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Patent Searching and Data


Title:
TRANSFORMER AND POWER ADAPTER
Document Type and Number:
WIPO Patent Application WO/2018/176301
Kind Code:
A1
Abstract:
A transformer (100) and a power adapter are provided. The transformer comprises: a frame (N0), a primary coil (N1) reverse-wound on the frame, an auxiliary coil (N2), a shielding coil (N4), and a secondary coil (N3) forward-wound on the frame. The primary coil is configured to receive a voltage signal output by a power supply, and provide, according to the voltage signal, an input voltage signal to the secondary coil. The secondary coil is connected to a load, and is configured to output, according to the input voltage signal, a powering voltage to power the load. The auxiliary coil and the primary coil are disposed according to dotted ends, and are configured to transform, according to the turn ratio of the transformer, the powering voltage into an auxiliary voltage signal. The shielding coil is grounded, is used as a shielding layer of the transformer, and is configured to adjust the parasitic capacitance of the transformer and suppress electromagnetic interference (EMI).

Inventors:
LV, Zhitao (14 F, Unit ASkyworth Building, No.1 Gaoxinnan Road, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
ZHOU, Feng (14 F, Unit ASkyworth Building, No.1 Gaoxinnan Road, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
Application Number:
CN2017/078715
Publication Date:
October 04, 2018
Filing Date:
March 30, 2017
Export Citation:
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Assignee:
SHENZHEN SKYWORTH DIGITAL TECHNOLOGY CO., LTD (14 F, Unit ASkyworth Building, No.1 Gaoxinnan Road, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
International Classes:
H01F27/38; H01F27/36; H02M1/44
Foreign References:
CN103310956A2013-09-18
CN102163492A2011-08-24
CN105405602A2016-03-16
CN105513769A2016-04-20
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (F6 Xijin Centre, 39 Lianhuachi East Rd.Haidian District, Beijing 6, 100036, CN)
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