Title:
FULLY-COUPLED MAGNETIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/185012
Kind Code:
A1
Abstract:
The present invention relates to the technical field of coupled inductors, and especially relates to and provides a fully-coupled magnetic element, comprising at least two phases of circuits. Each phase of circuit is formed by connecting several coupling units, every two phases of circuits are directly coupled by means of at least one coupling unit, and the directions of magnetic fields generated by respective direct current components in the currents of the two phases of circuits are opposite. According to the fully-coupled magnetic element of the present invention, the phases are directly coupled to one another, and low output current ripples are achieved; the integrated fully-coupled magnetic element has very high regularity and expandability, and has the advantages of small size, low cost, strong expansibility, and high integration; and the fully-coupled magnetic element can be integrated with a peripheral semiconductor chip into a single chip, or the fully-coupled magnetic element can be directly fabricated on a wafer which is provided with a semiconductor chip in advance, so that a miniaturized power supply management chip which is highly integrated and does not need an external magnetic passive device is formed, and the miniaturized power supply management chip can replace conventional circuits and solutions such as power supply management based on discrete elements, and is applied to multiple purposes.
Inventors:
WANG NINGNING (CN)
PENG SHANFENG (CN)
YU JUNCHAO (CN)
CIARAN FEENEY (CN)
YE TINGCONG (CN)
PENG SHANFENG (CN)
YU JUNCHAO (CN)
CIARAN FEENEY (CN)
YE TINGCONG (CN)
Application Number:
PCT/CN2021/076112
Publication Date:
September 23, 2021
Filing Date:
February 08, 2021
Export Citation:
Assignee:
UNIV HANGZHOU DIANZI (CN)
International Classes:
H01F38/14; H01F27/30
Domestic Patent References:
| WO2019159455A1 | 2019-08-22 |
Foreign References:
| CN111341544A | 2020-06-26 | |||
| CN109494977A | 2019-03-19 | |||
| CN109546856A | 2019-03-29 | |||
| CN110364342A | 2019-10-22 | |||
| CN108492958A | 2018-09-04 |
Other References:
GUO, RUI ET AL.: "Researches and Applications of A new Variable Coupling-degree Array Integrated Magnetics", PROCEEDINGS OF THE CSEE, vol. 36, no. 18, 20 September 2016 (2016-09-20), XP055851404, DOI: 10.13334/j.0258-8013.pcsee.151544
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