| MLCC在DC/DC变换器中的应用和优化设计 |
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| 引用本文： | 尹华,陈璞. MLCC在DC/DC变换器中的应用和优化设计[J]. 微电子学, 2011, 41(4) |
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| 作者姓名： | 尹华 陈璞 |
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| 作者单位： | 1. 模拟集成电路重点实验室,重庆,400060
2. 中国电子科技集团公司第二十四研究所,重庆,400060 |
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| 摘 要： | 通过分析电容器的寄生效应和频率特性,研究电容器等效串联电阻对DC/DC变换器电性能和稳定性的影响;明确了多层陶瓷电容器(MLCC)在DC/DC变换器应用中与其他种类电容器的不同之处;并对多层陶瓷电容器的优化设计方法进行探讨,用具体电路说明了优化设计过程。
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| 关 键 词： | DC/DC变换器 多层陶瓷电容器 相位裕量 转折频率 交叉频率 |
Application of MLCC in DC/DC Converter and Its Optimal Design |
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| YIN Hua,CHEN Pu. Application of MLCC in DC/DC Converter and Its Optimal Design[J]. Microelectronics, 2011, 41(4) |
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| Authors: | YIN Hua CHEN Pu |
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| Affiliation: | YIN Hua1,CHEN Pu2(1.Science and Technology on Analog Integrated Circuit Laboratory,Chongqing 400060,P.R.China,2.Sichuan Institute of Solid State Circuits,China Electronics Technology Group Corp.,P.R.China) |
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| Abstract: | Parasitic effects and frequency characteristics of capacitors were analyzed,and effects of equivalent series resistance of capacitor on electrical performance and stability of DC/DC converters were investigated.Difference of multilayer ceramic capacitor(MLCC) from other types of capacitors in application to DC/DC converter were described.With a specific circuit as an example,optimal design of the circuit using MLCC were discussed. |
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| Keywords: | DC/DC converter MLCC Phase margin Transition frequency Crossover frequency |
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