A hybrid-driven active clamp forward converter based on LM5027

Ni, Xinxin; Wang, Zhengshi; Chen, Huiming; Zhang, Haiyu

doi:10.1109/apec.2011.5744794

Cited by 1 publication

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the design of using the MOSFET synchronous rectifiers (SRs) as the secondary rectification, instead of rectifier diodes, has been appeared to improve the efficiency. Combining the active clamping and SR, the ACF converter with SR has become one of the most suitable topologies to achieve high efficiency at low output voltage and higher frequencies for low‐ and medium‐power applications [6–12].…”

Section: Introductionmentioning

confidence: 99%

Power loss analysis of active clamp forward converter in continuous conduction mode and discontinuous conduction mode operating modes

Zhang

Yao

et al. 2013

IET Power Electronics

View full text Add to dashboard Cite

In order to improve the light-load efficiency of active clamp forward converter with synchronous rectifier (SR), power loss analysis of the converter operating in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) are presented in this study. The light-load efficiency of normal ACF converter with SR is low because the output inductor current can go negative when operating in CCM. Considering the fixed frequency control only, to shift the converter's operating mode from CCM to DCM at a critical point of output current at light-load is a solution for efficiency improvement. Based on the CCM and DCM power dissipation models proposed in this study, the power loss characteristics of the converter are analysed, and the critical shift point of output current can be derived, which has also been verified by an experimental prototype.

show abstract

Section: Introductionmentioning

confidence: 99%