On-Board Charger (OBC)

On-Board Charger (OBC)
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Installed in PHEV and BEV electric vehicles to convert AC to DC for battery charging

The on-board charger (OBC) is an internal system installed in plug-in hybrid (PHEV) and battery electric vehicles (BEV) to convert alternating current (AC) into direct current (DC) required for battery charging. It plays a crucial role in allowing EVs to charge their high-voltage batteries while parked, ensuring greater driving range through improved battery capacity and energy efficiency.

With battery voltage levels standardizing around 450V, and rising to higher voltages, OBCs help shorten charging times and minimize internal wiring. Whether using AC power at home or public/private charging stations, today's OBCs range from 1kW single-phase to 22kW three-phase converters. These chargers are designed to ensure high efficiency and fast charging, making them an essential component for maximizing vehicle range and performance.

  • Power: 1kW-22kW
  • Output Voltage: 30V-850V
  • Cooling method: natural cooling/air cooling/liquid cooling
  • Bidirectional charging
Options of Model
Technical Specifications
Model
Nominal Output Voltage 24V 60V 80V 108V 144V 360V
Output Voltage Range 0-36VDC 0-80VDC 0-105VDC 0-140VDC 0-180VDC 0-450VDC
Max. Output Current 60A 35A 25A 18A 13A 6A
Technical Specifications
Model
Cooling Method Forced Air Cooling Forced Air Cooling Forced Air Cooling Forced Air Cooling Forced Air Cooling
Output Voltage 48V 72V 108V 144V 312V
Output Voltage Range 35-70V 50-107V 80-161V 100-215V 200-450V
Output Current 40A 40A 32A 23A 10A
Output Power 2000W@220VAC 1600W@110VAC 3300W@220VAC 1650W@110VAC 3300W@220VAC 1650W@110VAC 3300W@220VAC 1650W@110VAC 3300W@220VAC 1650W@110VAC
Power 3.3kW
Weight 4.6kg
Technical Specifications
Model
Nominal Output Voltage 360V 144V 108V 72V 48V 24V
Output Voltage Range 0-500VDC 0-180VDC 0-135VDC 0-95VDC 0-68VDC 0-40VDC
Max. Output Current 9A 22A 30A 45A 60A 100A
Technical Specifications
Model
Nominal Output Voltage 24V 60V 80V 108V 144V 360V
Output Voltage Range 0-36VDC 0-80VDC 0-105VDC 0-140VDC 0-180VDC 0-450VDC
Max. Output Current 120A 70A 50A 36A 26A 12A
Technical Specifications
Type Model Nominal Output Voltage Output Voltage Range Max. Output Current
24V 0-36VDC 180A
60V 0-80VDC 105A
80V 0-105VDC 75A
108V 0-140VDC 54A
144V 0-180VDC 39A
360V 0-450VDC 18A
24V 0-36VDC 180A
80V 0-105VDC 75A
108V 0-140VDC 54A
144V 0-180VDC 39A
360V 0-450VDC 18A
Technical Specifications
Type Model Nominal Output Voltage Output Voltage Range Max. Output Current
72V 0-95VDC 90A
48V 0-68VDC 120A
24V 0-40VDC 200A
720V 0-850VDC 9A
540V 0-720VDC 12A
360V 0-500VDC 18A
144V 0-180VDC 44A
108V 0-135VDC 60A
80V 0-105VDC 80A
Technical Specifications
Model
Cooling Method Air Cooling Air Cooling Air Cooling Air Cooling
Output Voltage 115V 144V 312V 540V
Output Voltage Range 70-177V 95-202V 200-450V 400-618V
Output Current 58A 46A 20A 14A
Output Power 6000W@220VAC 3300W@110VAC 6000W@220VAC 3300W@110VAC 6000W@220VAC 3300W@110VAC 6000W@220VAC 3300W@110VAC
Power 6.6kW
Weight 8.5kg
Model
Nominal Output Voltage 312V 540V 600V
Output Voltage Range 200V-450V 400V-680V 400V-800V
Max. Output Current 20A 14A 12A
Technical Specifications
Type Model Nominal Output Voltage Output Voltage Range Max. Output Current
720V 0-850VDC 27A
540V 0-720VDC 36A
360V 0-500VDC 54A
144V 0-180VDC 132A
108V 0-135VDC 180A
80V 0-105VDC 240A
720V 0-850VDC 27A
540V 0-720VDC 36A
360V 0-500VDC 54A
144V 0-180VDC 132A
108V 0-135VDC 180A
80V 0-105VDC 240A
Technical Advantages
  • Motor Controller
  • OBC
  • PDU
  • DC-DC
  • Gearbox
  • Front Motor
  • High efficiency

    The 3.3kW and 6.6kW OBC models offer excellent energy conversion efficiency, minimizing power loss during the charging process and ensuring a more sustainable energy transfer.

  • Compact design

    With a lightweight and compact structure, our on-board charger easily integrates into various vehicle architectures without compromising space or adding unnecessary weight.

  • Advanced safety features

    Equipped with multiple safety protocols, including over-voltage, over-current, and temperature protection, the OBC ensures safe and reliable operation under all conditions.

  • Smart charging

    Supporting smart charging protocols, our on-board charger is compatible with diverse grid standards, offering flexibility and convenience for users.

  • Reliable performance

    Designed to operate in a range of environmental conditions, our EV on-board charger withstands extreme temperatures, humidity, and vibrations, ensuring long-term durability.

  • Global compatibility

    Compliant with international standards and regulations, the 3.3kW and 6.6kW OBC models are built for the global market, making them suitable for various regions worldwide.

Applications

Our EV charging solutions are highly versatile, making them ideal for a range of applications, including passenger cars, commercial electric vehicles, yachts, electric motor engineering equipment, charging stations, and energy storage systems. Our on-board chargers are perfect for any setting that requires efficient voltage conversion. In particular, the 3.3kW on-board charger is the optimal solution for reliable and efficient charging on the go.

Features
  • Achieves up to 95% power efficiency and over 93% full-load efficiency, ensuring optimal energy usage during charging
  • Supports input voltage range ofAC90V~AC264V 45~65Hz, making it compatible with global standards and allowing for grid fluctuations and vehicle export requirements
  • Prevents battery damage during charging or shut down by using smart temperature control, significantly extending battery life
  • Waterproof design and high protection level of IP67, offering protection from dust and immersion up to a depth of 1 meter
  • Operates in temperatures ranging from -40°C to 85°C, with storage capabilities from -55°C to 85°C, meets automotive-grade standards for shock and vibration resistance (QC/T 895-2011)
  • Features built-in thermal sensor and control with automatic recovery through thermal protection
  • Equipped with extensive high-voltage and functional safety features for secure operation
  • Includes LED charging indicators for real-time charging status display
  • Supports various battery types, including LiFePO4 and lithium-ion batteries, with programmable charging modes. It can communicate in real-time with Battery Management Systems (BMS) via CAN communication or automatic control.
  • Input current: 16A
  • Input power factor: ≥0.99, very low THD
  • Charging control: CAN communication or automatic enable
  • Dimensions: 198mm (L) x 244mm (W) x 95mm (H) (air cooling)
  • Weighs only 4.6 kg, making it easy to integrate into various vehicle systems
Safety Measures
  • Input over-voltage/undervoltage/reverse polarity protection
  • Output overcurrent/short circuit protection, over-temperature protection
Optional Accessories
    • Plastic high-voltage connector
    • Molex 20-pin connector
    • Plastic high-voltage connector
    • Crimp terminals
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