Title :
Experimental confirmation of frequency correlation for bifurcation in current-mode controlled buck-boost converters
Author :
Cheng, Ka Wai Eric ; Liu, Mingjian ; Ho, Yiu Lun
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
Abstract :
Frequency scaling in pulse-width modulated buck-boost power converters can be used to predict the first bifurcation point at various frequency operations. This letter first derives novel frequency correlation for the power converter. This is then examined by experimental results at high-frequency operation.
Keywords :
DC-DC power convertors; PWM power convertors; bifurcation; chaos; correlation methods; electric current control; DC-DC power converter; buck-boost converters; chaos bifurcation; current-mode control; frequency correlation; pulse-width modulated power converters; Bifurcation; Circuit simulation; DC-DC power converters; Equations; Frequency conversion; Impedance; Inductance; Pulse modulation; Pulse width modulation converters; Voltage;
Journal_Title :
Power Electronics Letters, IEEE
DOI :
10.1109/LPEL.2004.825548
