Patent ID: 11933516
Assignee: CARRIER CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H | IPC F  H

Claim 0:
1. A heating ventilation and cooling (HVAC) system comprising:
an air-conditioning unit containing a fan blower motor;
a power source including:
a multi-phase power input
an AC-DC rectifier connected to a DC-AC inverter via a DC bus,
a multi-phase power output connecting the DC-AC inverter to the fan blower motor, and
at least one redundancy power system configured to bypass at least one of the AC-DC rectifier and the DC-AC inverter; and

a controller configured to control operations of the HVAC system, the controller further configured to:
maintain the fan blower motor in a continuous operating state in response to a signal indicative of a refrigerant leak, and
activate the at least one redundancy power system in response to the presence of both a detected failure in the power source and the signal indicative of the refrigerant leak.