DocumentCode :
1889142
Title :
Frequency response analysis for switching converters in SPICE without averaging
Author :
Deng, Haifei ; Huang, Alex Q. ; Ma, Yan
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., USA
Volume :
2
fYear :
2004
fDate :
20-25 June 2004
Firstpage :
861
Abstract :
Stability is the key requirement in designing switching converter ASIC. Achieving this requires an accurate loop gain design. Since DC-DC switching converters are time-varying system, traditional small signal analysis in SPICE cannot be directly used to simulate the loop gain of this kind of system. A new method named periodic small signal analysis is proposed to analyze and simulate DC-DC switching converter inside a SPICE like simulator without the need for averaging. This general method is suitable for any switching regulators. The results are accurate comparing with average modeling and experiment results even beyond half switching frequency. A general procedure to design loop gain is demonstrated in a peak current control buck.
Keywords :
DC-DC power convertors; SPICE; electric current control; frequency response; switching convertors; time-varying systems; DC-DC switching converters; SPICE; accurate loop gain design; frequency response analysis; peak current control; switching converters design; switching regulators; time-varying system; Analytical models; Application specific integrated circuits; Frequency response; Regulators; SPICE; Signal analysis; Stability; Switching converters; Switching frequency; Time varying systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
ISSN :
0275-9306
Print_ISBN :
0-7803-8399-0
Type :
conf
DOI :
10.1109/PESC.2004.1355531
Filename :
1355531
Link To Document :
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