Snubber circuit and power conversion apparatus

A snubber circuit comprising:

• N (N:
• integer equal to or greater than 1) parallel charging paths each having a positive-side capacitor, a first diode, and a negative-side capacitor sequentially connected in series between a positive-side terminal and a negative-side terminal, and configured to cause current to flow from a side of the positive-side terminal toward a side of the negative-side terminal;
• (N+1) parallel discharging paths each having a second diode connected between the negative-side terminal or the negative-side capacitor of a kth charging path (k:
• integer equal to or greater than 0 and smaller than N) of the N charging paths and the positive-side capacitor of a (k+1)th charging path of the N charging paths or the positive-side terminal, and configured to cause current to flow from the side of the negative-side terminal toward the side of the positive-side terminal via at least one of the negative-side capacitor and the positive-side capacitor;
• and
• at least one auxiliary capacitor each being connected in parallel to at least one of the N first diodes included on the N charging paths and the (N+1) second diodes included on the (N+1) discharging paths.