20kw@750V Bi-Directional DC/DC Power Supply Inverter for EV Charger

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Product Description

Basic Specifications
Model NO. MXC75050B
DC Bus Side Current 0~33A
Battery Side Current 0~50A
Efficiency (Full Load) ≥98.5%
Communication Protocol CAN bus
Input Voltage 600 Vdc ~ 850 Vdc
Output Voltage 200 Vdc ~ 750 Vdc
Power Factor 0.98
Cooling Mode Fan Cooling
Dimensions 85mm * 226mm * 325mm
MTBF 500,000 Hours
Detailed Photos
Bi-Directional DC/DC Power Supply
DC/DC Power Supply Side View
Module Detail 1
Module Detail 2
Key Features & Functions
Parameters Diagram
Output Performance
  • Hot Swap Technology: The charging module adopts plug-in technology, ensuring convenient installation and maintenance.
  • Advanced Current Sharing: Modules automatically share current with an unbalance degree of less than 5%.
  • Smart Protection: Integrated over-temperature protection triggers at an ambient temperature of 75°C.
  • Voltage Adjustment: External monitoring allows continuous adjustment from 200Vdc to 750Vdc (battery side) and 600Vdc to 850Vdc (DC bus side) with 0.1Vdc steps.
Quality Certifications
Certification 1
Certification 2
Certification 3
Certification 4
Certification 5
Certification 6
CE / TUV / EMC EN IEC 61000-6-1:2019; EN IEC 61000-6-2:2019; EN IEC 61000-6-3:2021; EN IEC 61000-6-4:2019; EN IEC 61851-21-2:2021
cTUVus UL 2202:2009 R2.18; CSA C22.2 NO.107.1-16
Packaging & Shipping
Packaging Detail 1
Packaging Detail 2
Professional Profile & Strategy

Established in 2009, the focus has evolved from power converters for the stable power industry to advanced energy storage and new energy solutions since 2014. By centering strategic development on photovoltaic, energy storage, and V2G (Vehicle-to-Grid) technologies, a robust portfolio has been built.

Current Product Range: 1000V 20KW, 30KW, 40KW, and 50KW modules for new energy charging, and V2G solutions such as MXR80025, MXR75027, and MXC75050B.

Production Process
  • Material Management: Strict procurement from qualified suppliers with categorized warehouse management and 100% data consistency.
  • Manufacturing: SMT, manual plug-in, wave soldering, three anti-spray brush lines, and precise assembly.
  • Quality Control: Comprehensive debugging, inspection, and aging toaster tests to ensure reliability.
  • Traceability: Unified office management system tracks every module from raw material to customer delivery.
After Sales Service

Warranty Period: 1 Year

During the first six months, non-human damaged modules are replaced free of charge (shared freight). During the second half of the year, free repair services are provided. Expert engineers remain available for technical assistance throughout your testing and deployment phases.

Frequently Asked Questions
Q1: What is the efficiency rating of the MXC75050B module?
A1: The module achieves a high efficiency of ≥98.5% at full load, optimizing power conversion and reducing energy loss.
Q2: Can these power modules be used in parallel?
A2: Yes, the system supports parallel configuration for up to 60 units, allowing for scalable power delivery.
Q3: How is the module cooled?
A3: It utilizes an efficient fan cooling system and includes built-in over-temperature protection that activates at 75°C.
Q4: What communication protocols are supported?
A4: The module uses the CAN bus communication protocol for seamless integration with external monitoring and control systems.
Q5: What is the warranty policy for international orders?
A5: We provide a 1-year warranty. This includes a free replacement for non-human damage within the first 6 months and free repair services for the remainder of the year.
Q6: Is the module easy to maintain?
A6: Yes, it features hot-swap technology, allowing for quick plug-and-play installation and easy maintenance without system downtime.

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