TRANSFORMER COMPUTER DESIGN AID FOR HIGHER FREQUENCY SWITCHING POWER SUPPLIES.

被引：18

作者：

Coonrod, Neil R. ^{[1
]}

机构：

[1] Rockwell Int Corp, Cedar Rapids, IA,, USA, Rockwell Int Corp, Cedar Rapids, IA, USA

来源：

IEEE Transactions on Power Electronics | 1986年 / PE-1卷 / 04期

关键词：

ELECTRIC POWER SUPPLIES TO APPARATUS - Switching - ELECTRIC TRANSFORMERS - Losses - MATHEMATICAL TECHNIQUES - Algorithms - OPTIMIZATION - PULSE WIDTH MODULATION;

D O I：

10.1109/TPEL.1986.4766317

中图分类号：

学科分类号：

摘要：

A method for the computer-aided design of transformers is presented that was developed for use at switching frequencies above 100 kHz. At such high frequencies, the classical method of using the saturation constraint results in an overheated transformer due to excessive core loss. In the proposed method, flux density is selected by an optimization procedure that minimizes total transformer losses. The computer is used to find the optimum value of flux density based on thermal considerations. In particular, the minimum-size transformer that still exhibits a satisfactory temperature rise is determined. The transformer design aid can be used for current or voltage fed pulsewidth-modulated power supplies in either the bridge or push-pull configuration, using toroidal ferrite cores. The design procedure, including key equations, is presented in enough detail so that it can be adapted for use with other switching power supply topologies and core geometries. Emphasis is placed on the algorithm used in the transformer design procedure.

引用

页码：248 / 256