Power supply device

[0001]FIG. 1 is a front perspective view of a power supply device;

[0002]FIG. 2 is a back perspective view of the power supply device;

[0003]FIG. 3 is a front view of the power supply device;

[0004]FIG. 4 is a back view of the power supply device;

[0005]FIG. 5 is a right side view of the power supply device;

[0006]FIG. 6 is a left side view of the power supply device;

[0007]FIG. 7 is a top view of the power supply device; and,

[0008]FIG. 8 is a bottom view of the power supply device.

[0009]The dash-dash broken lines illustrate portions of the article that form no part of the claimed design.