20kW OBC Onboard Charger for EV Lithium Batteries
High-power, high-efficiency charger designed for electric logistics vehicles, buses, construction machinery and other new energy vehicles. Features modular design with adjustable DC output voltage and three-phase AC input.
Key Features
- Compliant with SAE J1772 and EN61851 standards
- Operational range: -40°C to +85°C with IP67 protection
- Firmware upgradable via CAN bus
- Dual cooling options: air cooling or water cooling
- DC High Voltage Interlock Loop (HVIL) protection
- Supports constant power and constant current charging
- High efficiency (94%) with wide application range
20kW OBC Specifications
| Model |
Input voltage range |
Output power |
Output voltage |
Output current |
| 360V |
152~456VAC |
20KW |
360VDC |
200-500VDC/0-54A |
| 540V |
152~456VAC |
20KW |
540VDC |
350-720VDC/0-36A |
| 700V |
152~456VAC |
20KW |
700VDC |
400-850VDC/0-24A |
Technical Parameters
| Parameter |
Specification |
| Rated AC input voltage |
Three-phase AC input 380VAC 20kW |
| Efficiency |
94% |
| Frequency |
45-65Hz |
| Power Factor |
0.99 |
| Output Power |
20kW@380VAC |
| Output Voltage/Current |
200V~500V/0~54A, 350V~720V/0~36A, 400V~800V/0~24A |
6.6KW OBC with 1500W DCDC Converter Models
| Model |
Voltage |
Charger Hardware |
DC-DC Hardware |
DC-DC power |
Cooling method |
| CD-LW01 |
144V |
HK-LW-202-46 |
TDC-JH-144-12 |
1K5W |
Liquid Cooling |
| CD-LW02 |
312V |
HK-LW-450-20 |
TDC-JH-320-12 |
1K5W |
Liquid Cooling |
| CD-LW03 |
540V |
HK-LW-680-14 |
TDC-JH-540-12 |
1K5W |
Liquid Cooling |
| CD-LW04 |
108V |
HK-LW-177-60 |
TDC-JH-108-12 |
1K5W |
Liquid Cooling |
| CD-LW05 |
216V |
HK-LW-290-28 |
TDC-JH-216-12 |
1K5W |
Liquid Cooling |
Product Advantages
- Efficiency: High charging conversion efficiency minimizes energy loss
- Safety: Advanced protection systems prevent electrical accidents
- Stability: Reliable performance throughout charging process
- Compatibility: Works with various electric vehicles and charging stations
- System Integration: Seamless integration with vehicle control and battery management systems
Designed for larger power applications with 3-phase AC input and 400VDC-700VDC output. Suitable for buses and commercial trucks, capable of withstanding harsh environments including vibration, thermal shock and extreme temperatures. Features liquid cooling with IP67 enclosure and programmable control unit for flexible customization.
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