Invention Application
- Patent Title: CURRENT SENSING TECHNIQUES FOR POWER CONVERTER CIRCUITS
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Application No.: US17714937Application Date: 2022-04-06
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Publication No.: US20220376600A1Publication Date: 2022-11-24
- Inventor: Owen Jong , Yingyi Yan , Ya Liu , Jindong Zhang
- Applicant: Analog Devices, Inc.
- Applicant Address: US MA Wilmington
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Wilmington
- Main IPC: H02M1/00
- IPC: H02M1/00 ; H02M3/158

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.
Public/Granted literature
- US11979081B2 Current sensing techniques for power converter circuits Public/Granted day:2024-05-07
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