FIG. 1 is a front, right isometric view of a first embodiment of a power inverter showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a front, right isometric view of a second embodiment of a power inverter showing my new design;
FIG. 8 is a front view thereof;
FIG. 9 is a rear view thereof;
FIG. 10 is a right side view thereof;
FIG. 11 is a left side view thereof;
FIG. 12 is a top view thereof;
FIG. 13 is a front, right isometric view of a third embodiment of a power inverter showing my new design;
FIG. 14 is a front view thereof;
FIG. 15 is a rear view thereof;
FIG. 16 is a right side view thereof;
FIG. 17 is a left side view thereof;
FIG. 18 is a top view thereof;
FIG. 19 is a front, right isometric view of a fourth embodiment of a power inverter showing my new design;
FIG. 20 is a front view thereof;
FIG. 21 is a rear view thereof;
FIG. 22 is a right side view thereof;
FIG. 23 is a left side view thereof; and,
FIG. 24 is a top view thereof.
The broken lines shown in FIGS. 1-24 are included for the purpose of illustrating environmental subject matter only and form no part of the claimed design. The bottom views are omitted and form no part of the claimed design.