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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：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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公开(公告)号：US20220231600A1
公开(公告)日：2022-07-21
申请号：US17152065
申请日：2021-01-19
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Ya Liu , Yingyi Yan
IPC: H02M3/07
Abstract: A dual-phase hybrid DC-DC converter using a switched-capacitor technique is described. The dual-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 dual-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 dual-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the dual-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：US11283351B2
公开(公告)日：2022-03-22
申请号：US16906519
申请日：2020-06-19
Applicant: Analog Devices, Inc.
Inventor： Yingyi Yan , Yiding Gu
Abstract: This disclosure describes techniques to control switching operations of a switching regulator. The disclosure includes a system comprising a switching regulator configured to use an inductor to generate an output voltage signal from a. pulse-width-modulated (PWM) signal by controlling one or more switches of the switching regulator that vary charging operations of the inductor; transient handling circuitry coupled to receive a feedback voltage based on the output voltage signal and configured to generate first and second current signals that represent a difference between the feedback voltage and a reference voltage; and control circuitry configured to generate the PWM signal based on the first and second current signals such that the first current signal changes a frequency of an oscillator used to generate the PWM signal and the second current signal changes a bandwidth of a feedback loop associated with the switching regulator.
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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：US11594956B2
公开(公告)日：2023-02-28
申请号：US17152065
申请日：2021-01-19
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Ya Liu , Yingyi Yan
IPC: H02M3/07
Abstract: A dual-phase hybrid DC-DC converter using a switched-capacitor technique is described. The dual-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 dual-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 dual-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the dual-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：US20220115955A1
公开(公告)日：2022-04-14
申请号：US17066128
申请日：2020-10-08
Applicant: Analog Devices, Inc.
Inventor： Yingyi Yan
Abstract: A switching converter circuit comprises an inductive circuit element; a driver switching circuit configured to provide energy to the inductive circuit element to generate an output voltage of the switching converter circuit, the output voltage having an alternating current (AC) signal component and a direct current (DC) signal component; a current sensing circuit configured to generate a current sense signal representative of inductor current of the inductive circuit element, wherein an output of the current sensing circuit is coupled to a bias circuit node; and a dynamic bias circuit configured to apply a dynamic bias voltage to the bias circuit node, wherein the dynamic bias voltage includes an AC component that tracks the AC signal component of the output voltage.
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公开(公告)号：US11545886B2
公开(公告)日：2023-01-03
申请号：US17248289
申请日：2021-01-19
Applicant: Analog Devices, Inc.
Inventor： Yingyi Yan , San Hwa Chee
Abstract: Pulse width modulation (PWM) controllers for hybrid converters are provided herein. In certain embodiments, a PWM controller for a hybrid converter includes a threshold generation circuit for generating a threshold signal based on an output voltage of the hybrid converter, a threshold adjustment circuit for generating an adjusted threshold signal based on sensing a voltage of a flying capacitor of the hybrid converter, and a comparator that generates a comparison signal based on comparing the adjusted threshold signal to an indication of an inductor current of the hybrid converter. The output of the comparator is used for generating PWM control signals used for turning on and off the switches (for instance, power transistors) of the hybrid converter.
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公开(公告)号：US20220376620A1
公开(公告)日：2022-11-24
申请号：US17325000
申请日：2021-05-19
Applicant: Analog Devices, Inc.
Inventor： Owen Jong , Yingyi Yan , Ya Liu , Jindong Zhang
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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