One or more systems and methods for providing selective isolation between a grid and an electric vehicle (EV) during charging is disclosed. An isolation component may be located between input nodes, and one or more output nodes. The isolation component may be connected to the nodes by switches that allow selecting which one or more nodes may be used to supply power for charging the EV battery. Other switches, such as relays, may be used to bypass the isolation component when the grid is not connected. Further switches may isolate part of the system from the grid to connect the isolated power source to the EV, and in parallel connect the isolation component to the grid for combined power EV battery charging. The isolation component may be a direct current (DC) to DC isolation transformer. The isolation component may be one or more electrical energy storage devices with switches in series surrounding each device, where the switches may be operated in a break-before-make transition.
ELECTRIC-VEHICLE CHARGER ISOLATION
ISOLIERUNG EINES LADEGERÄTS FÜR ELEKTROFAHRZEUG
ISOLATION DE CHARGEUR DE VÉHICULE ÉLECTRIQUE
2024-07-17
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |