High Voltage Evaluation Platform for 400V EV designs

High Voltage Evaluation Platform for 400V EV designs

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By Nick Flaherty

The Automotive High Voltage Evaluation Platform (AHVEP) developed by distributor Arrow addresses a number of applications and design challenges associated with a high voltage (48V/400V) power distribution network in cars.

As the transition from combustion engines to electric vehicles (EVs) and hybrid electric vehicles (HEVs) accelerates, designers face a large number of newly emerging requirements including: battery disconnect switches, cell balancing modules, battery junction boxes, battery management controllers, DC-DC conversion, on-board charging, superchargers, traction inverters, HVAC and supercapacitors. On top of these can be added challenges such as the isolation of communications, power management, motor control, load switches and current sensing; and ensuring safety and security in the new, electrically controlled environment.

Using an automotive microcontroller with an Arm Cortex-M4F core, the platform has a modular design that allows 12V, 48V and 400V circuits to be evaluated independently. It is suitable for applications including 48V BLDC motor control, 48V battery disconnect, 400V motor control, isolated current sensors and body applications up to ASIL-B.

“Arrow’s AHVEP offers automotive developers a powerful tool with extensive capabilities,” said Michael Stoever, Arrow’s sales director for automotive in the EMEA region. “Vehicle powertrain electrification is the key industry trend currently, and this evaluation platform is able to address all levels of application, from 48V mild hybrid and plug-in hybrid electric vehicles, right up to 400V EVs.”

The platform uses the CYT2B95CAS Traveo 2 32-bit ARM Cortex-M4F microcontroller from Cypress/Infineon and TLI4971 Miniature Coreless Magnetic Current Sensor from Infineon as well as the TLE9180 High Power 3 Phase Bridge Driver, TLE9471ES CAN FD SB and TLE7259 LIN Transceiver. It also uses Infineon’s  2ED4820-EM dual Channel high side gate driver and IPB65R110CFDA CoolMOS 650V and IAUT300N10S5N015 OptiMOS 100V MOSFETs as well as the Si88241 Quad Digital Isolators with DC-DC Converter, Si8642 Digital Isolator 5000Vrms 4 Channel 150Mbps and Si8239 Isolated Driver with Safety Features from Silicon Labs.

More information on the AHVEP is at

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