There is provided a transformer circuit 300 for an electric vehicle. The transformer circuit 300 comprises an input 311 for receiving electrical energy; an output 321 for providing electrical energy to an electrical bus of the vehicle at an output voltage; and a transformer 310 disposed between the input and the output. The transformer 310 comprises a primary winding 312 connected to the input and a secondary winding 314 connected to the output. The input comprises an AC charging input 330, an ACDC converter 340 configured to receive electrical energy from the AC charging input and provide electrical energy to the primary winding; and a DC charging input 360 arranged between the ACDC converter and the primary winding. The DC charging input (560, Fig. 5) is configured to receive electrical energy from a DC source and provide electrical energy to the primary winding. The converter may have a totem pole topology. The output may be connected to vehicle systems including traction batteries or low voltage systems. The transformer may have additional secondaries at different voltages, and may operate in an omnidirectional manner.


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    Title :

    Electrical vehicle circuitry


    Contributors:

    Publication date :

    2023-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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



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