Valley current mode pulse train control switching converter and its energy model analysis | Zendy

Jin Sha | Zendy; Jianping Xu | Zendy; Shuhan Liu | Zendy; Shu Zhong | Zendy

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Valley current mode pulse train control switching converter and its energy model analysis

Author(s) -

Jin Sha,

Jianping Xu,

Shuhan Liu,

Shu Zhong

Publication year - 2014

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.63.098401

Subject(s) - converters , oscillation (cell signaling) , transient (computer programming) , control theory (sociology) , energy (signal processing) , pulse width modulation , thermal conduction , mode (computer interface) , pulse (music) , voltage , computer science , materials science , physics , electrical engineering , control (management) , engineering , quantum mechanics , artificial intelligence , operating system , genetics , composite material , biology

Pulse train (PT) control technique is a novel discrete control technique for switching converter operating in discontinuous conduction mode (DCM). When the inductive energy storage is not zero, the low-frequency oscillation phenomenon may occur in PT controlled switching converters operating in continuous conduction mode (CCM). The low-frequency oscillation phenomenon will seriously affect the steady and transient performances of switching converters. In order to solve this problem, valley current mode pulse train (VCM-PT) control technique, which extends the application range from DCM to CCM, is proposed in this paper. The energy model of VCM-PT controlled switching converter is derived and compared with the energy model of PT controlled switching converter. Result indicates that the VCM-PT controlled CCM switching converter has the same energy transfer mode as the traditional PT controlled DCM switching converter and can eliminate fundamentally the low-frequency oscillation phenomenon.

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