Title:
POWER SUPPLY DEVICE, AIR CONDITIONER, AND CONTROL METHOD FOR THE SAME
Document Type and Number:
Japanese Patent JP2023149081
Kind Code:
A
Abstract:
To provide a power supply device capable of detecting miswiring without causing a failure of an apparatus even in the presence of any miswiring.SOLUTION: The power supply device includes a first input conversion unit, a first switching power supply circuit, a second input conversion unit, a second switching power supply circuit, and protection means. The first input conversion unit has a neutral line connected to one of three phase power supply lines and converts AC power to DC power. The first switching power supply circuit supplies power needed to drive and control an inverter on the basis of DC power to be input. The second input conversion unit has a neutral line connected to the other one of the three phase power supply lines and converts AC power to DC power. The second switching power supply circuit supplies power needed to drive and control apparatuses other than the inverter on the basis of DC power to be input.SELECTED DRAWING: Figure 1
Inventors:
NONTAWAT RUJIRAWARODOM
ENDO KENJI
ENDO KENJI
Application Number:
JP2022057443A
Publication Date:
October 13, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
FUJITSU GENERAL LTD
International Classes:
H02M7/48
Attorney, Agent or Firm:
田中 秀▲てつ▼
Tetsuya Mori
Tetsuya Mori