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| Space State Average Model of PSM in Boost Converter |
| Niu Quan-min①②; Luo Ping①; Li Zhao-ji①; Zhang Bo① |
①IC Design Center University of Electronic Science and Technology of China, Chengdu 610054, China;
②Radar Academy Air Force, Wuhan 430010, China |
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Abstract Based on boost converter, a new mode named PSM is modeled and analyzed using space state average method. Some useful formulae such as output voltage ratio, relationship between modulation factor and load, conversion efficiency are given in this paper. The conclusion can be easily got that PSM is an available control mode with high efficiency, especially for converter with light loads. The simulation results are given by designing the control circuit with PSM characteristic.
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Received: 25 February 2005
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2006, Vol. 28 
