Trace Impedance in Switch-Mode Power Converters

被引：1
|
作者：
Wu, Wei [1 ]
Lozowski, Andy G. [1 ]
机构：
[1] So Illinois Univ, Dept Elect & Comp Engn, Edwardsville, IL 62026 USA
来源：
PROCEEDINGS OF THE 2010 POWER AND ENERGY CONFERENCE AT ILLINOIS (PECI) | 2010年
关键词：
AC resistance; eddy currents; skin effect; planar inductor; INDUCTORS;
D O I：
10.1109/PECI.2010.5437149
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Some of the components used in switch-mode power converters, such as inductors and transformers, may cause substantial power loss when switching frequency is largely increased. If extra heat dissipation or decreased efficiency is not acceptable, one needs to search for a method of reducing power loss. With higher switching frequency, inductors and transformers are commonly implemented with traces on the PCB layout. Planar PCB traces are not free from skin and proximity effects. The influence of these two effects on trace impedance is determined by the layout geometry. In this paper, we discuss the dependence of AC resistance on current frequency while varying the trace geometry. Our results may assist in design of new inductive component geometries to gain better performance and mitigate power loss.
引用
收藏
页码：103 / 106
页数：4
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