三种具有快速动态响应的VRM拓扑分析比较

图六　混合供电拓扑

3　总 结

　　以上提出的三种拓扑，它们从不同的角度出发，实现良好的动态性能，但他们的根本出发点都是希望减少动态过程中输出电容所承担的不平衡电荷。VRM设计需要综合考虑效率、动态性能、功率密度、体积、成本等因数。因此在设计快速动态性能的VRM时，不能把动态性能与其他方面割裂开来考虑。本文的三种拓扑有其各自的有缺点，需要在不同的场合根据实际要求来选择。


参考文献：

[1]　Xunwei Zhou; Pit-Leong Wong; Peng Xu; Lee, F.C.; Huang, A.Q.;Investigation of candidate VRM topologies for future microprocessors　Power Electronics, IEEE Transactions on , Volume: 15 , Issue: 6 , Nov 2000
Pages:1172 - 1182

[2]　Peng Xu; Jia Wei; Kaiwei Yao; Yu Meng; Lee, F.C.;Investigation of candidate topologies for 12 V VRM Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE , Volume: 2 , 10-14 March 2002 Pages:686 - 692 vol.2

[3]　Mao Ye; Peng Xu; Bo Yang; Lee, F.C.;Investigation of topology candidates for 48 V VRM Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE , Volume: 2 , 10-14 March 2002 Pages:699 - 705 vol.2

[4]　Poon, N.K.; Li, C.P.; Pong, M.H.;A low cost DC-DC stepping inductance voltage regulator with fast transient loading response Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE , Volume: 1 , 4-8 March 2001 Pages:268 - 272 vol.1

[5]　Law, Y.Y.; Kong, J.H.; Liu, J.C.P.; Poon, N.K.; Pong, M.H.;Comparison of three topologies for VRM fast transient application Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE , Volume: 1 , 10-14 March 2002 Pages:210 - 215 vol.1

[6] Vazquez, R.; Barrado, A.; Olias, E.; Lazaro, A.; Theoretical study and implementation of a high dynamic performance, high efficiency and low voltage hybrid power supply Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual , Volume: 3 , 17-21 June 2001 Pages:1517 - 1522 vol3.