电源技术2011，Vol.35Issue(9)：1128-1130,3.
小功率开关电源CLC纹波抑制电路特性分析
Characteristics of ripple attenuates with low power SMPS based on CLC circuit
摘要
Abstract
The low power switching power supply is commonly used for the system energy supply in portable instruments.And the ripple noise of power supply directly affected the system performance. A 12 V switching power supply based on MAX606 was designed with a ir-type CLC low-pass filter to attenuate the output ripple. By changing the type of electrolytic capacitors (SMD aluminum electrolytic, line electrolytic, SMD tantalum electrolytic), the size of capacitor, inductance and load resistance, the ripple attenuates of CLC circuit was illustrated. The results show that in the CLC circuit of low power switching power supply, the inductance plays an important role in ripple rejection, and capacitor takes the second; the effect of SMD aluminum electrolytic is the best, line electrolytic is the second and SMD tantalum electrolytic is the worst; the capacitance above 100 μF and mH inductance level should be used.关键词
开关电源/纹波/π型/CLCKey words
SMPS/ ripple/ ir-type/ CLC分类
动力与电气工程引用本文复制引用
成毅,庹先国,范磊磊,刘静,王洪辉..小功率开关电源CLC纹波抑制电路特性分析[J].电源技术,2011,35(9):1128-1130,3.基金项目
国家杰出青年科学基金(41025015) （41025015）
地质灾害防治与地质环境保护国家重点实验室基金(SKLGP2009Z007) （SKLGP2009Z007）
核废物与环境安全国防重点学科实验室开放基金(10ZXNK05) （10ZXNK05）
成都市科技攻关计划(10GGYB323GX-023) （10GGYB323GX-023）
