Power conversion apparatus, and power supply apparatus

A power conversion apparatus comprising:

• a first power supply terminal and a second power supply terminal which are paired with each other;
• a third power supply terminal and a fourth power supply terminal which are paired with each other;
• 1st to nth switches (n is an integer of 2 or more) which are sequentially, electrically, and physically connected in series between the first power supply terminal and the fourth power supply terminal;
• 1st to nth rectifier devices which are sequentially, electrically, and physically connected in series between the first power supply terminal and the third power supply terminal;
• 1st to (n−1)th capacitors, wherein an Nth capacitor (N=1, 2, . . . , n−1) is physically disposed between an Nth switch side terminal between an Nth switch and a (N+1)th switch, and an Nth rectifier device side terminal between an Nth rectifier device and a (N+1)th rectifier device, and is electrically connected between the Nth switch side terminal and the Nth rectifier device side terminal;
• 1st to (n−1)th wiring inductors each in respective series connection with the 1st to (n−1)th capacitors;
• and
• an inductor in series with the second power supply terminal, the inductor storing energy by passing a current in a case where any of the 1st to nth switches is turned on, and releases the energy as a current in a case where the any of the 1st to nth switches is turned off,
• wherein the 1st to nth switches are disposed to be physically aligned with the 1st to nth rectifier devices, respectively.