EV Power Supply 200Vdc~880Vdc
to 27.5V 3KW DC DC Converter
DC-DC Converter (200V-880V to 26V) for Electric Vehicles: Key Functions & Applications
1. Core Functions
Voltage Step-Down: Converts high-voltage traction battery power (200V-880V) to stable 27.5V DC output for low-voltage systems.
Energy Efficiency: Typically achieves >96% efficiency ( LLC resonant topology).
Isolation Protection: Galvanic isolation (1.5kV) to prevent high-voltage leakage risks.
| Technical Specification | Value |
|---|---|
| Input Voltage | 200~880Vdc |
| Output Voltage | 26Vdc |
| Max Output Current | 110A |
| Rated Power | 3KW |
| Maximum Power | 3.2KW |
| Peak Efficiency | >96% |
| Protection Rating | IP67 (Natural Cooling) |
| Communication Interface | CAN2.0 |
| Dimensions (L×W×H) | 273×200×103mm |
| Unit Weight | 5.6KG |
2. Primary Use Cases
| Application | Purpose | Example Components |
| Auxiliary Systems | Powers control units, lighting, sensors, and infotainment | ECU, LED headlights, ADAS cameras |
| Thermal Management | Drives coolant pumps,fans for battery, cabin climate control | PTC heaters, HVAC compressors |
| Safety Devices | Supplies emergency brakes, door locks, and crash sensors | ABS, SRS airbag systems |
Key features:
-
Compact industrial-grade DC/DC converter
-
High-efficiency design (>96%)
-
Rugged IP67 enclosure
-
CAN bus communication enabled
3. Critical Design Notes
Input Range Flexibility: Must tolerate EV battery voltage fluctuations (e.g., 750V during regen braking).
EMC Compliance: Meet CISPR 25 Class 3 for electromagnetic interference suppression.
Thermal Derating: Output current drops by 15% at ambient temperatures >85°C.
Protection Features: Required:
Overcurrent (OCP)
Short-circuit (SCP)
Overvoltage (OVP)
4. Keywords for Technical Documentation
Primary Terms:
`High-voltage to low-voltage DC-DC converter`, `Isolated step-down converter`, `Automotive-grade power supply`
Performance Metrics:
Wide input range (200V-750V)`, `26V/30A output`, `96% peak efficiency`, `EV DC-DC Converter`
Applications:
`EV auxiliary power module`, `Battery management system (BMS)`, `Electric bus low-voltage network`
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The Progreen Technology team ranges from electrical design engineers to quality control experts, all of who provide the integral support required to guide each client.Client-oriented will be our focus.
