The Swiss firm BRUSA is now offering its electric-drive components, including motors, controllers, power electronics, battery packs and chargers, in 750-volt versions, which are designed for commercial vehicles and applications demanding high output.
Increasing the voltage allows the current to be reduced with no loss of performance. This means that cables can be thinner and bending radii smaller, leading to weight and material savings.
While doubling the voltage offers advantages, it is a challenge to control the increased electric fields. BRUSA uses its resonant SoftSwing topology to minimize switching loss and achieve optimal electromagnetic compatibility.
BRUSA products now available in 750 V versions include ten-pole hybrid synchronous motors, universal inverters, high-voltage distributors, DC/DC converters, liquid-cooled 26.6 kWh batteries, 3.7 kW chargers and liquid-cooled 22 kW on-board fast chargers.
Source: Bruza via Green Car Congress