New Energy Vehicle Motor Drive Solution - BYD IGBT/SiC Power Modules

Application

Description

New energy vehicle motor drive system solution based on BYD IGBT and SiC MOSFET power modules, covering 400V/800V platforms, supporting 75kW-200kW power levels.

Core Advantages

High Efficiency IGBT solution efficiency ≥98%, SiC solution efficiency ≥98.5%, reducing energy consumption and extending driving range

Automotive Grade Reliability All power modules are AEC-Q101 qualified, meeting ISO 26262 functional safety requirements

Full Platform Coverage Products cover 400V and 800V voltage platforms, supporting passenger vehicles to commercial vehicles

Technical Support Complete gate drive design, thermal management solutions, and EMC optimization guidance

Mass Production Verified Large-scale mass production verification in BYD's own vehicles, reliable quality

Recommended Bill of Materials (BOM)

Item	Part Number	Description	Quantity	Datasheet
1	BG300F08A13L5	750V 300A IGBT module for 400V platform main drive	6	📄 Download
2	BG150G12F13L4	1200V 150A IGBT module for 800V platform main drive	6	📄 Download
3	BM600F12B34U2	1200V 400A SiC module for high-performance 800V systems	6	📄 Download
4	BG400F08A13L5	750V 400A IGBT module for high-power commercial vehicle main drive	6	📄 Download

Applications

Battery Electric Vehicles (BEV)

Plug-in Hybrid Electric Vehicles (PHEV)

Commercial Vehicle Electric Drive Systems

Electric Forklifts/Special Vehicles

Technical Specifications

Voltage Platform

400V/800V

Power Range

75kW-200kW

Peak Efficiency

≥98.5%

Switching Frequency

10-20kHz(IGBT)/50-100kHz(SiC)

Operating Temperature

-40°C ~ +85°C

Protection Class

IP67

Customer Success Stories

Major New Energy Vehicle OEM

New Energy Vehicles |

Challenge

Developing 150kW/800V electric drive system requiring high efficiency and reliability

Solution

Adopted BG150G12F13L4 IGBT module with optimized gate drive and thermal management design

Results

System efficiency reached 98.2%, passed all automotive tests, now in mass production

Commercial Vehicle Manufacturer

Commercial Vehicles |

Challenge

Developing 200kW/400V commercial vehicle electric drive requiring high power and overload capability

Solution

Adopted BG400F08A13L5 high-current IGBT module with liquid cooling system design

Results

Peak power 220kW, continuous power 200kW, meeting commercial vehicle heavy-load requirements

FAE Expert Insights

Senior FAE

Applications Engineer

10+ years

Professional Insights

In new energy vehicle motor drive applications, the performance and reliability of BYD power modules have been fully verified. Key design points: (1) Select 750V or 1200V modules based on voltage platform. (2) Thermal design must have sufficient margin, especially for continuous high-power operation. (3) Gate drive design must be standardized to avoid false turn-on. (4) PCB layout must minimize parasitic inductance. Our team has extensive experience in electric drive system design and can provide full technical support to customers.

Key Takeaways

Select appropriate power module specifications based on voltage platform
Thermal design must fully consider continuous operation and worst-case scenarios
Gate drive and PCB layout are critical for reliability
Make full use of FAE resources to reduce development risks

Decision Framework

Steps:

Determine voltage platform (400V or 800V)
Calculate power requirements and select module current rating
Design thermal management system with adequate margin
Design gate drive circuit with proper protection
Optimize PCB layout for minimal parasitic inductance

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

How to select power modules for 400V and 800V platforms?

For 400V platforms, we recommend 750V IGBT modules (such as BG300F08A13L5) to provide sufficient voltage margin. For 800V platforms, we recommend 1200V modules, with options for IGBT (BG150G12F13L4) or SiC (BM600F12B34U2). SiC offers higher efficiency but at a higher cost, while IGBT provides better cost-effectiveness.

Contact our FAE team for module selection based on your power level, efficiency requirements, and cost budget.

What are the main differences between IGBT and SiC solutions?

Main differences: (1) Efficiency: SiC is 0.5-1% higher. (2) Switching frequency: SiC supports 50-100kHz, IGBT is suitable for 10-20kHz. (3) System size: SiC reduces volume by 30-40%. (4) Cost: SiC has higher module cost. We recommend SiC for high-efficiency, high-power-density applications, and IGBT for cost-sensitive applications.

Evaluate the balance between efficiency gains and cost increase. Our FAE can provide ROI analysis.

How to design thermal management for power modules?

Thermal management design points: (1) Heatsink thermal resistance <0.15K/W (IGBT) or <0.10K/W (SiC). (2) Phase change materials or high-performance thermal grease recommended. (3) Liquid cooling for high-power continuous operation. (4) Thermal simulation for worst-case verification. We provide thermal simulation models and design guidance.

Provide your cooling conditions and operating requirements, our FAE can perform thermal calculations and heatsink selection.

How to design gate drive circuits?

Gate drive design: (1) IGBT: +15V/-8V, gate resistor 5-15Ω. (2) SiC: +18V/-4V, gate resistor 2-8Ω. (3) Use isolated gate drivers with CMTI >100V/ns. (4) Gate loop inductance <10nH. (5) Active Miller clamp configuration. We provide recommended driver models and reference circuit designs.

Contact FAE for gate drive reference design and PCB layout guidelines.

Do you provide reference designs and evaluation boards?

Yes, we provide complete reference designs: (1) 75kW/400V reference design (based on BG300F08A13L5). (2) 150kW/800V reference design (based on BG150G12F13L4). (3) 200kW high-performance reference design (based on BM600F12B34U2). Includes schematics, BOM, PCB files, and control software.

Contact sales for evaluation boards and reference design materials.

What is the development cycle and technical support?

Development cycle: (1) Evaluation phase: 2-4 weeks (using evaluation boards). (2) Prototype design: 4-8 weeks. (3) Testing and verification: 4-6 weeks. Technical support: (1) FAE on-site support. (2) Online technical support. (3) Thermal simulation and EMC analysis. (4) Failure analysis support.

Provide your project schedule, we will develop a supporting technical support plan.