TY - JOUR
T1 - An evaluation of the spectral characteristics of switching converters with chaotic carrier-frequency modulation
AU - Tse, K. K.
AU - Ng, Raymond Wai-Man
AU - Chung, Henry Shu-Hung
AU - Hui, S. Y. Ron
PY - 2003/2
Y1 - 2003/2
N2 - This paper presents an evaluation of the spectral characteristics of switching converters with a chaotic carrier-frequency modulation scheme (CCFMS). By incorporating a Chua's circuit (CC) into the pulsewidth modulator for driving the switches, three modulation schemes, including the standard pulsewidth modulation scheme, periodic carrier-frequency modulation scheme, and CCFMS, can be realized with the CC in equilibrium, limit cycle, and chaos, respectively. The property of frequency spreading in CCFMS is studied by using statistical analysis method. The developed model is applied to formulate the power spectral densities of the input current and the output voltage of the three basic dc/dc converters under CCFMS. Theoretical predictions are verified with experimental measurements.
AB - This paper presents an evaluation of the spectral characteristics of switching converters with a chaotic carrier-frequency modulation scheme (CCFMS). By incorporating a Chua's circuit (CC) into the pulsewidth modulator for driving the switches, three modulation schemes, including the standard pulsewidth modulation scheme, periodic carrier-frequency modulation scheme, and CCFMS, can be realized with the CC in equilibrium, limit cycle, and chaos, respectively. The property of frequency spreading in CCFMS is studied by using statistical analysis method. The developed model is applied to formulate the power spectral densities of the input current and the output voltage of the three basic dc/dc converters under CCFMS. Theoretical predictions are verified with experimental measurements.
KW - Chaotic switching techniques
KW - Dc/dc conversion
KW - Power electronics
KW - Pulsewidth modulation
KW - Random switching techniques
KW - Switching circuits
UR - http://www.scopus.com/inward/record.url?scp=0037320963&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0037320963&origin=recordpage
U2 - 10.1109/TIE.2002.807659
DO - 10.1109/TIE.2002.807659
M3 - RGC 21 - Publication in refereed journal
SN - 0278-0046
VL - 50
SP - 171
EP - 182
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 1
ER -