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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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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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公开(公告)号：US20170294922A1
公开(公告)日：2017-10-12
申请号：US15094240
申请日：2016-04-08
Applicant: Infineon Technologies AG
Inventor： Robert Illing , Christian Djelassi , Markus Ladurner , David Jansson
IPC: H03M1/38
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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Patent Agency Ranking
公开(公告)号：US20190190255A1
公开(公告)日：2019-06-20
申请号：US16227715
申请日：2018-12-20
Applicant: Infineon Technologies AG
Inventor： Robert Illing , Christian Djelassi , Markus Ladurner , David Jansson
CPC classification number: H02H9/025 , H02H3/087 , H02H3/0935 , H02H3/10 , H02H3/202 , H02H5/041 , H02H6/005 , H03M1/12 , H03M1/365
Abstract: An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of a first operation mode and a second operation mode based at least on a level of a load current of the electronic switch. In the first operation mode the control circuit is configured to generate a first protection signal based on a current-time-characteristic of the load current and drive the electronic switch based on the first protection signal. The control circuit is configured to generate a status signal such that the status signal has a wakeup pulse when the operation mode changes from the second operation mode to the first operation mode and, after the wakeup pulse, a signal level representing a level of the load current.
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公开(公告)号：US20170294774A1
公开(公告)日：2017-10-12
申请号：US15094533
申请日：2016-04-08
Applicant: Infineon Technologies AG
Inventor： Robert Illing , Christian Djelassi , Markus Ladurner , David Jansson
CPC classification number: H02H9/025 , H02H3/087 , H02H3/0935 , H02H3/10 , H02H3/202 , H02H5/041 , H02H6/005 , H03M1/12 , H03M1/365
Abstract: An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of a first operation mode and a second operation mode based at least on a level of a load current of the electronic switch. In the first operation mode the control circuit is configured to generate a first protection signal based on a current-time-characteristic of the load current and drive the electronic switch based on the first protection signal. The control circuit is configured to generate a status signal such that the status signal has a wakeup pulse when the operation mode changes from the second operation mode to the first operation mode and, after the wakeup pulse, a signal level representing a level of the load current.
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公开(公告)号：US10298251B2
公开(公告)日：2019-05-21
申请号：US15094463
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 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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公开(公告)号：US20170294772A1
公开(公告)日：2017-10-12
申请号：US15094316
申请日：2016-04-08
Applicant: Infineon Technologies AG
Inventor： Robert Illing , Christian Djelassi , Markus Ladurner , David Jansson , Mario Tripolt , Bernhard Marinelli , Alexander Mayer
CPC classification number: H02H9/025 , H02H3/087 , H02H3/0935 , H03K17/145 , H03M1/12
Abstract: An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of at least two operation modes. The at least two operation modes comprise a first operation mode and a second operation mode. The control circuit, in the second operation mode, is configured to perform a set of basic functions and, in the first operation mode, is configured to perform the set of basic functions and at least one additional function. The at least one additional function comprises generating a first protection signal based on a current-time-characteristic of a load current of the electronic switch and driving the electronic switch based on the first protection signal.
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公开(公告)号：US10170905B2
公开(公告)日：2019-01-01
申请号：US15094533
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, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of a first operation mode and a second operation mode based at least on a level of a load current of the electronic switch. In the first operation mode the control circuit is configured to generate a first protection signal based on a current-time-characteristic of the load current and drive the electronic switch based on the first protection signal. The control circuit is configured to generate a status signal such that the status signal has a wakeup pulse when the operation mode changes from the second operation mode to the first operation mode and, after the wakeup pulse, a signal level representing a level of the load current.
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