EV Power Delivery Solution

Application

Description

High-efficiency power delivery solutions for electric vehicles using Vicor's automotive-grade DC-DC converters and power modules.

Core Advantages

High Efficiency Up to 97% efficiency reduces heat generation and extends driving range through improved power conversion.

Automotive Qualified Full AEC-Q100/Q200 qualification and IATF 16949 manufacturing ensures reliability for automotive applications.

Compact Design High power density modules enable compact, lightweight power systems that don't compromise vehicle space or range.

Wide Temperature Range Automotive-grade modules operate from -40°C to +125°C, ensuring reliable performance in extreme environmental conditions.

Extended Range Superior conversion efficiency translates directly to extended driving range, a critical factor for EV adoption and customer satisfaction.

Recommended Bill of Materials (BOM)

Item	Part Number	Description	Quantity	Datasheet
1				📄 Download
2				📄 Download

Technical Specifications

Input Voltage

48V to 800V range

Output Power

100W to 10kW+

Efficiency

Up to 97%

Qualifications

AEC-Q100/Q200, IATF 16949

Operating Temp

-40°C to +125°C

Thermal

Integrated thermal management

Customer Success Stories

Leading EV Manufacturer

Automotive | 48V mild hybrid power system

Challenge

Needed compact, high-efficiency power conversion for 48V mild hybrid with limited space. Traditional solutions were too bulky and heavy, impacting vehicle range and performance.

Solution

Deployed ChiP modules for 48V power distribution and 12V charging. Used automotive-qualified modules with integrated thermal management for under-hood mounting.

Results

Electric Bus Manufacturer

Commercial Vehicles | High-voltage to 12V conversion for bus electrical systems

Challenge

Required isolated, reliable 12V power from high-voltage battery for bus accessories. System needed to meet strict automotive reliability standards with 5-year warranty requirements.

Solution

Implemented isolated DC-DC converters with automotive qualifications. Selected AEC-Q100 qualified modules with wide temperature range for harsh commercial vehicle environments.

Results

FAE Expert Insights

Senior FAE

Applications Engineer

10+ years

Professional Insights

Key considerations: Automotive qualification (AEC-Q100/Q200) is essential for EV applications; Wide temperature range (-40°C to +125°C) critical for under-hood and battery pack mounting; Efficiency directly impacts driving range in EVs; High power density enables compact, lightweight designs; EMI compliance necessary for vehicle electrical systems. Common pitfalls to avoid: Not specifying automotive-qualified modules for production vehicles; Insufficient thermal design for extreme temperature conditions; EMI issues from improper filtering and layout; Not accounting for vibration and shock requirements; Insufficient protection against transients and load dump.

Key Takeaways

Automotive qualification (AEC-Q100/Q200) is essential for EV applications
Wide temperature range (-40°C to +125°C) critical for under-hood and battery pack mounting
Efficiency directly impacts driving range in EVs
High power density enables compact, lightweight designs
EMI compliance necessary for vehicle electrical systems

Decision Framework

Steps:

Evaluate requirements
Compare solutions
Consult FAE

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

What automotive qualifications do Vicor EV modules have?

Vicor automotive qualifications: AEC-Q100: Stress tests for integrated circuits in automotive environments

AEC-Q200: Stress tests for passive components

IATF 16949: Quality management system for automotive production. Testing includes: Temperature cycling

High temperature reverse bias

Mechanical shock

Vibration

Humidity

ESD

Lifetest. All Vicor automotive modules are fully qualified and documented with PPAP support. Contact us for specific qualification reports and documentation.

What is the operating temperature range for automotive modules?

Automotive module temperature specs: Operating temperature: -40°C to +125°C case temperature typical

Storage temperature: -55°C to +125°C

Thermal shutdown: Typically at +125°C to +150°C. Derating considerations: Full power available up to 85-100°C depending on model

Power derating required above this range

Thermal design must account for worst-case ambient. Underhood mounting: Requires full temperature range capability

Consider heat sources and airflow. Battery pack mounting: May have lower ambient but thermal management needed.

How do I design thermal management for EV power modules?

EV thermal management design: Calculate power dissipation at worst-case conditions

Consider ambient temperature in vehicle location

Mount directly to chassis or dedicated heatsink. Cooling options: Natural convection for low-power modules

Forced air from vehicle cooling system

Direct liquid cooling for high-power

Integration with battery thermal management. Design process: Identify worst-case power and temperature

Calculate required thermal resistance

Select appropriate cooling method

Validate with testing. Vicor provides thermal models for design simulation.

What protection features are needed for EV applications?

Essential EV protection features: Input transients: TVS diodes for load dump protection

Reverse polarity: Diodes or mosfets for input protection

Overvoltage: Input overvoltage lockout

Overcurrent: Current limiting and fuse protection

Overtemperature: Thermal shutdown protection. Vehicle integration: Ground offset protection

EMC protection per ISO 7637

ESD protection per ISO 10605. Vicor modules include internal protections, but external protection needed for vehicle requirements. Contact us for protection circuit recommendations.

Can Vicor modules be used in 800V EV battery systems?

800V EV system compatibility: Vicor offers modules for high-voltage applications

Input voltage must match system voltage

Isolation requirements: Consider 2,500V or 4,242V isolation for safety. Module selection: Some modules rated for up to 800V input

400V systems more common with 650V-rated modules

Always verify voltage ratings for specific application. Design considerations: Clearance and creepage for high voltage

Touch safety requirements

Battery management system integration. Vicor provides guidance for high-voltage automotive applications.