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公开(公告)号：US11949334B2
公开(公告)日：2024-04-02
申请号：US17644521
申请日：2021-12-15
Applicant: Apple Inc.
Inventor： Jonathan F. Bolus , Alberto Alessandro Angelo Puggelli , Fabio Gozzini , Hao Zhou
CPC classification number: H02M3/158 , H02M1/0009 , H02M3/1584
Abstract: A power converter is disclosed. The power converter includes a switching circuit configured to source current to a switch node that is coupled, via an inductor, to a regulated power supply node. A DC resistance sensing circuit includes a first filter and a second filters. The first filter circuit is configured to filter a voltage level of a first terminal of the inductor to generate a first filtered signal, while the second filter circuit is configured to filter a voltage level of a second terminal of the inductor to generate a second filtered signal. A control circuit is configured to adjust the operation of the switching circuit using a voltage level of the regulated power supply node, the first filtered signal, and the second filtered signal.
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公开(公告)号：US11431249B2
公开(公告)日：2022-08-30
申请号：US17005129
申请日：2020-08-27
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Ofir Gilad , Floyd L. Dankert , Hubert Attah , Sanjay Pant , Shawn Searles , Georg Diebel
Abstract: A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor is configured to regulate a voltage level of a power supply node using a particular one of multiple available operating modes. In response to receiving a command to reduce the voltage level of the power supply node, the power converter circuit begins to reduce the voltage level of the power supply node, while autonomously selecting different ones of available operating modes. The power converter circuit may compare to the voltage level of the power supply node to boundary levels and select a different operating mode when the voltage level of the power supply node exceeds one of the boundaries. By switching operating modes during the negative slew of the voltage level of the power supply node, the power converter may maintain a target efficiency during the reduction in voltage.
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公开(公告)号：US11296597B1
公开(公告)日：2022-04-05
申请号：US17033597
申请日：2020-09-25
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Ahmed M. Sawaby
Abstract: A power converter circuit included in a computer system includes a switched-capacitor circuit as well as one or more bypass devices, and generates a particular voltage on a regulated power supply node. In response to situations that can result in a rapid transient of the voltage level on the regulated power supply node (e.g., upscaling or downscaling), the power converter circuit may activate the bypass devices to source or sink current from the regulated power supply node. By employing both the switched-capacitor circuit and the bypass devices, the power converter may be able to more rapidly adjust the voltage level of the regulated output supply node, as well as maintain voltage across the devices and capacitors included in the switched-capacitor circuit within specified tolerances.
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公开(公告)号：US11742762B2
公开(公告)日：2023-08-29
申请号：US17934648
申请日：2022-09-23
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Hubert Attah , Hao Zhou , Shawn Searles
CPC classification number: H02M3/1584 , H02M1/0025 , H02M1/0032 , H02M3/1586
Abstract: An apparatus includes a control circuit and a voltage regulator circuit coupled to a regulated power supply node. The voltage regulator circuit is configured to generate a power signal on the regulated power supply node using a reference voltage level. The apparatus further includes a control circuit that is configured to determine an operating mode using results of a comparison of a threshold value and a load current being drawn from the regulated power supply node by a load circuit. The control circuit may be further configured to set, in a first operating mode, the reference voltage level independently of the load current, and set, in a second operating mode, the reference voltage level using the load current.
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公开(公告)号：US20230086364A1
公开(公告)日：2023-03-23
申请号：US17934648
申请日：2022-09-23
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Hubert Attah , Hao Zhou , Shawn Searles
Abstract: An apparatus includes a control circuit and a voltage regulator circuit coupled to a regulated power supply node. The voltage regulator circuit is configured to generate a power signal on the regulated power supply node using a reference voltage level. The apparatus further includes a control circuit that is configured to determine an operating mode using results of a comparison of a threshold value and a load current being drawn from the regulated power supply node by a load circuit. The control circuit may be further configured to set, in a first operating mode, the reference voltage level independently of the load current, and set, in a second operating mode, the reference voltage level using the load current.
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Patent Agency Ranking
公开(公告)号：US11456670B2
公开(公告)日：2022-09-27
申请号：US16791773
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Hubert Attah , Hao Zhou , Shawn Searles
Abstract: An apparatus includes a control circuit and a voltage regulator circuit coupled to a regulated power supply node. The voltage regulator circuit is configured to generate a power signal on the regulated power supply node using a reference voltage level. The apparatus further includes a control circuit that is configured to determine an operating mode using results of a comparison of a threshold value and a load current being drawn from the regulated power supply node by a load circuit. The control circuit may be further configured to set, in a first operating mode, the reference voltage level independently of the load current, and set, in a second operating mode, the reference voltage level using the load current.
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公开(公告)号：US20230188035A1
公开(公告)日：2023-06-15
申请号：US17644521
申请日：2021-12-15
Applicant: Apple Inc.
Inventor： Jonathan F. Bolus , Alberto Alessandro Angelo Puggelli , Fabio Gozzini , Hao Zhou
CPC classification number: H02M3/158 , H02M1/0009
Abstract: A power converter is disclosed. The power converter includes a switching circuit configured to source current to a switch node that is coupled, via an inductor, to a regulated power supply node. A DC resistance sensing circuit includes a first filter and a second filters. The first filter circuit is configured to filter a voltage level of a first terminal of the inductor to generate a first filtered signal, while the second filter circuit is configured to filter a voltage level of a second terminal of the inductor to generate a second filtered signal. A control circuit is configured to adjust the operation of the switching circuit using a voltage level of the regulated power supply node, the first filtered signal, and the second filtered signal.
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公开(公告)号：US20220103065A1
公开(公告)日：2022-03-31
申请号：US17033597
申请日：2020-09-25
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Ahmed M. Sawaby
IPC: H02M3/07 , G01R19/165 , G11C5/14
Abstract: A power converter circuit included in a computer system includes a switched-capacitor circuit as well as one or more bypass devices, and generates a particular voltage on a regulated power supply node. In response to situations that can result in a rapid transient of the voltage level on the regulated power supply node (e.g., upscaling or downscaling), the power converter circuit may activate the bypass devices to source or sink current from the regulated power supply node. By employing both the switched-capacitor circuit and the bypass devices, the power converter may be able to more rapidly adjust the voltage level of the regulated output supply node, as well as maintain voltage across the devices and capacitors included in the switched-capacitor circuit within specified tolerances.
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公开(公告)号：US20220069704A1
公开(公告)日：2022-03-03
申请号：US17005129
申请日：2020-08-27
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Ofir Gilad , Floyd L. Dankert , Hubert Attah , Sanjay Pant , Shawn Searles , Georg Diebel
Abstract: A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor is configured to regulate a voltage level of a power supply node using a particular one of multiple available operating modes. In response to receiving a command to reduce the voltage level of the power supply node, the power converter circuit begins to reduce the voltage level of the power supply node, while autonomously selecting different ones of available operating modes. The power converter circuit may compare to the voltage level of the power supply node to boundary levels and select a different operating mode when the voltage level of the power supply node exceeds one of the boundaries. By switching operating modes during the negative slew of the voltage level of the power supply node, the power converter may maintain a target efficiency during the reduction in voltage.
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公开(公告)号：US20210257912A1
公开(公告)日：2021-08-19
申请号：US16791773
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Hubert Attah , Hao Zhou , Shawn Searles
IPC: H02M3/158
Abstract: An apparatus includes a control circuit and a voltage regulator circuit coupled to a regulated power supply node. The voltage regulator circuit is configured to generate a power signal on the regulated power supply node using a reference voltage level. The apparatus further includes a control circuit that is configured to determine an operating mode using results of a comparison of a threshold value and a load current being drawn from the regulated power supply node by a load circuit. The control circuit may be further configured to set, in a first operating mode, the reference voltage level independently of the load current, and set, in a second operating mode, the reference voltage level using the load current.
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