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公开(公告)号：US20230047637A1
公开(公告)日：2023-02-16
申请号：US17402331
申请日：2021-08-13
Applicant: Analog Devices, Inc.
Inventor： Dongwon Kwon , Min Kyu Song , Jindong Zhang , Min Chen
Abstract: A multi-phase buck-boost converter circuit comprises a buck circuit stage, a boost circuit stage, and a control circuit. The buck circuit stage is connected to an input of the buck-boost converter circuit to receive an input voltage. The boost circuit stage includes multiple boost circuits connected in parallel. The boost circuit stage is coupled to the buck circuit stage and an output of the multi-phase buck-boost converter circuit. Each boost circuit includes an inductor coupled to the buck circuit stage. The control circuit operates the multiple boost circuit stages out of phase with respect to each other in a boost mode, operates the buck circuit stage in a buck mode, and operates the multiple boost circuit stages out of phase with respect to each other and operates the buck circuit stage in a buck-boost mode.
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公开(公告)号：US12278551B2
公开(公告)日：2025-04-15
申请号：US17711680
申请日：2022-04-01
Applicant: Analog Devices, Inc.
Inventor： Xuebing Chen , Owen Jong , Ya Liu , Jindong Zhang , Mark Frederick Hartman
Abstract: Several current sensing techniques are described that may be used to obtain an accurate current signal, which may help to achieve the best performance with a trans-inductor voltage regulator (TLVR) topology. The techniques may have the coupling effect from the secondary side included, so the current sensing signal is accurate for the regulation and other functions related to the current signal. The current sensing techniques may have more accurate gain and phase information in the middle frequency and high frequency ranges. The coupling effect from the secondary side may be well represented in the current sensing signal. The advantages of TLVR topology may be enhanced with accurate current information.
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公开(公告)号：US11824451B2
公开(公告)日：2023-11-21
申请号：US17402331
申请日：2021-08-13
Applicant: Analog Devices, Inc.
Inventor： Dongwon Kwon , Min Kyu Song , Jindong Zhang , Min Chen
CPC classification number: H02M3/1586 , H02M1/0009 , H02M3/1582 , H02M3/1584
Abstract: A multi-phase buck-boost converter circuit comprises a buck circuit stage, a boost circuit stage, and a control circuit. The buck circuit stage is connected to an input of the buck-boost converter circuit to receive an input voltage. The boost circuit stage includes multiple boost circuits connected in parallel. The boost circuit stage is coupled to the buck circuit stage and an output of the multi-phase buck-boost converter circuit. Each boost circuit includes an inductor coupled to the buck circuit stage. The control circuit operates the multiple boost circuit stages out of phase with respect to each other in a boost mode, operates the buck circuit stage in a buck mode, and operates the multiple boost circuit stages out of phase with respect to each other and operates the buck circuit stage in a buck-boost mode.
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4.发明公开公开(公告)号：US20230253146A1
公开(公告)日：2023-08-10
申请号：US18051261
申请日：2022-10-31
Applicant: Analog Devices, Inc.
Inventor： Zichen Miao , Jindong Zhang , Zhengrong Huang
Abstract: A low-profile dual-phase inverse coupled inductor structure can include diagonally overlapped windings and gap controlled inverse coupling, such as can be useful to help achieve strong negative coupling and high saturation current for POL applications. The device may include a coupled inductor structure comprising a first magnetic core piece, and a conductive first winding portion on at least a portion of the first magnetic core piece. An electrical insulator may be included on at least a portion of the first winding portion and a conductive second winding portion may be located such as to cover the insulator. At least a portion of the second winding portion overlaps, and may be separated by the insulator from, at least an underlying portion of the first winding portion. A second magnetic core piece may be located on the second winding portion.
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公开(公告)号：US20230253144A1
公开(公告)日：2023-08-10
申请号：US18061302
申请日：2022-12-02
Applicant: Analog Devices, Inc.
Inventor： Zhengrong Huang , Jindong Zhang , Zichen Miao
CPC classification number: H01F27/306 , H01F27/263 , H01F41/06 , H01F41/0206
Abstract: A device may include a coupled inductor structure comprising a first winding portion, a second winding portion, and a magnetic core structure. The magnetic core structure may include a first and second core piece that are at least partially cross-sectionally U-shaped. A first connecting core piece may be attached to a first portion of the first core piece to a first portion of the second core piece, and a second connecting core piece may attach a second portion of the first core piece to a second portion of the second core piece.
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Patent Agency Ranking
公开(公告)号：US11652415B2
公开(公告)日：2023-05-16
申请号：US17325000
申请日：2021-05-19
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Yingyi Yan , Ya Liu , Jindong Zhang
CPC classification number: H02M3/158 , H02M1/0009 , H02M1/0064 , H02M3/1584
Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. In addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.
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公开(公告)号：US11979081B2
公开(公告)日：2024-05-07
申请号：US17714937
申请日：2022-04-06
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Yingyi Yan , Ya Liu , Jindong Zhang
CPC classification number: H02M1/0009 , H02M3/1582
Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. in addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.
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公开(公告)号：US20230318430A1
公开(公告)日：2023-10-05
申请号：US17711680
申请日：2022-04-01
Applicant: Analog Devices, Inc
Inventor： Xuebing Chen , Owen Jong , Ya Liu , Jindong Zhang , Mark Frederick Hartman
CPC classification number: H02M1/0009 , H02M3/1584 , G01R19/0092
Abstract: Several current sensing techniques are described that may be used to obtain an accurate current signal, which may help to achieve the best performance with a trans-inductor voltage regulator (TLVR) topology. The techniques may have the coupling effect from the secondary side included, so the current sensing signal is accurate for the regulation and other functions related to the current signal. The current sensing techniques may have more accurate gain and phase information in the middle frequency and high frequency ranges. The coupling effect from the secondary side may be well represented in the current sensing signal. The advantages of TLVR topology may be enhanced with accurate current information.
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公开(公告)号：US11601049B2
公开(公告)日：2023-03-07
申请号：US17375830
申请日：2021-07-14
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Ya Liu , Yingyi Yan , Jindong Zhang
Abstract: A multi-phase hybrid DC-DC converter using a switched-capacitor technique is described. The multi-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the multi-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the multi-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the multi-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.
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公开(公告)号：US20220231601A1
公开(公告)日：2022-07-21
申请号：US17375830
申请日：2021-07-14
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Ya Liu , Yingyi Yan , Jindong Zhang
IPC: H02M3/07
Abstract: A multi-phase hybrid DC-DC converter using a switched-capacitor technique is described. The multi-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the multi-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the multi-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the multi-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.
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