Power source control device and power source control method

A power source control device that performs PWM control on a plurality of power source units that repeat an ON operation and an OFF operation in cycles having a predetermined PWM period, the power source control device comprising:

• a generation unit configured to generate operation data for the entire predetermined PWM period, the operation data determining whether to cause the individual power source units to perform the ON operation or the OFF operation in cycles having a predetermined period that is shorter than the predetermined PWM period;
• an output unit configured to output the operation data generated by the generation unit to the plurality of power source units in cycles of the predetermined period;
• a storage unit configured to store the operation data generated by the generation unit;
• and
• a transferring unit configured to transfer operation data that corresponds to the predetermined period, out of the operation data stored in the storage unit, to the output unit in synchronization with the predetermined period.