Patent ID: 11909258
Assignee: SCHNEIDER ELECTRIC IT CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power supply comprising:
an input configured to receive input AC power;
an output configured to provide output AC power to a load;
at least one power converter coupled to the input and configured to convert the input AC power into the output AC power; and
a controller coupled the at least one power converter, the controller being configured to:
adjust at least one parameter of the output AC power provided by the at least one power converter,
detect, in response to adjusting the at least one parameter of the output AC power, at least one of an adjusted input AC power or an adjusted output AC power, and
determine that a fault has occurred based on the at least one of the adjusted input AC power or the adjusted output AC power, wherein the fault provides an indication that contacts of at least one relay included in the power supply are welded or shorted together.