Title :
Elimination of Subharmonic Oscillation of Digital-Average-Current-Controlled Switching DC–DC Converters
Author :
Zhou, Guohua ; Xu, Jianping ; Jin, Yanyan
Author_Institution :
Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China
Abstract :
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.
Keywords :
DC-DC power convertors; harmonics suppression; oscillations; DTC method; digital triangle compensation method; digital-average-current- controlled switching DC-DC converters; subharmonic oscillation elimination; Digital-average-current (DAC) control; digital control; digital triangle compensation (DTC); switching dc–dc converters;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2009.2035996
