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Analysis and elimination of voltage imbalance between the split capacitors in half-bridge boost rectifiers

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3 Author(s)
Yu-Kang Lo ; Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei ; Tzu-Herng Song ; Huang-Jen Chiu

The voltage imbalance between the split capacitors in a halfbridge boost rectifier is reviewed in this letter. It can be proven that the optimal compensation strategy is to add only a DC component in the source current. The adverse effects of the imbalance elimination control loop to the input power factor are studied. The analytical results are verified through experiments.

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Industrial Electronics, IEEE Transactions on  (Volume:49 ,  Issue: 5 )