Application Scenario Confirmation
✓ Commercial HVAC: VRF multi-split systems/solar air conditioners/refrigeration
compressors/others
✓ Heat pump systems: Dual-purpose water machines/pool heat pumps/ultra-low temperature heat pumps/others
✓ Industrial equipment: BLDC motors/fan frequency converters/pump systems/others

Performance Indicators Quantification
✓ Functional requirements: FOC control mode (sensorless/sensored), communication protocols (Modbus/CAN), protection functions (over-voltage, under-voltage/over-current/overload/over-temperature/phase loss), others
✓ Electrical parameters: Input voltage (single-phase 220V±15% or three-phase 380V±10%), rated current (10A-200A), efficiency (PFC>96% and THD<5%), others

Certification Standards Clarification
✓ Basic certifications: CE/ROHS/REACH/others
✓ Advanced certifications: UL 60730 (North America safety)/ERP energy efficiency (heat pump COP>5.0)/FCC Part 15B (EMC)/others

Development Cost Mechanism
✓ Cost composition: Covers R&D labor, prototype materials and testing certification expenses
✓ Rebate policy: Tiered rebate after mass production targets are met (e.g., 30% rebate at 50k units, full rebate at 100k units, specific ratios negotiable)
✓ Special note: Development fees are dedicated to securing project resources

Confidentiality Agreement
✓ NDA signing for ODM projects
✓ Encrypted technical document transfer

Supply Chain Assurance
✓ Component traceability system (original manufacturer batch reports from Infineon/ST etc.)
✓ Key component ABD solution (triple backup with imported brands like Infineon/ST and leading domestic brands)

R&D Execution
✓ Sample production: Fast prototyping by R&D technicians (5-10 working days delivery)
✓ Triple verification testing:

     Functional testing (full load temperature rise/THD analysis)
     Reliability testing (-40℃~85℃ temperature cycling/500-1000h aging)
     Safety pre-certification (2500VAC withstand voltage/leakage current <0.25mA)

Development Process
Requirements input → Solution review → Simulation verification → PCB engineering verification → Prototype testing → Design freeze

Process Validation
✓ DFM (Design for Manufacturing) report output
✓ First article confirmation:
Functional test: 100% compliance with customer SPEC
Parameter deviation: Critical parameters (efficiency/THD) ≤1%; Non-critical parameters (dimensions / appearance) ≤3%
Additional requirement: Provide customer-approved sample comparison report .

Production Assurance
✓ Establish dedicated material master data (including alternate part coding cross-reference)
✓ Establish supply chain contingency plan with 3+ backup solutions for key components (MCU/IGBT/MOSFET etc.) covering imported and leading domestic brands
✓ Key component inventory plan (MCU/IGBT/MOSFET safety stock ≥3 months)

Full-process Quality Control System

Mass Delivery Assurance
✓ Production capacity: Fully automated SMT/DIP lines (daily capacity 30K+)
✓ Quality records: IPC-A-610G inspection records provided per batch
✓ Shipping documents: Include CE/UL certificate numbers, safety test raw data, MTBF prediction report

Product Life-cycle Service
✓ Continuous improvement plan: PDCA report every 100k units (including field failure analysis)
✓ After-sales response: 8D report within 48 hours (containment measures included)
✓ Technical iteration: Seamless hardware platform migration (e.g., STM32F4→SPINTROL)