| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology, in a power system in which the oscillation operation of a switching power source is switched by pulses, of suppressing the occurrence of defects due to a disturbance noise.SOLUTION: A power system includes: a switching power source that has an ON mode in a state of oscillation and an OFF mode in a state where the oscillation is suspended; a mode control unit that creates a mode designation signal designating an operation mode of the switching power source; and a power source control unit that controls the oscillation operation of the switching power source according to the mode designation signal. A mode control unit executes output processing (S135) of outputting continuous pulse signals continuing in a predetermined period, as the mode designating signal, to a mode designating terminal of the power source control unit during a period of one of the ON mode and OFF mode, and control processing (S150) of limiting the output of the continuous pulse signals during a period of the other mode. |
