Title:
LOW-CORE-LOSS TRANSFORMER WITH MAGNETIC PILLAR IN CENTER OF FOUR CORNER PILLARS
Document Type and Number:
WIPO Patent Application WO/2021/072790
Kind Code:
A1
Abstract:
A low-core-loss transformer for high transfer ratio and high power density applications can have five pillars including four corner pillars and at least one center pillar between magnetic metal plates. The center pillar provides an additional flux path to reduce thermal and core losses and improve efficiency. Magnetic flux density may be further reduced by having multiple central pillars in an N-track configuration in several kinds of symmetrical arrangements. The low-core-loss transformer achieves a flexible voltage transfer ratio. The ratio can be either even or odd numbers. An odd ratio design is able to fulfill the requirement of future data centers to supply a 400-volt high-distribution power bus. The transformer windings can be traces on a Printed Circuit Board (PCB) that integrate electronic components for a compact and modular design.
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Inventors:
HSU LIANG JYE (CN)
LIU YAN (CN)
WONG SHEK MONG (CN)
LIU YAN (CN)
WONG SHEK MONG (CN)
Application Number:
PCT/CN2019/113105
Publication Date:
April 22, 2021
Filing Date:
October 24, 2019
Export Citation:
Assignee:
HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD (CN)
International Classes:
H01F27/28
Foreign References:
| US20180226182A1 | 2018-08-09 | |||
| CN207082424U | 2018-03-09 | |||
| CN106971829A | 2017-07-21 | |||
| US20090243782A1 | 2009-10-01 | |||
| US20170330678A1 | 2017-11-16 | |||
| JPH09120910A | 1997-05-06 | |||
| US4665357A | 1987-05-12 | |||
| CN101552098A | 2009-10-07 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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