In new energy electric vehicles and electric transportation equipmentHigh-voltage battery pack (400V / 800V platform)It has become the mainstream power supply architecture. However, the vehicle control system, actuators, sensors, and auxiliary equipment still largely use [other technologies/methods].24V DC power supplyAt this point, it is necessary to go throughHigh-voltage to low-voltage isolated DC-DC power supply moduleThis enables safe, stable, and efficient voltage conversion.
Mingxin TechnologyXDB500-600S24It is a product specifically designed for high-voltage battery systems.500W inputWide range400-800VDC to 24VDC isolated IP65 waterproof DC-DC power supply moduleThe product usesFully sealed aluminum alloy heat dissipation casing,haveHigh isolation withstand voltage, wide input voltage range, low ripple noise, fast dynamic response, and efficient natural heat dissipation.Features such as these make it a high-voltage step-down power supply system specifically designed for new energy electric vehicles and electric transportation equipment.
Why must high-voltage battery systems use a 400-800VDC to 24V isolated DC-DC power supply?
In electric vehicles, electric engineering vehicles, electric buses, and special electric transportation equipment, the battery pack voltage has been increased from the traditional 48V to:
400V high voltage platform
800V high voltage platform
The following devices still use a 24V operating voltage:
Vehicle controller and VCU
Solenoid valves, relays and actuators
Cooling fans, water pumps and thermal management systems
Sensors, monitoring units and communication modules
Vehicle lighting and auxiliary systems
If notHigh-voltage isolated DC-DC power supplySurges, spikes, and interference on the high-voltage side can easily be transmitted to the low-voltage system, posing serious safety hazards.
Therefore, the following must be adopted:
400-800V to 24V Isolated Waterproof DC-DC Power Module
Achieve complete electrical isolation between high and low voltage systems.
II. Typical Power Supply Objects of XDB500-600S24 in High-Voltage Electric Vehicle Step-Down Systems
This module stably converts high-voltage battery power to 24V, providing reliable power to the following systems:
VCU (Vehicle Control Unit)
BMS and monitoring system
Thermal management system (water pump/fan)
Electromagnetic actuator
Communication and sensor systems
Onboard auxiliary electrical equipment
ThatRapid dynamic response capabilityIt can cope with voltage surges caused by changes in vehicle acceleration, braking, and motor operating conditions.
III. Core Electrical Parameters of the Product
| model | XDB500-600S24 |
|---|---|
| Rated power | 500W |
| Input voltage | 600VDC (Wide range 400-800VDC) |
| Platform compatibility | 400V / 800V high-voltage battery platform |
| Output voltage | 24VDC |
| Output current | 20.8A |
| Type conversion | High voltage isolated DC-DC |
| Protection level | IP65 waterproof |
| Shell structure | Fully sealed aluminum alloy heat dissipation casing |
| Cooling method | Natural cooling / Radiator can be added |
IV. Core Technological Highlights Specifically Designed for High-Voltage Electric Vehicle Environments
✅ Wide voltage input, compatible with 400V and 800V platforms
The input voltage design is adapted to the voltage fluctuations of high-voltage batteries under different charge levels and operating conditions, meeting the requirements of mainstream electric vehicle high-voltage platforms.
✅ High isolation and withstand voltage design ensures the safety of low-voltage systems.
High isolation voltage is achieved between input and output, effectively suppressing surges, spike interference and common-mode noise, and protecting the 24V precision control system.
✅ Low ripple noise output
It meets the needs of devices such as VCU, BMS, and sensors that have extremely high requirements for power purity.
✅ Fully sealed aluminum alloy casing for efficient heat dissipation
The metal casing directly participates in heat dissipation, supports natural cooling, and is adapted to the high-temperature, enclosed vehicle environment.
✅ Fast dynamic response
Maintain a stable 24V output during motor startup, acceleration, and sudden load changes.
✅ Constant voltage/constant current charging function
It can provide safe and stable charging support for 24V batteries or energy storage units.
V. Comprehensive Protection Function Design
Input undervoltage protection
Input overvoltage protection
Output overcurrent protection
Over-temperature protection
Input/output electrical isolation protection
Ensure long-term safe operation in complex high-voltage electrical environments.
VI. The Importance of IP65 Waterproof Structure in Electric Transportation Equipment
Electric vehicles and electric transportation equipment face the following challenges during operation:
Rainwater and muddy water wash
High humidity and dusty environment
Long-term vibration
High-temperature sealed chamber
The XDB500-600S24 adopts a potting and waterproof design with a fully sealed structure, meeting the IP65 protection level and significantly improving the reliability and lifespan of the power module in harsh environments.
VII. Mingxin Technology's Customization Advantages in High-Voltage Isolated DC-DC Power Supplies
Support for high voltage input range optimized for vehicle platform
Output current, ripple performance and protection parameters customization
Customizable casing size and installation method
EMI/EMC Immunity Enhanced Design
Earthquake-proof, moisture-proof, and salt spray-proof reinforcement treatment
Support OEM/ODM and non-standard power supply development
Provide sample verification and engineering technical support
VIII. About Guangdong Mingxin Technology Co., Ltd.
Guangdong Mingxin Technology Co., Ltd., located in Dongguan Gaosheng Industrial Park, focuses on the research and development and production of AC/DC modular power supplies, DC/DC modular power supplies, railway power supplies, and industrial control power supplies. Its products are widely used in industrial control, communication engineering, new energy systems, automotive electronics, and special electric transportation equipment.
The company supports both standard and non-standard power supply customization and provides OEM/ODM power supply solutions.
GetXDB500-600S24Datasheet and Power Supply Selection Support for High-Voltage Electric Vehicles
If you are developing new energy electric vehicles or electric transportation equipment based on 400V or 800V high-voltage battery platforms, please contact Mingxin Technology engineers for assistance.XDB500-600S24 High Voltage Isolated Waterproof DC-DC Power SupplyComplete datasheet and selection recommendations.
