| 推挽DC-DC变换器建模与控制设计 |
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| 引用本文： | 李斌,王卫国,刘克承. 推挽DC-DC变换器建模与控制设计[J]. 现代电子技术, 2011, 0(24): 18-22,25 |
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| 作者姓名： | 李斌 王卫国 刘克承 |
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| 作者单位： | 兰州空间技术物理研究所; |
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| 摘 要： | 运用状态空间平均法,推导出连续导电模式下非理想电压型推挽DC-DC变换器功率级电路的低频小信号传递函数,仿真出变换器功率级电路的幅频和相频曲线（Bode图）,通过优化设计反馈补偿电路,可以提高电压型推挽DC-DC变换器系统的稳定性和动态特性。对一台电压型推挽DC-DC变换器样机进行仿真和控制设计,应用网络分析仪Agilent4395A分别测试功率级电路和变换器系统的Bode图,并应用示波器测试变换器系统的负载动态响应,验证了建模和控制设计的正确性。
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| 关 键 词： | 推挽 DC-DC变换器 建模 控制 |
Modeling and Control of Push-pull DC-DC Converter |
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| LI Bin,WANG Wei-guo,LIU Ke-cheng. Modeling and Control of Push-pull DC-DC Converter[J]. Modern Electronic Technique, 2011, 0(24): 18-22,25 |
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| Authors: | LI Bin WANG Wei-guo LIU Ke-cheng |
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| Affiliation: | LI Bin,WANG Wei-guo,LIU Ke-cheng(Lanzhou Institute of Space Technology and Physics,Lanzhou 730000,China) |
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| Abstract: | The state-space averaging method is used to derive the small-signal transfer function for non-ideal power level circuit of voltage mode(VM) pull-push DC-DC converter in CCM,and obtain the amplitude-frequency and phase-frequency curves of the power level circuit in the converter by simulation.The optimization design of feedback compensation circuit can improve the stability and dynamic characteristics of VM pull-push DC-DC converter.The Bode plots of the power level circuit and the whole open-loop system are... |
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| Keywords: | push-pull DC-DC converter modeling control |
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