Electric vehicle charging system
AssigneeCyberSwitchingPatents, LLC
InventorsCharles H. Reynolds, Ronald L. Silorio
Life of this patent
Estimating the term…
Abstract
An electric vehicle (EV) charging system includes a number of output connections (e.g., cables). Each of the output connections is connected to at least one head, and each head can be connected concurrently to an EV. A controller can direct a charging current, delivered over a dedicated circuit from an electric power supply, to a first one of the output connections if a first EV is connected to a head connected to the first one of the output connections. Then, the charging current to the first one of the output connections can be stopped, switched to a second one of the output connections, and restarted if a second EV is connected to a head connected to the second one of the output connections.
Claims15
An electric vehicle (EV) charging system, comprising:
- a controller comprising a central processing unit and implemented on a single printed circuit board, the printed circuit board having a lower voltage side that powers the central processing unit (CPU), the printed circuit board also having a higher voltage side that receives an alternating current (AC) charging current delivered over a dedicated circuit from an AC power supply, wherein the CPU receives power from a lower voltage power supply that is separate from the AC power supply and that is not powered by the AC power supply, and wherein a voltage from the lower voltage power supply is less than a voltage from the AC power supply;
- and
- a plurality of output connections coupled to the controller, wherein each of the output connections is couplable to at least one head of a plurality of heads that are connectable to EVs, and wherein the output connections are numbered in sequence from one to N, where N is an integer;
- wherein the controller directs the AC charging current from the higher voltage side of the printed circuit board to a first one of the output connections if a first EV is connected to a head coupled to the first one of the output connections, wherein further the charging current to the first one of the output connections is subsequently stopped, switched to a second one of the output connections, and restarted if a second EV is connected to a head coupled to the second one of the output connections.
A controller for an electric vehicle (EV) charging system, the controller comprising:
- a processor, wherein the controller is implemented on a single printed circuit board having a lower voltage side that powers the processor, wherein the printed circuit board also has a higher voltage side that receives an alternating current (AC) charging current delivered over a dedicated circuit from an AC power supply, wherein the processor receives power from a lower voltage power supply that is separate from the AC power supply and that is not powered by the AC power supply, and wherein a voltage from the lower voltage power supply is less than a voltage from the AC power supply;
- and
- a plurality of channels coupled to the processor, wherein each of the channels is couplable to at least one head of a plurality of heads that are concurrently connectable to EVs, and wherein the channels are numbered in sequence from one to N, where N is an integer;
- wherein the controller directs the AC charging current from the higher voltage side of the printed circuit board to only one of the channels at a time if multiple EVs are concurrently connected to the heads, wherein a charging current is provided to a first one of the channels, the charging current to the first one of the channels is then turned off, and a charging current is then provided to a second one of the channels in accordance with a charging procedure.
Dependencies are inferred from the claim text.