Products and Solution

4.5kW On-board DC/DC Power Module

EVMC24-4500M
The EVMC24-4500M is an on-board DC/DC power module series featuring DC voltage input and adjustable DC voltage output. Utilizing DSP digital control, resonant soft-switching, and Three-level Boost technologies, the module is protected by multiple patents. It is characterized by high power density, a wide input voltage range, an extensive operating temperature range, high efficiency, vibration resistance, and superior EMC performance. The module integrates comprehensive protection mechanisms—including input over/under-voltage, output over-current, output over-voltage, output short-circuit, and over-temperature protection—while also supporting multi-module parallel operation.

Product Features

High Efficiency & Energy Saving

High efficiency: Reduces energy loss, meets energy conservation and emission reduction requirements, and cuts electricity costs for customers.

High power density: Saves customer space and reduces system costs.

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Excellent Performance

Wide input voltage range: Covers 200V~800V DC input, with high-voltage side startup.

Excellent EMI performance: Low output ripple and noise, with minimal interference to on-board equipment.

02
Safety & Reliability

Built-in comprehensive protection and fault self-detection: Greatly improves system reliability, with rich fault detection for convenient customer maintenance.

DSP digital control: Fewer components, higher environmental stability, higher reliability, and easier system expansion.

03
Wide Adaptability

High vibration resistance: Designed to meet commercial vehicle on-board equipment requirements, and can pass the ISO16750-3 4.1.2.7 test standard.

Wide operating temperature range and high coolant temperature tolerance: Operating temperature range of -40°C ~ 90°C, with full-load output available when coolant temperature does not exceed 65°C, covering the harsh working environment of automobiles.

04

Product Parameters

EVMC24-4500M 
General
DC Output
DC Input
Operating Environment
Other Parameters
General

Item

Specification

General

Model

EVMC24-4500M 

Dimensions

285*56*164(D*H*W)  

Weight

Approx. 4kg

Coolant temperature 

under 65°C

DC Output
Item Specification
DC Output Rated Power 4.5KW
Peak Power 4.95kW with a duration of not less than 6 minutes
Rated Voltage 27.5V
Rated Current 164A
Output Voltage Range 42VDC~58.5VDC;54VDC~58.5VDC (Constant Power Range)
Current Limiting Range 10%~110% (Stepless)
Thermal Derating
  • Linear power reduction from 87°C; complete cutoff (0W) at 100°C (Cooling plate temperature).

Voltage Ripple ≤ 500mV (Measured with decoupling capacitors, at output currents exceeding 10% of the rated current).
Voltage Regulation Accuracy ≤±1%
Current Regulation Accuracy ≤±1%
Full-load Efficiency ≥95% (Half)
Peak Efficiency ≥96.5%
DC Input
Item Specification
HV DC Input Rated HV Input 540V 
Input Voltage Range 300Vdc~800Vdc (full load) 180Vdc~300Vdc (linear derating)
Input Current <20A 
Startup Mode Low-Voltage start (High-Voltage start optional)
LV DC Input LV Input Range 9Vdc~32Vdc 
LV Input Current <2A 
Input Protection Fuse; Reverse Polarity Protection; EMC
Operating Environment

Item

Specification

Operating Environment

Operating Temperature

-40℃~85℃ 

Storage Temperature

-40℃~95℃ 

Relative Humidity

0~95% 

Vibration level

Broadband random vibration 6Gr ms, referring to 4.1.2.7 in the standard ISO1675 0-3

Altitude

Full load output below 2000m

Other Parameters

Item

Specification

Safety & Reliability

Dielectric Strength

In-Chassis: 2828VDC, 1min;

In-Out: 3540VDC, 1min;

Out-Chassis: 707VDC, 1min

Insulation Resistance

In-Chassis: > 20MΩ;

Out-Chassis: > 220MΩ

Safety Standard

Designed according to EN 61800-5-1:2007

Protection & Alarms

Comm. Interface

CAN2.0  125kbps

Power-up State

Default ON

Input UVP

Under-voltage: 180V±5V(Rec: 195V±5V)

Input OVP

Over-voltage: 770V±5V (Rec: 755V±5V)

Over-temp Protection

Shutdown: >90°C; Auto-recovery: < 75°C (Heatsink temp); Internal Over-temp Protection: Shutdown > 125°C, auto-recovery supported.

Current Limiting

Operates at current limit value; Supports long-term loading;

Supports 6min+ duration if exceeding rated power.

Output Short Circuit

Hiccup mode; Auto-recovery after fault removal

Output OVP

34.5Vdc±0.5V Shutdown & Lock with alarm; Requires manual reset

Output UVP

18Vdc±0.5V: Alarm only (No shutdown)

Internal Faults

DC Bus OVP/UVP; SCI Comm failure; EEPROM R/W error

CAN Timeout

< 2min: Report fault; > 2min: Module shutdown

Expand all parameters

Application Scenarios

Logistics Vehicles
Commercial Vehicles
Airport Shuttle Vehicles
Logistics Vehicles

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