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公开(公告)号：US20240339995A1
公开(公告)日：2024-10-10
申请号：US18605449
申请日：2024-03-14
Applicant: Infineon Technologies AG
Inventor： Ionut-Alin Ilie , Cristian Stefan Zegheru
IPC: H03K5/02 , H03K17/687
CPC classification number: H03K5/02 , H03K17/6871
Abstract: The present disclosure provides a capacitance circuit which has an input terminal and is configured to provide an increased capacitance between the input terminal and a first reference voltage. The capacitance circuit comprises a current source structure configured to provide a compensation current at the input terminal, a first transistor having a first control terminal and a first load current and being coupled to the input terminal, a second transistor having a second control terminal, a capacitance amplification circuit configured to provide a capacitance amplification factor and being coupled between the first control terminal and the second control terminal, and a capacitor having a core capacitance and being coupled between the first control terminal and the input terminal, wherein the compensation current corresponds to the first load current during direct current operation, and wherein the increased capacitance is based on the core capacitance and the capacitance amplification factor.
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公开(公告)号：US20220066491A1
公开(公告)日：2022-03-03
申请号：US17009336
申请日：2020-09-01
Applicant: Infineon Technologies AG
Inventor： Ionut-Alin Ilie , Cristian Garbossa , Cristian Stefan Zegheru
Abstract: A circuit configured to perform low-dropout regulation of an output voltage includes a first buffer, a second buffer, controller circuitry, and switching circuitry. The first buffer includes a first driving element configured to provide a first current into a first output node based on the output voltage. The first bias circuitry is configured to bias the first current. The second buffer includes a second driving element configured to provide a second current into a second output node based on a voltage at the first output node. The second bias circuitry is configured to bias the second current. The controller circuitry is configured to generate a control signal based on a current at the pass device and switching circuitry configured to electrically couple the first output node to the control node of the pass device based on the control signal.
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公开(公告)号：US11243553B1
公开(公告)日：2022-02-08
申请号：US17009336
申请日：2020-09-01
Applicant: Infineon Technologies AG
Inventor： Ionut-Alin Ilie , Cristian Garbossa , Cristian Stefan Zegheru
Abstract: A circuit configured to perform low-dropout regulation of an output voltage includes a first buffer, a second buffer, controller circuitry, and switching circuitry. The first buffer includes a first driving element configured to provide a first current into a first output node based on the output voltage. The first bias circuitry is configured to bias the first current. The second buffer includes a second driving element configured to provide a second current into a second output node based on a voltage at the first output node. The second bias circuitry is configured to bias the second current. The controller circuitry is configured to generate a control signal based on a current at the pass device and switching circuitry configured to electrically couple the first output node to the control node of the pass device based on the control signal.
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