 ,  H03K5/135 ,  H03K5/14 ,  H03L7/0814 ,  H04L7/0037

Abstract: The operation of a circuit exhibiting a delay that is subject to a time spread as a function of process, voltage, and temperature variations is synchronized with a synchronization signal. A digital delay corresponding to the time spread is applied to the synchronization signal. The digital delay is generated via cascaded delay elements having respective delay values and by controlling the number of cascaded delay elements in the circuit that are applied to the synchronization signal.

Abstract translation: 表现出作为过程，电压和温度变化的函数的时间扩展的延迟的电路的操作与同步信号同步。 对应于时间扩展的数字延迟被施加到同步信号。 通过具有各自的延迟值的级联延迟元件和通过控制施加到同步信号的电路中的级联延迟元件的数量来产生数字延迟。

公开(公告)号：US20180302080A1

公开(公告)日：2018-10-18

申请号：US15944377

申请日：2018-04-03

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/082 ,  B06B1/02

Abstract: A high voltage driving circuit for driving a load receives a low voltage input signal and generates a high voltage output signal. A short circuit protection circuit including a first electronic switch operated by the low voltage input signal and a second electronic switch operated by a low voltage signal obtained by a voltage division of the output high voltage signal. The first electronic switch causing a first pull-up current to be sent to a capacitive element whose voltage controls an input of a threshold comparator. A second electronic switch causes a second pull-down current to be drawn from the capacitive element whose voltage controls the input of the threshold comparator. A short circuit detection signal is generated at an output of said threshold comparator, indicating a short circuit and capable of inhibiting operation of the driving circuit.

公开(公告)号：US20180226964A1

公开(公告)日：2018-08-09

申请号：US15946595

申请日：2018-04-05

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/16 ,  H03K17/041 ,  H03K5/08

CPC classification number: H03K17/162 ,  H03K5/08 ,  H03K17/04106 ,  H03K17/102 ,  H03K17/6874 ,  H03K2217/0054

Abstract: A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.

公开(公告)号：US20170317670A1

公开(公告)日：2017-11-02

申请号：US15655389

申请日：2017-07-20

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/16 ,  H03K17/041 ,  H03K5/08

CPC classification number: H03K17/162 ,  H03K5/08 ,  H03K17/04106 ,  H03K17/102 ,  H03K17/6874 ,  H03K2217/0054

Abstract: A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.

公开(公告)号：US09722596B2

公开(公告)日：2017-08-01

申请号：US15193914

申请日：2016-06-27

Applicant: STMicroelectronics S.R.L.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/00 ,  H03K17/16 ,  H03K17/041 ,  H03K5/08

CPC classification number: H03K17/162 ,  H03K5/08 ,  H03K17/04106 ,  H03K17/102 ,  H03K17/6874 ,  H03K2217/0054

Abstract: A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.

公开(公告)号：US20170179943A1

公开(公告)日：2017-06-22

申请号：US15193914

申请日：2016-06-27

Applicant: STMicroelectronics S.R.L.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/16 ,  H03K5/08 ,  H03K17/041

CPC classification number: H03K17/162 ,  H03K5/08 ,  H03K17/04106 ,  H03K17/102 ,  H03K17/6874 ,  H03K2217/0054

Abstract: A high-voltage electronic switch includes first and second transistors defining a current flow path between an input and output of the switch. The transistors have a common point of the current flow path and a common control terminal. A control circuit includes a voltage line receiving a limit operating voltage and first and second branches coupled between the voltage line and the common point and common control terminal, respectively. Further transistors are activated, upon turning-off of the first and second transistors, for coupling the branches to the voltage line. The branches include a parallel connected resistor, diode, and string of diodes with opposite polarities. The diode of the first branch plus string of diodes of the second branch and diode of the second branch plus string of diodes of the first branch provide coupling paths between the voltage line and, respectively, the common point and common control terminal.

公开(公告)号：US20160036583A1

公开(公告)日：2016-02-04

申请号：US14661937

申请日：2015-03-18

Applicant: STMicroelectronics S.r.l.

Inventor： Juri Giovannone ,  Valeria Bottarel ,  Marco Terenzi ,  Sandro Rossi

IPC: H04L7/00

CPC classification number: H04L7/0045 ,  H03K5/135 ,  H03K5/14 ,  H03L7/0814 ,  H04L7/0037

Abstract: The operation of a circuit exhibiting a delay that is subject to a time spread as a function of process, voltage, and temperature variations is synchronized with a sync signal by applying to the sync signal a digital delay, which can add to the delay that is subject to time spread.The digital delay is generated via cascaded delay elements having respective delay values and by controlling the number of cascaded delay elements in the circuit.

Abstract translation: 表现出作为过程，电压和温度变化的函数的时间扩展的延迟的电路的操作与同步信号同步，该同步信号通过向同步信号施加数字延迟，这可以增加延迟 受时间限制。 通过具有各自的延迟值的级联延迟元件和通过控制电路中的级联延迟元件的数量来产生数字延迟。