Title :
On the low-frequency noise of DC-to-DC converters with random-switching control
Author :
Tanaka, Tetsuro ; Ninomiya, Tamotsu ; Yoshida, Hiroshi
Author_Institution :
Dept. of Electr. & Electron. Eng., Kagoshima Univ., Japan
fDate :
30 Oct-3 Nov 1994
Abstract :
The low-frequency output noise that is caused by introducing random-switching control into the DC-to-DC power converter is discussed quantitatively. A modified power converter model involving the unintended effect of random switching is derived from the consideration of noise-generation mechanisms. After a theoretical analysis based on the model, it is clarified that the magnitude of output noise is in proportion to the variance of switching interval. Experimental results from a buck-type power converter are compared with those obtained theoretically, so that the validity of the theoretical results is confirmed
Keywords :
DC-DC power convertors; circuit noise; circuit testing; network analysis; power system harmonics; switching circuits; DC-to-DC power converter; LF noise; buck-type power converter; harmonics; magnitude; model; noise-generation mechanisms; random-switching control; switching interval variance; Analysis of variance; Character generation; DC-DC power converters; Filters; Low-frequency noise; Noise figure; Noise generators; Surges; Switching converters; Switching frequency;
Conference_Titel :
Telecommunications Energy Conference, 1994. INTELEC '94., 16th International
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-2034-4
DOI :
10.1109/INTLEC.1994.396630
