6.6kw on-Board Charger (OBC) Power Module for Evs

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Product Description

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Basic Specifications

Model NO.
VTC 6K6-220S380/540/640-M
Max Output Current
20A/14A/12A
Auxiliary Power
9~32VDC
Efficiency
Above 94%
Communication
Can-Bus
EMC Standard
GB/T18655:2008, En 55022
Specification
OBC Power Module
Origin
China

Product Strengths

Full Series Product Range

We offer a comprehensive range of electronic control units for electric vehicles, including 6-in-1, 5-in-1, 4-in-1, and 3-in-1 integrated MCU and auxiliary motor control units. Our solutions cover Hybrid EVs, motor controller integrated systems, and gearbox-motor combinations.

• Power range covers from 3kW to 355kW.
• Applicable for Permanent Magnet Synchronous Motors (PMSM) and Asynchronous Motors.

Proven Safety and Reliability

Our modules have a track record of safe and reliable operation in over 6,000 buses across nearly 20 cities for 8-10 years. Individual units have successfully recorded 500,000 to 700,000 kilometers of operation.

Versatile Vehicle Applications

Over 600,000 units are utilized across various platforms:
  • Passenger Vehicles: From mini vans to 18m dual source trolleybuses.
  • Trucks: Light trucks (3.5-7.5 tons) to heavy-duty trucks (18-55 tons).
  • Specialized: Sanitation, sprinkler, dust suppression, and dock tractors.
  • Marine: Passenger, tourist, and cargo ships.

Product Features

Cooling method: Efficient aluminum plate cooling
Supports on-line upgrade and remote fault diagnosis
High power density with modular design for easy integration
Full digital SW design with integrated protection functions

Main Technical Parameters

Items Technical Parameters Remarks
Operation Temperature-40~85°CAluminum temp
Nominal Output Power6.6kW-
Input Voltage Range85~265Vac-
Output Voltage Range200~450Vdc / 400~650Vdc / 450~750Vdc-
Max Output Current20A/14A/12A-
Auxiliary Power9~32VdcVCC
Efficiency≥94%Nominal voltage
Voltage Accuracy±1%-
Current Accuracy±3%-
Low Voltage Wake-up200mA maxWake up BMS/VCU
Voltage Wake-upAC/CC/CP/ENReserve charging function
CommunicationCAN-BUS-
Static Current≤2mASleep mode consumption
ProtectionsInput OVP/UVP, Output OVP/UVP, OTP, OCP, Short circuit, Communication fault
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Cooperative Partners

Partner Network
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Project Showcases

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Frequently Asked Questions

What is the energy efficiency of this 6.6kW OBC module?
The module features high-efficiency power conversion, achieving a rating of ≥94% at nominal voltage.
How is the module protected against electrical faults?
It includes a full suite of digital protections: Input/Output Over-Voltage (OVP), Under-Voltage (UVP), Over-Temperature (OTP), Over-Current (OCP), and output short circuit protection.
Does this module support different battery voltage levels?
Yes, it is designed with flexible output voltage ranges including 200~450Vdc, 400~650Vdc, and 450~750Vdc to meet various EV requirements.
What communication protocol does the module use?
The power module utilizes standard CAN-BUS communication for seamless integration with vehicle control units (VCU) and battery management systems (BMS).
Can the module be updated after installation?
Yes, the module supports on-line software upgrades and remote fault diagnosis to ensure long-term serviceability.
What is the operating temperature range?
The module is designed to operate reliably in harsh environments with a temperature range of -40°C to +85°C.

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