Vicor Corporation has introduced three automotive-grade power modules for 48V electric vehicle systems, targeting OEM and tier one production in 2025. The AEC-Q100 certified BCM6135, DCM3735 and PRM3735 modules have completed Production Part Approval Process with automotive customers and offer over 300 configuration options for vehicle subsystems.
The BCM6135 bus converter delivers 2.5kW at 98% efficiency, converting 800V from traction batteries to 48V for safety extra-low voltage power. With a power density of 158kW/L, it enables smaller DC-DC converters and features an 8 mega-amp per second current transient response rate, potentially replacing 25lb 48V batteries in xEV vehicles.
The DCM3735 DC-DC converter provides 2.0kW with regulated 12V output from 48V input, offering an adjustable 8-16V output range. At 300kW/L power density, it suits zonal ECU applications bridging 48V to 12V subsystems. The PRM3735 regulator handles 2.5kW of 48V power at 99.2% efficiency with 260kW/L power density, optimized for regulated 48V loads in new architectures.
These modules enable key automotive innovations including enhanced active suspension systems using 48V power, virtual 48V battery functionality reducing vehicle weight by up to 25kg and costs by $100, and simplified pre-charging that eliminates legacy contactors and resistors weighing 1kg and costing over $50. The technology supports transition to 48V zonal architecture while maintaining compatibility with 12V systems.
The modules support efficient power conversion between 800V, 400V, 48V and 12V systems with automatic power sharing capabilities. Their compact size and high efficiency help reduce overall vehicle weight while simplifying power delivery network designs across multiple automotive applications.
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