A novel modulation for four‐switch Buck‐boost converter to eliminate the right half plane zero point
Xiaoyan Yuan,
Kun Wang,
Zhengtao Yang
et al.
Abstract:The four‐switch Buck‐Boost (FSBB) converter are widely used in combination with other isolated converter to extend the voltage range capability of the overall structure. When the converter operates in buck‐boost mode and boost mode, it exhibits a right half plane zero (RHPZ) in the control to output transfer function. This characteristic would cause negative impact to stability of the converter. In order to eliminate the RHPZ, a novel modulation method is proposed in this paper. The buck mode is introduced to … Show more
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