Design of a contactless battery charger for cellular phone

被引：256

作者：

Kim, CG ^{[1
]}

Seo, DH ^{[1
]}

You, JS ^{[1
]}

Park, JH ^{[1
]}

Cho, BH ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2001年 / 48卷 / 06期

关键词：

battery-charging control; contactless charger; loosely coupled transformer; series resonant; transformer design;

D O I：

10.1109/41.969404

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, the design of a contactless charger for the lithium-ion battery of a cellular phone is presented. In this charger, the primary core of the transformer is in the charger unit and the secondary core is in the telephone. The gap (3 mm) between them is the thickness of the two plastic cases. The transformer core design for the maximum coupling coefficient with the size constraint on the secondary side is presented. Analysis of the primary-side series resonant converter with the loosely coupled transformer is performed, and the design optimization is presented. For the battery-charging control, a simple control circuit is presented and its performance is verified from the experimental results.

引用

页码：1238 / 1247

页数：10

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