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公开(公告)号：US20240298119A1
公开(公告)日：2024-09-05
申请号：US18177579
申请日：2023-03-02
Applicant: Infineon Technologies AG
Inventor： Andreas Wiesbauer , Jose Luis Ceballos , Fulvio Ciciotti , Benno Muehlbacher , Maria Tzitzilaki , Mohammed Farag Nouraldin Hassan
CPC classification number: H04R19/005 , H03F3/187 , H04R3/06 , H03F2200/03 , H04R2201/003
Abstract: In accordance with an embodiment, a circuit includes a differential amplifier having inputs configured to be coupled to an output of a differential microelectromechanical systems (MEMS) device; a common mode coupling circuit coupled to an output of the differential amplifier; and an amplifier having an input coupled to an output of the common mode coupling circuit and an output configured to be AC coupled to a bias input node of the differential MEMS device.
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公开(公告)号：US20210270872A1
公开(公告)日：2021-09-02
申请号：US17325742
申请日：2021-05-20
Applicant: Infineon Technologies AG
Inventor： Richard Gaggl , Andrea Baschirotto , Cesare Buffa , Fulvio Ciciotti
Abstract: A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.
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公开(公告)号：US20240430622A1
公开(公告)日：2024-12-26
申请号：US18337959
申请日：2023-06-20
Applicant: Infineon Technologies AG
Inventor： Fulvio Ciciotti , Jose Luis Ceballos , Luca Sant , Alessandro Caspani , Andreas Wiesbauer
Abstract: An attenuator circuit includes a microelectromechanical system (MEMS) device having an output for providing an analog output voltage; a switch having a first controlled node coupled to an output of the MEMS device, a second controlled node for receiving a replica analog output voltage, and a control node for receiving a control signal; and a capacitor coupled to the switch.
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公开(公告)号：US20240154583A1
公开(公告)日：2024-05-09
申请号：US18417561
申请日：2024-01-19
Applicant: Infineon Technologies AG
Inventor： Jose Luis Ceballos , Fulvio Ciciotti , Benno Muehlbacher , Andreas Wiesbauer
CPC classification number: H03F3/183 , H04R3/00 , H04R19/04 , H03F2200/03 , H04R2201/003
Abstract: In accordance with an embodiment, a circuit includes: a first super source follower; a compensation circuit having a compensating node configured to provide a voltage of opposite phase of a voltage of an internal node of the first super source follower; and a first compensation capacitor coupled between an input of the first super source follower and the compensating node of the compensation circuit.
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Patent Agency Ranking
公开(公告)号：US20190120879A1
公开(公告)日：2019-04-25
申请号：US15789199
申请日：2017-10-20
Applicant: Infineon Technologies AG
Inventor： Richard Gaggl , Andrea Baschirotto , Cesare Buffa , Fulvio Ciciotti
IPC: G01R15/00
Abstract: A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.
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公开(公告)号：US12199575B2
公开(公告)日：2025-01-14
申请号：US18417561
申请日：2024-01-19
Applicant: Infineon Technologies AG
Inventor： Jose Luis Ceballos , Fulvio Ciciotti , Benno Muehlbacher , Andreas Wiesbauer
Abstract: In accordance with an embodiment, a circuit includes: a first super source follower; a compensation circuit having a compensating node configured to provide a voltage of opposite phase of a voltage of an internal node of the first super source follower; and a first compensation capacitor coupled between an input of the first super source follower and the compensating node of the compensation circuit.
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公开(公告)号：US11750960B2
公开(公告)日：2023-09-05
申请号：US17451562
申请日：2021-10-20
Applicant: Infineon Technologies AG
Inventor： Jose Luis Ceballos , Hong Chen , Fulvio Ciciotti , Andreas Wiesbauer , Bernhard Wotruba
CPC classification number: H04R1/08 , H03F3/183 , H03F2200/03 , H04R3/00 , H04R29/00
Abstract: A microphone includes an amplifier coupled to an input node of the microphone; a shock detector coupled to the input node of the microphone; and a recovery circuit having an input coupled to an output of the shock detector, and an output coupled to the input of the microphone.
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公开(公告)号：US20230121912A1
公开(公告)日：2023-04-20
申请号：US17451562
申请日：2021-10-20
Applicant: Infineon Technologies AG
Inventor： Jose Luis Ceballos , Hong Chen , Fulvio Ciciotti , Andreas Wiesbauer , Bernhard Wotruba
Abstract: A microphone includes an amplifier coupled to an input node of the microphone; a shock detector coupled to the input node of the microphone; and a recovery circuit having an input coupled to an output of the shock detector, and an output coupled to the input of the microphone.
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公开(公告)号：US11099213B2
公开(公告)日：2021-08-24
申请号：US15789199
申请日：2017-10-20
Applicant: Infineon Technologies AG
Inventor： Richard Gaggl , Andrea Baschirotto , Cesare Buffa , Fulvio Ciciotti
Abstract: A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.
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