22KW bidirectional on board charger
22kW Bidirectional On-Board Charger (Liquid-Cooled) | V2G & V2L Enabled | 3-Phase High-Power EV Solution
As the global transition to high-voltage electric vehicle architectures accelerates, the demand for efficient, high-power energy management has never been greater. Our 22kW Bidirectional On-Board Charger (OBC) represents the pinnacle of power electronics, offering unparalleled 3-phase charging speed combined with Vehicle-to-Load (V2L) and Vehicle-to-Grid (V2G) capabilities.
Product Highlights
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Dual-Mode Power: High-speed 3-phase charging up to 22kW and single-phase charging up to 6.6kW.
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Bidirectional Versatility: Integrated 6kVA Inverter supports V2L/V2G, transforming the vehicle into a mobile power station.
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Integrated 3kW DC/DC: High-output auxiliary power for 12V vehicle systems (218A Max).
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Thermal Excellence: Advanced Liquid Cooling (Flow Rate≥ 12L/min) for maximum power density and longevity.
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Next-Gen Communication: Built-in CAN-FD for high-speed, reliable data exchange with BMS and VCU.
Technical Expertise & Performance
1. High-Efficiency 22kW Charging
Engineered for premium EVs and heavy-duty logistics, this unit supports a wide input range of 150V–456VAC.
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Conversion Efficiency: Achieves ≥ 94% efficiency, minimizing energy waste and heat generation.
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Multi-Voltage Support: Standard configurations for 380VDC, 640VDC, and 750VDC systems, with customizable output up to 860VDC for ultra-high voltage platforms.
2. 6kVA Bidirectional Inverter (V2X)
Empower your customers with mobile energy. The integrated inverter converts high-voltage DC into a stable 220VAC (± 5% ) single-phase output.
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Clean Energy: Low harmonic distortion (THDv < 3%) makes it safe for sensitive medical equipment, laptops, or household appliances.
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Industrial Response: A dynamic response time of 60ms ensures seamless power transitions.
3. Integrated 3kW DC/DC Converter
Eliminate the need for separate components. This all-in-one unit provides a high-current 13.8V supply to power the vehicle’s low-voltage electronics and charge the auxiliary battery with up to 218A.
Technical Specifications
| Category | Parameter | Specification |
| OBC (Charging) | Rated Power | 3-Phase 22kW / Single-Phase 6.6kW |
| Input Voltage | 150V–456VAC (32A Max) | |
| Output Voltage Range | 190V–500V / 400V–750V / 500V–860V | |
| Inverter (V2L) | Rated Power | 6kVA ( ≥ 94%Efficiency) |
| Output Voltage | 220VAC (± 5%) Single Phase | |
| DC/DC Converter | Rated Power | 3kW (218A Max Output) |
| Output Voltage | 13.8V (9–18V Range) | |
| Environmental | Operating Temp | -40°C to +85°C |
| Cooling Method | Liquid-Cooled ( ≥ 12L/min) | |
| Communication | Control Interface | CAN-FD |
Frequently Asked Questions (FAQ)
Q: Why is liquid cooling required for a 22kW unit?
A: At 22kW, the heat density is significantly higher than standard chargers. Our liquid-cooling system (supporting flow rates $\geq 12\text{L/min}$) ensures the electronics operate within an optimal thermal window, preventing power derating and extending the lifespan of the SiC/IGBT components.
Q: Is this charger compatible with 800V battery architectures?
A: Yes. We offer a specific configuration with an output range of 500V–860VDC, making it fully compatible with the latest generation of ultra-fast charging high-voltage platforms.
Q: Does the bidirectional function support grid injection (V2G)?
A: Absolutely. The unit features high-precision voltage and frequency control, making it suitable for both off-grid V2L applications and grid-tied V2G stabilization projects, provided the external VCU supports the necessary protocols.
Q: How does the CAN-FD communication benefit the vehicle system?
A: CAN-FD (Flexible Data-rate) offers higher bandwidth and reliability than traditional CAN. This allows for more frequent data updates between the OBC and the BMS, ensuring safer charging and more responsive V2L performance.