Patent ID: 11967909
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The power conversion device according to claim 9, further comprising:
a first mode configured to perform the first conversion operation and the second conversion operation; and
a second mode configured to perform another conversion operation different from the first conversion operation and the second conversion operation,
when an output frequency of the PWM-controlled inverter unit becomes higher than a first threshold value from a state of the first mode in which the output frequency of the PWM-controlled inverter unit is equal to or less than the first threshold value, the first mode transitioning to the second mode, and
when the output frequency of the PWM-controlled inverter unit becomes equal to or less than a second threshold value from a state of the second mode in which the output frequency of the PWM-controlled inverter unit is higher than the second threshold value, the second mode transitioning to the first mode, and
the second threshold value being
equal to the first threshold value or
lower than the first threshold value by a predetermined value.