Precision Engineering for New Energy Vehicle Applications
The LK1200A 20kW on-board charger is engineered specifically for integration into new energy vehicles such as logistics transport, buses, and construction machinery. Designed with research and development teams in mind, this onboard charger provides a flexible platform supporting three-phase AC input and a variety of configurable DC outputs. Target users include vehicle manufacturers and R&D engineers who require precise control and compatibility validation across diverse EV chassis and energy storage systems. Its modular architecture facilitates easy adaptation to evolving vehicle requirements, making it an essential component for those working with onboard lithium battery charger technology.
Advanced Specifications Delivering Efficient and Safe Charging
Key technical aspects of the LK1200A include its liquid-cooled, IP67-rated die-cast aluminum enclosure that ensures operational reliability under demanding environmental conditions. This custom dc power supply features active power factor correction (PFC) offering input power factors ≥0.99, with rated power output at 20 kW. Output voltage configurations range from 0–105 V to 0–950 V to accommodate varying battery requirements. Integrated CAN bus communication enables seamless vehicle network integration. Safety is reinforced through multilayer protections including voltage, current, short circuit, and temperature limits, supporting optimized performance metrics exceeding 90% efficiency typical at rated loads.
Applications in System Integration and EV Charging Solutions
This high-performance ev onboard charger meets the rigorous demands of vehicle system integration testing, allowing precise DC output regulation and three-phase AC input validation. Its rapid charging capability and durable design facilitate real-world evaluations for logistic fleet electrification and heavy-duty construction EV prototypes. The charger supports innovative research in thermal management and vehicle communication protocols, streamlining adaptation in evolving electric vehicle technologies. Thus, it plays a critical role in expanding the application of dc ev charger manufacturers’ solutions within the NEV ecosystem.
Product Advantages
Modular Architecture and Robust Design Enhances Integration Flexibility
The LK1200A’s modular structure allows straightforward customization, promoting efficient integration with a broad spectrum of vehicle platforms. Its onboard battery charger architecture utilizes automotive-grade components combined with a liquid-cooled system for enhanced thermal stability and compactness. This design greatly benefits OEMs requiring durable, scalable solutions, leveraging CAN communication capabilities to synchronize with vehicle control units. The robust IP67-rated die-cast aluminum housing protects sensitive electronics, supporting reliable operation in harsh environments encountered by logistics and construction vehicles. This adaptability reflects the strengths expected from leading dc dc converter manufacturers.
Optimized Charging Performance and User-centered Operational Control
Performance-wise, the LK1200A supports precise voltage and current regulation across an extensive output range, which improves charging speed while protecting battery health. Its advanced active PFC circuitry increases energy efficiency, contributing to lower energy losses and reduced thermal load under continuous operation. For engineers and system integrators, the device’s digital control interface simplifies configuration and monitoring, ensuring seamless interaction with vehicle systems. The lightweight design and integration-ready format further streamline installation and maintenance, underscoring the value of this customizable portable charger technology in professional EV charging environments.
Product Overview
The 20kW Liquid-Cooled On-board Charger Assembly is designed for new lithium electric logistics vehicles, buses, construction machinery and other new energy models research and development of a high-power dense and high-efficiency charger, using modular, standardized, universal ideas to design and develop.
The system adopts fully digital control technology for flexible and intelligent operation, enhanced protection, and strong system robustness. The charger supports three-phase AC input, and the DC output voltage is adjustable in the full range.
With an IP67-rated die-cast aluminum housing and automotive-grade components, the charger delivers high power density, lightweight design, and reliable performance across various EV charging applications.
General Specifications
| Model Number | ||||||
| Vehicle Power Suppply Type | Vehicle on-board charger | |||||
| Model Number | LK1916 | LK1915 | LK1914 | LK1913 | LK1912 | LK1911 |
| Input Characteristic | ||||||
| Input Voltage Range | 90VAC~265VAC / 152VAC~456VAC | |||||
| Input Frequency Range | 46~65Hz | |||||
| Starting Impule Current | 80A@single phase；32A@three phase | |||||
| Input Power Factor | ≥0.99 (@220Vin, Pomax) | |||||
| Rated AC Frequency | 50Hz / 60Hz | |||||
| Output Characteristic | ||||||
| Rated Output Power | 19.8kW | |||||
| Rated Output Voltage | 80 | 108 | 144 | 360 | 540 | 700 |
| Output Voltage Range | 0~105 | 0~135 | 0~180 | 0~500 | 0~720 | 0~950 |
| Output Current Range | 0~240 | 0~180 | 0~132 | 0~54 | 0~36 | 0~27 |
| Voltage/Current Regulation | ±1% & ±5% | |||||
| Output Response Time | ≤200mS | |||||
| Typical Efficiency | ≥90% | ≥90% | ≥92% | ≥94% | ≥94% | ≥94% |
| Protective Characteristic | ||||||
| Over and Under Voltage Protection | Input over and under voltage shutdown can be self-recovery,output over andunder voltage shutdown can be self-recovery | |||||
| Output Reverse Connection and Short Circuit Protcetion Output |
Output short circuit and reverse connection shutdown can beself-recovery | |||||
| Over Temperature Protection | When the heat sink temperature is higher than 75°C, it will reduce the output power. And it will disconnect the circuit when the temperature is higher than 95°C. It will restore the output when the charging temperature is lower than 85°C | |||||
| Enivromental Condition | ||||||
| Operating Ambient Temperature | -20°C~ +65°C | |||||
| Relative Humidity | 5%~95% | |||||
| Dust Proof and Waterproof | IP67 | |||||
| Cooling Method | Liquid Cooled | |||||
| Communication Function | CAN network | |||||
| Charging Function | Receive charging instructions to charge normally; No command charger is in standby state | |||||
| Others | ||||||
| Product Size (mm) | 550*250*100 | |||||
| Product Weight | ≤25kg | |||||
