12 stories tagged high-voltage on EV Digest.
TDK has launched its new HVC28 and HVC29 series of gas-filled high-voltage DC contactors designed for next-generation electrified powertrains and industrial applications. The automotive-grade HVC28 supports switching voltages up to 1,000 volts DC, targeting the strict safety and isolation requirements of modern 800V-plus EV battery packs and fast-charging systems.
DC fast chargers offer rapid electric vehicle replenishment but operate at significantly higher voltages, introducing unique safety considerations. Manufacturers are continually developing advanced protection systems to mitigate potential risks associated with these powerful charging speeds.
Sensata Technologies has introduced OmniNode, an innovative, off-the-shelf high-voltage power distribution unit designed for battery-electric commercial vehicles. This solution consolidates critical functions like DC charging, switching, circuit protection, and diagnostics into a single, compact system. Built using Sensata's own components, the OmniNode aims to simplify power management and enhance reliability for a range of commercial EV applications.
As battery electric vehicles (BEVs) continue to evolve with higher charging speeds, increased energy storage, and bidirectional power capabilities, the demands on their high-voltage DC circuit protection systems are intensifying. Traditional fuse and contactor setups are proving less ideal for these advanced architectures, highlighting the need for innovative, resettable solutions. These new protection mechanisms are crucial for ensuring safety and reliability in future EV designs.
Munich Electrification has unveiled the ME SSR, a solid-state battery disconnect unit designed to enhance the safety and performance of electric trucks and buses. This innovative component replaces traditional mechanical contactors and pyrotechnic fuses within high-voltage systems, offering a more reliable and efficient connection between the battery and the vehicle's drivetrain.
High-voltage electronics are crucial for electric vehicles, but their reliability can be compromised by environmental factors like humidity. Danish researchers are developing simulation tools to identify and mitigate corrosion on circuit boards, which can lead to critical failures in EV components.
Magnachip Semiconductor is expanding into the high-voltage silicon carbide (SiC) market by licensing Navitas Semiconductor's GeneSiC technology. This partnership enables Magnachip to develop and produce SiC products for power conversion applications in electric vehicles, among other sectors. The licensed Gen 4 and Gen 5 GeneSiC Trench-Assisted Planar (TAP) technologies target voltage requirements from 1200 V and above, crucial for efficient EV power systems.
Advanced Test Equipment (ATEC) is now renting out AE Techron's HVR2000RG, a high-voltage, high-current amplifier. This specialized equipment is crucial for testing high-power EV components, as well as aerospace and defense applications. The amplifier delivers up to 2,000 V peak DC voltage, enabling comprehensive validation for advanced electric powertrains and charging systems.
As electric vehicle battery systems advance with higher voltages and greater energy density, ensuring safety during critical fault events like short circuits or crashes becomes increasingly complex. New active and passive isolation strategies are emerging to address these challenges, crucial for preventing escalating risks within milliseconds.
Sensata Technologies has introduced its Active + Passive PyroFuse, designed to provide superior high-voltage protection in electric vehicles, charging infrastructure, and commercial transportation. This innovative device integrates both an active, system-triggered interruption and a passive, current-driven trigger within a single unit, offering a robust safety solution. The STPS500P series enhances occupant safety and protects vital EV components by rapidly isolating power during fault conditions.
Webasto has introduced the 900 EX Power Bridge, an innovation allowing laboratories to increase the voltage capacity of their existing 900 EX battery test units. This new technology combines two test units into a single system, achieving a robust 1,500 V and 500 kW rating without requiring new hardware purchases. It's designed to streamline high-voltage battery development and validation processes.
A new I-CAR course aims to standardize electric vehicle repair training, providing automotive technicians with essential skills for safely handling high-voltage systems. Supported by major vehicle manufacturers, this initiative addresses critical safety gaps in the collision repair industry as EV adoption grows.
