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公开(公告)号：US11888400B2
公开(公告)日：2024-01-30
申请号：US17373881
申请日：2021-07-13
Inventor： Jean Camiolo , Francesco Ferrazza , Nathalie Ballot
CPC classification number: H02M3/33523 , G06F13/4282 , G06F2213/0042
Abstract: In an embodiment, an USB interface includes a transformer, a primary winding of the transformer and a first switch connected in series between a first node and a second node, a secondary winding of the transformer and a component connected in series between a third node and a fourth node, the fourth node configured to be set a first reference potential, a second switch connected between the third node and a first terminal, the first terminal configured to provide an output voltage of the USB interface; wherein the component is configured to avoid a current circulation in the secondary winding when the first switch is closed and a control circuit configured to compare a first voltage of an interconnection node between the secondary winding and the component to a first threshold and compare the first voltage to a second threshold when the first voltage is, in absolute values, above the first threshold.
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Patent Agency Ranking
公开(公告)号：US20240128877A1
公开(公告)日：2024-04-18
申请号：US18389940
申请日：2023-12-20
Inventor： Jean Camiolo , Francesco Ferrazza , Nathalie Ballot
CPC classification number: H02M3/33523 , G06F13/4282 , H02M1/32 , H02M3/33569 , H02M3/33576 , G06F2213/0042
Abstract: In an embodiment, a USB interface includes a transformer, a primary winding of the transformer, and a first switch in series between a first and a second node, a secondary winding of the transformer and a component in series between a third and a fourth node, the fourth node configured to be set a first reference potential, a second switch connected between the third node and a first terminal, the first terminal configured to provide an output voltage of the USB interface; wherein the component is configured to avoid a current circulation in the secondary winding when the first switch is closed and a control circuit configured to compare a first voltage of an interconnection node between the secondary winding and the component to a first threshold and compare the first voltage to a second threshold when the first voltage is, in absolute values, above the first threshold.
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公开(公告)号：US12160174B2
公开(公告)日：2024-12-03
申请号：US18389940
申请日：2023-12-20
Inventor： Jean Camiolo , Francesco Ferrazza , Nathalie Ballot
Abstract: In an embodiment, a USB interface includes a transformer, a primary winding of the transformer, and a first switch in series between a first and a second node, a secondary winding of the transformer and a component in series between a third and a fourth node, the fourth node configured to be set a first reference potential, a second switch connected between the third node and a first terminal, the first terminal configured to provide an output voltage of the USB interface; wherein the component is configured to avoid a current circulation in the secondary winding when the first switch is closed and a control circuit configured to compare a first voltage of an interconnection node between the secondary winding and the component to a first threshold and compare the first voltage to a second threshold when the first voltage is, in absolute values, above the first threshold.
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公开(公告)号：US12093098B2
公开(公告)日：2024-09-17
申请号：US17647125
申请日：2022-01-05
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Christophe Lorin , Nathalie Ballot
CPC classification number: G06F1/266 , G06F13/4068 , G06F2213/0042
Abstract: The present disclosure relates to an USB PD-type interface including a first node receiving a first potential, a second node delivering a second potential, and a third node at a reference potential; a resistor connected between a fourth node coupled to the first node, and a fifth node; a MOS transistor connected between the fifth node and the second node; a bipolar transistor having a collector connected to a gate of the MOS transistor and an emitter connected to the fourth node or to the fifth node; and a circuit configured to deliver a control potential to a base of the bipolar transistor determined from a current in the first resistor.
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公开(公告)号：US20240402778A1
公开(公告)日：2024-12-05
申请号：US18798023
申请日：2024-08-08
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Christophe Lorin , Nathalie Ballot
Abstract: The present disclosure relates to an USB PD-type interface including a first node receiving a first potential, a second node delivering a second potential, and a third node at a reference potential; a resistor connected between a fourth node coupled to the first node, and a fifth node; a MOS transistor connected between the fifth node and the second node; a bipolar transistor having a collector connected to a gate of the MOS transistor and an emitter connected to the fourth node or the fifth node; and a circuit configured to deliver a control potential to a base of the bipolar transistor determined from a current in the first resistor.
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公开(公告)号：US20220244770A1
公开(公告)日：2022-08-04
申请号：US17647125
申请日：2022-01-05
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Christophe Lorin , Nathalie Ballot
IPC: G06F1/26
Abstract: The present disclosure relates to an USB PD-type interface including a first node receiving a first potential, a second node delivering a second potential, and a third node at a reference potential; a resistor connected between a fourth node coupled to the first node, and a fifth node; a MOS transistor connected between the fifth node and the second node; a bipolar transistor having a collector connected to a gate of the MOS transistor and an emitter connected to the fourth node or to the fifth node; and a circuit configured to deliver a control potential to a base of the bipolar transistor determined from a current in the first resistor.
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