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Elimination of Subharmonic Oscillation of Digital-Average-Current-Controlled Switching DC–DC Converters

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3 Author(s)
Guohua Zhou ; Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China ; Jianping Xu ; Yanyan Jin

Subharmonic oscillations exist in digital-average-current-controlled switching dc-dc converters with trailing- and leading-edge modulations. To eliminate these subharmonic oscillations, a digital-triangle-compensation (DTC) method is proposed in this letter. The DTC method can easily be implemented in digital way without an extra compensation circuit. Experimental results are given to verify the analysis results.

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Industrial Electronics, IEEE Transactions on  (Volume:57 ,  Issue: 8 )