Systems and methods for voltage conversion

A method, comprising:

• converting an electrical current from a primary voltage to a secondary voltage with at least two power converters that are secured to exterior surfaces of a casing;
• conducting the electrical current at the secondary voltage from the power converters with a stack that includes at least two busbars enclosed within a cavity of the casing, wherein each of the at least two busbars within the stack are electrically isolated from each other and from the casing, wherein a first power converter of the at least two power converters is electrically coupled to a first busbar of the at least two busbars and not electrically coupled to a second busbar of the at least two busbars, and a second power converter of the at least two power converters is electrically coupled to the second busbar and not electrically coupled to the first busbar;
• and
• supplying the electrical current at the secondary voltage to an electrical system.

A vehicle, comprising:

• a rechargeable energy storage system (RESS) configured to output an electrical current at a primary voltage;
• a power conversion system comprising:
• at least two power converters configured to convert the electrical current from the primary voltage to a secondary voltage;
• an elongated casing having walls and a cavity defined therebetween, wherein the at least two power converters are secured to exterior surfaces of the elongated casing;
• a stack that includes at least two busbars enclosed within the elongated casing that are each configured to conduct the electrical current at the secondary voltage from the at least two power converters, wherein each of the at least two busbars within the stack are electrically isolated from each other and from the elongated casing with isolation layers that are disposed between each of the at least two busbars and between the at least two busbars and the elongated casing, wherein a first power converter of the at least two power converters is electrically coupled to a first busbar of the at least two busbars and not electrically coupled to a second busbar of the at least two busbars, and a second power converter of the at least two power converters is electrically coupled to the second busbar and not electrically coupled to the first busbar;
• and
• terminals secured to the elongated casing and configured to conduct the electrical current at the secondary voltage from the at least two busbars;
• and
• an electrical system configured to provide the electrical current at the secondary voltage from the at least two busbars to one or more accessories of the vehicle.