10KW on board charger
10kW On-Board Charger (Liquid-Cooled) | IP67 Waterproof | 500V–850V High-Voltage EV Solution
In the rapidly evolving electric vehicle landscape, efficient thermal management is the key to longevity and performance. Our 10kW On-Board Charger (OBC) is a heavy-duty, liquid-cooled power conversion unit specifically engineered for high-voltage battery architectures. Combining automotive-grade durability with a sophisticated digital control architecture, it provides a stable 10kW output for electric buses, commercial trucks, and premium EVs.
Product Highlights
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Advanced Thermal Stability: Integrated liquid cooling (flow rate ≥ 10 L/min) ensures maximum power density and prevents thermal derating.
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800V Architecture Ready: Supports a wide output range of 500V–850VDC, optimized for modern high-voltage platforms.
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Automotive-Grade Protection: Fully sealed IP67 enclosure provides superior resistance to water, dust, and harsh environments.
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Smart Diagnostics: Fully digital software design with support for online upgrades and comprehensive fault diagnostics.
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Intelligent Connectivity: Integrated CAN-BUS communication for seamless handshake with BMS and VCU.
Technical Expertise & Performance
1. Superior Liquid-Cooled Efficiency
Thermal management is critical for high-power electronics. This 10kW OBC features a precision-engineered liquid-cooling baseplate that integrates into the vehicle’s primary coolant loop. With a peak efficiency of ≥ 94%, the unit minimizes energy waste and maintains a stable operating temperature even under full load in ambient conditions up to 85℃.
2. Precision Power Control
Reliability in power electronics requires strict accuracy. This unit delivers ± 1% voltage accuracy and ± 3% current accuracy, ensuring a safe and stable charging curve that preserves the health of the high-voltage battery pack. The unit operates across a wide input range of 85V–265VAC, making it compatible with global power grids.
3. Comprehensive Protection Suite
To ensure maximum Trustworthiness, the unit integrates a redundant hardware protection suite:
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Input/Output Protection: Over-voltage and under-voltage safeguards for both AC input and DC output.
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Thermal Management: Real-time monitoring with over-temperature shutdown protection.
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Circuit Protection: Instantaneous output short-circuit and over-current protection.
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Communication Fault Guard: Safeguards against data loss or signal interruption via CAN-BUS.
Technical Specifications
| Category | Parameter | Specification |
| Electrical | Rated Power | 10kW |
| Input Voltage Range | 85V–265VAC | |
| Output Voltage Range | 500V–850VDC | |
| Rated Output Voltage | 750VDC | |
| Max Output Current | 16A | |
| Efficiency | ≥ 94% | |
| Environmental | Operating Temp | -40℃ to +85℃ |
| Cooling Method | Liquid-Cooled (≥ 10L/min) | |
| Protection Level | IP67 | |
| Control | Communication | CAN-BUS |
| Static Current | ≤ 2mA (Sleep/Shutdown) |
Frequently Asked Questions (FAQ)
Q: Why choose liquid cooling over air cooling for a 10kW unit?
A: Liquid cooling provides significantly higher heat dissipation efficiency, allowing the OBC to maintain full power output in enclosed engine bays or hot climates without “throttling” power.
Q: Is this charger compatible with 800V vehicle systems?
A: Yes. With an output range up to 850VDC, this unit is specifically designed for the next generation of high-voltage EV architectures.
Q: How does the unit handle auxiliary battery drain?
A: The unit features an ultra-low static current of ≤ 2 mA in sleep mode, ensuring that the vehicle’s 12V auxiliary battery is not drained during long-term storage.
Q: Does it support online software upgrades?
A: Yes. The fully digital software architecture supports remote firmware updates via the CAN-BUS interface, allowing for future protocol optimization without hardware removal.