Patent ID: 11887501
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. The system of claim 1, wherein the second trainer further comprises:
a rechargeable battery configured to generate a DC voltage at a DC output port of the battery;
a battery charger configured to receive AC voltage from an AC outlet and charge the rechargeable battery;
an inverter comprising a DC input port and an AC output port, the inverter of the second trainer configured to receive a DC input at the DC input port of the inverter of the second trainer and generate an AC output at the AC output port of the inverter of the second trainer;
a power distribution relay comprising:
an AC output port;
a first input port configured to receive an AC voltage;
a second input port connected to the AC output port of the inverter of the second trainer; and
a third input port configured to:
receive a DC voltage; and
connect one of the first and second inputs ports of the power distribution relay to the AC output port of the power distribution relay based on a level of the received voltage;

a switch configured to operate in at least two positions:
wherein at a first position, the switch is configured to connect the AC outlet to the first input port of the power distribution relay;
wherein at a second position, the switch is configured to disconnect the first input port of the power distribution relay from the AC outlet, to connect the DC output port of the battery to the inverter of the second trainer, and to connect the DC output port of the battery to the third input port of the power distribution relay; and

a set of one or more internal DC power supplies configured to:
receive AC voltage from the AC output port of the power distribution relay;
convert the received AC voltage to a DC voltage; and
provide the DC voltage to one or more electronic circuits on the second trainer.