Electric vehicle solar charging system

An electric vehicle (EV) charging system, comprising:

• a first converter electrically connected to a first switch and configured to receive a first input current, the first converter further configured to generate a first output current based on the first input current and to output the first output current through the first switch when the first switch is closed;
• a second converter electrically connected to a second switch and configured to receive a second input current, the second converter further configured to generate a second output current based on the second input current and to output the second output current through the second switch when the second switch is closed;
• a third converter electrically connected to a third switch and configured to receive a third input current, the third converter further configured to generate a third output current based on the third input current and to output the third output current through the third switch when the third switch is closed;
• a fourth converter configured to receive the first output current when the first switch is closed, the second output current when the second switch is closed, and the third output current when the third switch is closed, the fourth converter further configured to output a fourth output current based on one or more of the first output current, the second output current, and the third output current;
• wherein the EV charging system is configured to receive the first input current delivered from a renewable energy source as direct current and to output the fourth output current as direct current for charging an electric vehicle energy source;
• wherein the EV charging system further comprises an energy storage electrically and communicably connected to the second converter and configured to generate the second input current and an inverter electrically connected to the first converter and the renewable energy source;
• wherein the EV charging system further comprises a third output current switch and an inverter switch,
• wherein the second converter is bidirectional;
• wherein the fourth converter is bidirectional;
• and
• wherein the inverter is electrically connected to the first converter and the renewable energy source through the inverter switch, the inverter switch configured to alternate between electrically connecting the inverter with the first converter and the renewable energy source, and electrically connecting the inverter with the second converter and the energy storage such that the inverter is not electrically connected to the first converter and the renewable energy source;
• wherein the third converter is electrically connected to the fourth converter through the third output current switch, the third output current switch configured to alternate between electrically connecting the third converter and the fourth converter when the third output current switch is closed and electrically disconnecting the third converter and the fourth converter such that that the third converter is not electrically connected to the fourth converter when the third output current switch is open;
• and
• wherein the EV charging system has a charging mode and a discharging mode,
• wherein in the charging mode, the EV charging system is configured such that:
• the inverter switch electrically connects the inverter to the first converter and the renewable energy source;
• and
• the third output current switch is closed, and
• wherein in the discharging mode, the EV charging system is configured such that:
• the inverter switch electrically connects the inverter to the second converter and to the energy storage;
• and
• the third output current switch is open;
• wherein the EV charging system, for discharging an EV, is further configured to receive a discharging input current delivered from the electric vehicle energy source and to output an inverter output current.

An electric vehicle (EV) charging system, comprising:

• a first converter electrically connected to a first diode and configured to receive a first input current, the first converter further configured to generate a first output current based on the first input current and to output the first output current through the first diode;
• a second converter electrically connected to a second diode and configured to receive a second input current, the second converter further configured to generate a second output current based on the second input current and to output the second output current through the second diode;
• a third converter electrically connected to a third diode and configured to receive a third input current, the third converter further configured to generate a third output current based on the third input current and to output the third output current through the third diode, wherein the third converter, through the third diode, is electrically connected to a third output current switch;
• a fourth converter configured to receive the first output current, the second output current, and the third output current when the third output current switch is closed, the fourth converter further configured to output a fourth output current based on one or more of the first output current, the second output current, and the third output current;
• wherein the EV charging system is configured to receive the first input current delivered from a renewable energy source as direct current and to output the fourth output current as direct current for charging an electric vehicle energy source;
• wherein the EV charging system further comprises an inverter switch,
• wherein the second converter is bidirectional;
• wherein the fourth converter is bidirectional;
• and
• wherein an inverter is electrically connected to the first converter and the renewable energy source through the inverter switch, the inverter switch configured to alternate between electrically connecting the inverter with the first converter and the renewable energy source, and electrically connecting the inverter with the second converter and an energy storage such that the inverter is not electrically connected to the first converter and the renewable energy source;
• wherein the third converter is electrically connected to the fourth converter through the third output current switch, the third output current switch configured to alternate between electrically connecting the third converter and the fourth converter when the third output current switch is closed and electrically disconnecting the third converter and the fourth converter such that that the third converter is not electrically connected to the fourth converter when the third output current switch is open;
• and
• wherein the EV charging system has a charging mode and a discharging mode,
• wherein in the charging mode, the EV charging system is configured such that:
• the inverter switch electrically connects the inverter to the first converter and the renewable energy source and
• the third output current switch is closed, and
• wherein in the discharging mode, the EV charging system is configured such that:
• the inverter switch electrically connects the inverter to the second converter and to the energy storage and
• the third output current switch is open;
• wherein the EV charging system, for discharging an EV, is further configured to receive a discharging input current delivered from the electric vehicle energy source and to output an inverter output current.