Patent ID: 11884177
Assignee: ATOM POWER, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 22:
23. An electric vehicle (EV) charging system including a plurality of electric vehicle supply equipment (EVSE) units, an EV charge control and circuit protection method, comprising: providing an air-gap disconnect unit having a closeable air gap connected in series with a solid-state switch, between input line-side terminals of each EVSE unit; configuring each EVSE unit in one of three possible states, wherein the possible states comprise; an ON state during which the closeable air gap of the air gap disconnect unit is closed and the solid-state switch is ON; a STANDBY state during which the closeable air gap of the air gap disconnect unit is closed and the solid-state switch is OFF; and an OFF state during which the closeable air gap of the air gap disconnect unit is open and the solid-state switch is OFF; allocating or apportioning a supply current among the plurality of EVSE units, each EVSE unit configured to limit, control and adjust a maximum allowable charging current available for supply to an associated EV charging station and plug-in electric vehicle (PEV); and reallocating or reapportioning the supply current among the EVSE units as other PEVs plug into other EV charging stations of the EV charging system to charge and as other PEVs complete charging and unplug from other EV charging stations of the EV charging system, wherein each EVSE unit is configured to provide circuit protection to its associated EV charging station and PEV by way of the airgap disconnect unit and the solid-state switch of the plurality of EVSE units, and one or more EVSE units of the plurality of EVSE units are configured to adjust their maximum allowable charging currents depending on how the supply currents is reallocated or reapportioned.