Title:
PLANAR TRANSFORMER AND RELATED DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/217494
Kind Code:
A1
Abstract:
The present application provides a planar transformer and a related device. The planar transformer comprises a magnetic core, wherein the magnetic core comprises a first magnetic core cover, a second magnetic core cover, n first magnetic core columns, and k second magnetic core columns, the n first magnetic core columns and the k second magnetic core columns are disposed between the first magnetic core cover and the second magnetic core cover, and both n and k are integers greater than 0; each first magnetic core column among the n first magnetic core columns is provided with a primary winding and a secondary winding that are coupled to one another, and each second magnetic core column among the k second magnetic core columns is provided with an auxiliary inductive winding; when energized, a first magnetic flux counteracts, when passing through the first magnetic core cover and the second magnetic core cover, part of a second magnetic flux, the first magnetic flux being the magnetic flux generated by the auxiliary inductive winding disposed on the k second magnetic core columns, and the second magnetic flux being the magnetic flux generated by the primary winding disposed on the n first magnetic core columns. The thickness of the planar transformer provided in the present application is thinner.
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Inventors:
YU PENG (CN)
ZOU JUN (CN)
ZOU JUN (CN)
Application Number:
PCT/CN2021/087201
Publication Date:
October 20, 2022
Filing Date:
April 14, 2021
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H01F27/28; H01F27/24; H01F30/00
Foreign References:
| CN107437456A | 2017-12-05 | |||
| CN204596590U | 2015-08-26 | |||
| CN111554493A | 2020-08-18 | |||
| JP2010226343A | 2010-10-07 |
Other References:
See also references of EP 4310871A4
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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