SWITCHING POWER SUPPLY APPARATUS, DRIVING METHOD FOR SWITCHING POWER SUPPLY, AND DRIVING PROGRAM FOR SWITCHING POWER SUPPLY

摘要

The present invention is aimed at providing a switching power supply apparatus enabling to avoid enhancement of noise of a specific frequency component. The present invention is a switching power supply apparatus provided with: a switching power supply configured to perform switching of input from a primary power source and thereby output a secondary power source; and a noise frequency analysis device configured to analyze frequency components of noise included in output of the primary power source or of the secondary power source, and accordingly cause the switching power supply to perform switching at a different frequency from a frequency of a maximum noise amplitude among the frequency components.