Power Electronics / Power Management


High-voltage DC-DC converter for electric vehicles

28 July 2021 Power Electronics / Power Management

By understanding the needs of its performance-driven customers in the market of electrification of air, land and sea vehicles and systems, Crane Aerospace & Electronics engineers have designed and developed a versatile, modular high-voltage DC-DC converter. The converter delivers a wide input range (400-800 V) that supports more-electric, hybrid-electric and all-electric platforms. It supports multiple cooling options and converters can be paralleled to match a customer’s power needs.

The device converts high-voltage source power into a power system’s 28 V d.c. bus. The converter is 97% efficient and packs 4 kW of power into a small package. The converter’s powertrain uses a highly efficient topology to minimise size, weight and dissipation.

Multiple modules are incorporated into the DC-DC converter. The input module serves as the high-voltage electrical interface to the aircraft. It contains functions that ensure compliance with RF emissions, RF susceptibility, lightning and inrush current control. The supervisory module interfaces with aircraft control and monitoring functions and provides protection and surveillance functions for the DC-DC converter.


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