| 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 supply detection unit that detects that supply of a power from an AC power source has started; a mode control unit that creates a pulse signal designating an operation mode of a switching power source; and a power control unit that controls the oscillation operation of the switching power source according to the pulse signal. The power control unit executes oscillation processing (S312) of oscillating the switching power source when receiving the input of the pulse signal from the mode control unit during the suspension of the oscillation, oscillation suspension processing (S350) of suspending the oscillation when receiving the input of the pulse signal from the mode control unit during the oscillation, and disabling processing (step S315: NO) of disabling the input of the pulse signal for a predetermined time when the supply detection unit has detected the start of supply of a power from the AC power source. |
