Open AccessModified current‐fed full‐bridge isolated power factor correction converter with low‐voltage stress
Author(s) -
Trong Nha Quang,
Chiu HuangJen,
Lo YuKang,
Lin ChinYu,
Alam Mohammed Mahmood
Publication year - 2014
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2013.0183
Subject(s) - current (fluid) , stress (linguistics) , power factor , voltage , materials science , low voltage , half bridge , electrical engineering , power (physics) , bridge (graph theory) , structural engineering , engineering , capacitor , physics , medicine , quantum mechanics , philosophy , linguistics
One drawback of the conventional current‐fed full‐bridge (CFFB) power factor correction (PFC) converters is extremely high‐voltage spikes on metal oxide semiconductor field effect transistors (MOSFETs), which cause many problems such as high‐voltage high‐cost devices used, unreliability and burdensome magnetising components imposed. To overcome above shortcomings, a new isolated CFFB PFC converter featuring efficiency improvement, high input current quality and good common mode (CM) noise performance is proposed in this study. The voltage spikes are effectively eliminated by using a non‐dissipative clamping structure resulting of no‐loss consumption and low‐voltage MOSFETs used. Additionally, to evaluate the conducted electromagnetic interference behaviour, the differential mode loop and CM loop models are also presented. Two testing hardware systems with 180–240 V input, 380 V/1 kW output of the conventional CFFB PFC and proposed PFC were built and inspected to compare their performances. The experimental results showed that the proposed topology completely eliminated the voltage spike on MOSFETs. The efficiency was largely improved by utilising of high‐performance MOSFETs. In consequence, the experimental results reveal the preponderance of the proposed PFC converter to the previous researches on this topic.