公开(公告)号：US11431162B2

公开(公告)日：2022-08-30

申请号：US16991930

申请日：2020-08-12

Applicant: Infineon Technologies AG

Inventor： Christian Djelassi-Tscheck ,  Bernhard Auer ,  Thomas Blasius ,  Robert Illing ,  David Jacquinod ,  Michael Luschin ,  Andre Mourrier ,  Mario Tripolt

IPC: H02H3/10 ,  H02H9/02 ,  H02H5/04 ,  H02H1/00

Abstract: An integrated circuit that may be employed as a smart switch is described herein. In accordance with one embodiment the integrated circuit includes a power transistor coupled between a supply pin and an output pin and further includes a control circuit configured to trigger a switch-on and a switch-off of the power transistor in accordance with an input signal. The control circuit is configured to trigger a switch-off of the power transistor when a load current passing through the power transistor is at or above a predetermined current and a supply voltage received at the supply pin is at or below a predetermined threshold voltage.

公开(公告)号：US20190157258A1

公开(公告)日：2019-05-23

申请号：US16259857

申请日：2019-01-28

Applicant: Infineon Technologies AG

Inventor： Stefan Decker ,  Robert Illing ,  Michael Nelhiebel

IPC: H01L27/02 ,  H01L29/06 ,  H01L29/78 ,  H01L27/088

CPC classification number: H01L27/0266 ,  H01L23/62 ,  H01L27/088 ,  H01L29/0653 ,  H01L29/7827 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A semiconductor device includes a semiconductor body having opposite first and second surfaces. The semiconductor body includes a load current component having a load current transistor area and a sensor component having a sensor transistor area. The load current transistor area and the sensor transistor area share a same transistor unit construction. The load current transistor area includes first and second transistor area parts, and the sensor transistor area includes a third transistor area part. The first and the third transistor area parts differ from the second transistor area part between the first and the third transistor area parts by a load current transistor area element being absent in the second transistor area part. The second transistor area part is electrically disconnected from a parallel connection of the first and second transistor area parts by the load current transistor area element being absent in the second transistor area part.

公开(公告)号：US09887532B2

公开(公告)日：2018-02-06

申请号：US14597077

申请日：2015-01-14

Applicant: Infineon Technologies AG

Inventor： Christian Djelassi ,  Hans-Peter Kreuter ,  Robert Illing ,  Alexander Mayer ,  Luca Petruzzi ,  Bernhard Auer ,  Markus Ladurner ,  Alberto Zanardi

IPC: H02H3/08 ,  H02H3/087 ,  H02H3/07

CPC classification number: H02H3/08 ,  H02H3/07

Abstract: Devices and methods comprising a switch and an overload detection are disclosed. When an overload detection is detected, a first retry scheme followed by a second retry scheme different from the first retry scheme may be applied. If the overload condition persists, the switch may be disabled.

公开(公告)号：US20170294918A1

公开(公告)日：2017-10-12

申请号：US15094463

申请日：2016-04-08

Applicant: Infineon Technologies AG

Inventor： Robert Illing ,  Christian Djelassi ,  Markus Ladurner ,  David Jansson

IPC: H03M1/12 ,  H02H3/38

CPC classification number: H03M1/124 ,  H02H3/087 ,  H02H3/0935 ,  H02H3/10 ,  H02H3/202 ,  H02H3/38 ,  H02H5/041 ,  H03M1/365

Abstract: An embodiment electronic circuit includes an electronic switch comprising a load path, a first protection circuit configured to generate a first protection signal based on a current-time-characteristic of a load current through the load path of the electronic switch, and a drive circuit configured to drive the electronic switch based on the first protection signal. The first protection circuit includes an analog-to-digital converter (ADC) configured to receive an ADC input signal representing the load current, to sample the ADC input signal once in each of a plurality of successive sampling periods, and to output an ADC output signal that includes a sequence of values such that each of the values represents a respective sample of the ADC input signal. The ADC is configured to pseudo-randomly select a sample time in each sampling period.

公开(公告)号：US09640972B2

公开(公告)日：2017-05-02

申请号：US14226762

申请日：2014-03-26

Applicant: Infineon Technologies AG

Inventor： Hans-Peter Kreuter ,  Christian Djelassi ,  Markus Ladurner ,  Robert Illing

IPC: H02H3/08 ,  H03K17/082 ,  H01H83/00 ,  H02H3/02 ,  H02H9/04 ,  H02H3/087 ,  H03K17/16 ,  H01H83/04 ,  H02H3/18

CPC classification number: H02H3/08 ,  H01H83/00 ,  H01H83/04 ,  H02H3/025 ,  H02H3/087 ,  H02H3/18 ,  H02H9/04 ,  H03K17/082 ,  H03K17/0822 ,  H03K17/0826 ,  H03K17/166

Abstract: A power circuit is described that includes a switch coupled to a resistive-inductive-capacitive load and a driver coupled to the switch. The driver is configured to detect an emergency event within the power circuit. After detecting the emergency event within the power circuit, the driver is further configured to perform a controlled emergency switch-off operation of the switch to minimize the maximum temperature of the switch during the detected emergency event and switch-off operation.

公开(公告)号：US09387797B2

公开(公告)日：2016-07-12

申请号：US14031082

申请日：2013-09-19

Applicant: Infineon Technologies AG

Inventor： Gebhart Dippold ,  Robert Illing ,  Albino Pidutti

IPC: B60Q1/34 ,  B60Q1/38

CPC classification number: B60Q1/34 ,  B60Q1/382

Abstract: A direction indicator circuit for controlling a direction indicator in a vehicle is provided. The direction indicator circuit may include a first terminal for connecting to a supply voltage terminal; a second terminal for connecting to a lighting means of a direction indicator and to a direction indicator switch; and a third terminal for connecting to a capacitor; wherein the direction indicator circuit is configured to provide the direction indicator with a current during an on state and with no current during an off state, wherein the duration of the on state and the duration of the off state are determined by the size of the capacitor; wherein the capacitor is discharged essentially constantly during the on state, and wherein the capacitor is charged essentially constantly during the off state.

Abstract translation: 提供了一种用于控制车辆中的方向指示器的方向指示器电路。 方向指示电路可以包括用于连接到电源电压端子的第一端子; 用于连接到方向指示器的照明装置和方向指示器开关的第二端子; 以及用于连接到电容器的第三端子; 其中所述方向指示器电路被配置为在导通状态期间向所述方向指示器提供电流，并且在关断状态期间没有电流，其中所述导通状态的持续时间和所述断开状态的持续时间由所述电容器的尺寸确定 ; 其中所述电容器在导通状态下基本上恒定地放电，并且其中所述电容器在所述断开状态下基本上恒定地充电。

公开(公告)号：US20140085075A1

公开(公告)日：2014-03-27

申请号：US14036031

申请日：2013-09-25

Applicant: Infineon Technologies AG

Inventor： Gebhart Dippold ,  Stephane Fraisse ,  Robert Illing ,  Albino Pidutti

IPC: B60Q1/34

CPC classification number: B60Q1/34 ,  B60Q1/382

Abstract: In various embodiments, a direction indicator circuit for controlling a direction indicator in a vehicle is provided. The direction indicator circuit may include: a first terminal for connecting to a supply voltage; a second terminal for connecting to a direction indicator switch and a lighting means; a third terminal for connecting to a capacitor; and a switch for providing a current, wherein the switch is connected to the first terminal and to the second terminal; wherein the direction indicator circuit is designed to provide the lighting means with a current during an on state using the switch and with no current during an off state; wherein during the on state the direction indicator circuit checks the provided current at least once and goes into the off state if the check detects a current which is lower than a predefined current.

Abstract translation: 在各种实施例中，提供了一种用于控制车辆中的方向指示器的方向指示器电路。 方向指示器电路可以包括：用于连接到电源电压的第一端子; 用于连接到方向指示器开关和照明装置的第二端子; 用于连接到电容器的第三端子; 以及用于提供电流的开关，其中所述开关连接到所述第一端子和所述第二端子; 其中所述方向指示器电路被设计成在打开状态期间使用所述开关提供所述照明装置的电流，并且在关闭状态期间没有电流; 其中在导通状态下，方向指示器电路至少检查所提供的电流，并且如果检查检测到低于预定电流的电流则进入断开状态。

公开(公告)号：US20230307902A1

公开(公告)日：2023-09-28

申请号：US18188797

申请日：2023-03-23

Applicant: Infineon Technologies AG

Inventor： Alexander Mayer ,  Robert Illing

IPC: H02H3/087 ,  H02H9/02 ,  H02H3/08

CPC classification number: H02H3/087 ,  H02H9/025 ,  H02H3/085

Abstract: A circuit for a smart semiconductor switch includes an electronic switch electrically coupled between an output node and a supply node. An overcurrent protective circuit is configured to generate an overcurrent signal in response to a load current flowing through the electronic switch exceeding a first overcurrent threshold, and to cause the electronic switch to be tripped. A control circuit is configured to switch the electronic switch on and off based on an input signal in a first mode, and to drive a load connected to the output node by repeatedly switching the electronic switch on and off in a second mode, and to prevent the electronic switch from being permanently tripped by the overcurrent protective circuit.

公开(公告)号：US11177644B2

公开(公告)日：2021-11-16

申请号：US16923030

申请日：2020-07-07

Applicant: Infineon Technologies AG

Inventor： Alexander Mayer ,  Robert Illing ,  Marco Faricelli

IPC: H02H3/00 ,  H02H3/087 ,  H02H3/04 ,  H02H3/06 ,  H02H5/04 ,  H03M1/34 ,  H02H1/00 ,  G01R19/165 ,  G01R19/15 ,  H03K5/24

Abstract: A circuit may include an electronic switch that has a load current path coupled between an output node and a supply node and that is configured to connect or disconnect the output node and the supply node in accordance with a drive signal. Further, the circuit includes a monitoring circuit that is configured to receive a current sense signal, which represents the load current passing through the load current path, and that is further configured to determine a protection signal based on the current sense signal, a state of the monitoring circuit, and at least one wire parameter. The wire parameter characterizes a wire that is—during operation—connected to the output node, and the protection signal is indicative of whether to disconnect the output node from supply node. Further, the circuit includes a protection circuit connected to the monitoring circuit.

公开(公告)号：US10998898B2

公开(公告)日：2021-05-04

申请号：US16227894

申请日：2018-12-20

Applicant: Infineon Technologies AG

Inventor： Robert Illing ,  Christian Djelassi-Tscheck ,  Alexander Mayer

IPC: H03K17/08 ,  H03K17/082 ,  H03K17/0812

Abstract: A method includes monitoring a load path voltage and an operating parameter of the transistor device; operating the transistor device in a normal mode when the operating parameter is below a threshold associated with the operating parameter, where operating the transistor device in the normal mode includes operating the transistor device in one of an on-state or an off-state based on a drive signal; and operating the transistor device in a fault mode upon detecting a fault based on comparing the operating parameter with the threshold. Operating the transistor device in the fault mode includes switching off the transistor device, operating the transistor device in the on-state includes adjusting the threshold in accordance with a first characteristic curve dependent on the load path voltage, and operating the transistor device in the off-state includes adjusting the threshold according to a second characteristic curve different from the first characteristic curve.