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公开(公告)号：US10756720B2
公开(公告)日：2020-08-25
申请号：US15295903
申请日：2016-10-17
Applicant: Infineon Technologies AG
Inventor： Christian Djelassi , Octavian Barbu , Markus Ladurner , Luca Petruzzi
IPC: H03K17/081 , H01L27/02 , H03K17/687 , H03K19/0185 , H03K3/3565 , H03K3/356 , H01L49/02 , H01L29/866
Abstract: A driver circuit for an electronic switch is described herein. According to one embodiment the driver circuit includes an input buffer with an input node for receiving a buffer input signal, a pull-down circuit coupled to the input node and a ground node, and a pull-up circuit coupled to the input node and a supply node. The driver circuit further includes control circuitry configured to activate either the pull-down circuit or the pull-up circuit. The pull-up circuit is activated when the voltage level of the buffer input signal is above a first threshold, and the pull-down circuit is activated when the voltage level of the buffer input signal is below a second threshold.
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公开(公告)号：US10305473B2
公开(公告)日：2019-05-28
申请号：US15454956
申请日：2017-03-09
Applicant: Infineon Technologies AG
Inventor： Albino Pidutti , Markus Ladurner , Daniel Mayer
Abstract: In some examples, a device includes a set of switches configured to deliver current to an output node of the device, wherein the set of switches includes a first switch including a first control terminal and a second switch including a second control terminal, wherein a width-length ratio of the second switch is larger than a width-length ratio of the first switch, and wherein the first switch is electrically connected in parallel with the second switch. The device further includes control circuitry configured to deliver a first control signal to the first control terminal and deliver a second control signal to the second control terminal concurrently with delivering the first control signal to the first control terminal.
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公开(公告)号：US20180262193A1
公开(公告)日：2018-09-13
申请号：US15454956
申请日：2017-03-09
Applicant: Infineon Technologies AG
Inventor： Albino Pidutti , Markus Ladurner , Daniel Mayer
IPC: H03K17/687 , H02M3/07
CPC classification number: H03K17/6872 , H02M1/088 , H02M1/44 , H02M3/07 , H03K17/122
Abstract: In some examples, a device includes a set of switches configured to deliver current to an output node of the device, wherein the set of switches includes a first switch including a first control terminal and a second switch including a second control terminal, wherein a width-length ratio of the second switch is larger than a width-length ratio of the first switch, and wherein the first switch is electrically connected in parallel with the second switch. The device further includes control circuitry configured to deliver a first control signal to the first control terminal and deliver a second control signal to the second control terminal concurrently with delivering the first control signal to the first control terminal.
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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
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.
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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
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.
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Patent Agency Ranking
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.
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公开(公告)号：US09245888B2
公开(公告)日：2016-01-26
申请号：US13631924
申请日：2012-09-29
Applicant: Infineon Technologies AG
Inventor： Luca Petruzzi , Bernhard Auer , Paolo Del Croce , Markus Ladurner
IPC: H01L29/78 , H01L27/092 , H01L27/02 , H03K17/0814 , H01L29/423
CPC classification number: H01L27/0922 , H01L27/0248 , H01L29/42368 , H01L29/7813 , H01L2924/0002 , H03K17/08142 , H01L2924/00
Abstract: A semiconductor device is disclosed. In accordance with a first aspect of the present invention the device includes a semiconductor chip having a substrate, a first supply terminal electrically coupled to the substrate to provide a first supply potential (VS) and a load current to the substrate, and a second supply terminal operably provided with a second supply potential. A first vertical transistor is integrated in the semiconductor chip and electrically coupled between the supply terminal and an output terminal. The first vertical transistor is configured to provide a current path for the load current to the output terminal in accordance with a control signal, which is provided to a gate electrode of the first vertical transistor.
Abstract translation: 公开了一种半导体器件。 根据本发明的第一方面，该器件包括具有衬底的半导体芯片，与衬底电耦合以提供第一电源电位（VS）和向衬底提供负载电流的第一电源端子，以及第二电源 端子可操作地设置有第二电源电位。 第一垂直晶体管集成在半导体芯片中并电耦合在电源端子和输出端子之间。 第一垂直晶体管被配置为根据提供给第一垂直晶体管的栅电极的控制信号为输出端提供负载电流的电流路径。
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公开(公告)号：US12301222B2
公开(公告)日：2025-05-13
申请号：US18334591
申请日：2023-06-14
Applicant: Infineon Technologies AG
Abstract: A circuit arrangement for driving a semiconductor switch includes an undervoltage detection circuit to indicate an undervoltage state when a supply voltage falls below a voltage threshold value. A temperature detection circuit indicates that a temperature of a semiconductor switch exceeds a temperature threshold value. A control circuit for driving the semiconductor switch deactivates the semiconductor switch when the undervoltage detection circuit indicates an undervoltage state, and to reactivate the semiconductor switch when the undervoltage detection circuit no longer indicates an undervoltage state. In this case, the reactivation is delayed by a defined delay time when the semiconductor switch was previously deactivated due to an undervoltage state and the temperature detection circuit indicates that the temperature of the semiconductor switch exceeds the temperature threshold value.
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公开(公告)号：US20230412168A1
公开(公告)日：2023-12-21
申请号：US18334591
申请日：2023-06-14
Applicant: Infineon Technologies AG
CPC classification number: H03K17/223 , H03K17/145 , H03K17/18
Abstract: A circuit arrangement for driving a semiconductor switch includes an undervoltage detection circuit to indicate an undervoltage state when a supply voltage falls below a voltage threshold value. A temperature detection circuit indicates that a temperature of a semiconductor switch exceeds a temperature threshold value. A control circuit for driving the semiconductor switch deactivates the semiconductor switch when the undervoltage detection circuit indicates an undervoltage state, and to reactivate the semiconductor switch when the undervoltage detection circuit no longer indicates an undervoltage state. In this case, the reactivation is delayed by a defined delay time when the semiconductor switch was previously deactivated due to an undervoltage state and the temperature detection circuit indicates that the temperature of the semiconductor switch exceeds the temperature threshold value.
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公开(公告)号：US09954548B2
公开(公告)日：2018-04-24
申请号：US15094240
申请日：2016-04-08
Applicant: Infineon Technologies AG
Inventor： Robert Illing , Christian Djelassi , Markus Ladurner , David Jansson
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 a logarithmic analog-to-digital converter (ADC) configured to receive an ADC input signal representing the load current 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, a filter configured to filter the ADC output signal and output a filter output signal, and a comparator circuit configured to generate the first protection signal based on comparing the filter output signal with a predefined threshold.
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