Unified design for ZVT PWM converters with resonant auxiliary circuit

被引:20
|
作者
Martins, ML [1 ]
Russi, JL [1 ]
Pinheiro, H [1 ]
Pinheiro, JR [1 ]
Gründling, HA [1 ]
Hey, HL [1 ]
机构
[1] Univ Fed Santa Maria, Power Elect & Control Res Grp, BR-97105900 Santa Maria, RS, Brazil
来源
关键词
D O I
10.1049/ip-epa:20040214
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Operation modes of zero-voltage transition (ZVT) PWM converters with resonant auxiliary circuit (RAC) are identified and analysed by means of a common topology. A novel state-plane approach is used to determine the soft-switching boundary for this sort of converter. A unified design criterion, based on the analytical definition of the soft-switching boundary, is described in detail. By means of the proposed criterion the time spent on repetitive numerical simulation of a given topology to define its design guidelines based on a set of particular features can be significantly reduced. The theoretical analysis is confirmed by means of experimental results obtained from ZVT-PWM boost converters, which operate at 1 kW, 100 kHz.
引用
收藏
页码:303 / 312
页数:10
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