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40KW Smart DC Charger 300-950V Input & 150-1000V Output - China Suppliers & Factory for Electric Vehicles
Main Features
- Energy-efficient & eco-friendly: High-efficiency operation across the entire load range; ultra-low standby power consumption with efficiency exceeding 95.5%.
- Ultra-wide input voltage range: Operates normally from 300 Vdc to 950 Vdc, adapting to a wide variety of input environments.
- Ultra-wide output voltage range: 50 Vdc to 1000 Vdc, meeting the fast-charging needs of various electric vehicles and battery packs.
- Wide constant-power output range: Constant-power output from 300 Vdc to 1000 Vdc, meeting the fast-charging needs of various electric vehicles.
- No current reduction at low voltage: Maintains a maximum output of 133.3A at voltages below 300 Vdc, meeting the fast-charging needs of more devices.
- High power density: Greater than 65 W/in³, saving space inside the charging station and reducing its overall footprint.
- Emergency stop function: Rapidly responds to system emergency shutdown actions, ensuring safety and reliability.
- Noise mode settings: Three adjustable noise modes to meet noise control requirements in different environments.
- Fan speed reporting: Allows users to adjust the charging station's fan speed based on the module's fan speed, further optimizing noise levels.
- Intelligent airflow detection: Monitors airflow smoothness; automatically limits power and triggers an alarm when airflow is obstructed.
- High environmental reliability: Key circuits are potted with resin, significantly enhancing resistance to salt fog, humidity, and mold.
- Built-in discharge circuit: Automatically discharges residual charge, simplifying system design and improving system safety.
- Battery reverse charge protection: Effectively protects the battery while ensuring reliable and safe system operation.
Technical Specifications
| Category | Parameter Name | Value / Description |
|---|---|---|
| Environmental Conditions | Operation Temperature | -40°C ~ +75°C, derating required above 55°C |
| Storage Temperature | -40°C ~ +70°C | |
| Relative Humidity | ≤95% RH, without condensation | |
| Cooling Mode | Forced air cooling | |
| Altitude | 2,000 m a.s.l., derating required above 2,000 m a.s.l. | |
| Atmospheric Pressure | 79 kPa ~ 106 kPa | |
| DC Input | Input System | DC+ / DC- + PE |
| Rated Voltage Range | 300 – 950 Vdc | |
| Max Voltage | 1000 Vdc | |
| Rated Voltage (Nominal) | 800 Vdc | |
| Max Current | 66.6 A | |
| Standby Power Consumption | <20 W at rated 800 Vdc input | |
| DC Output | Voltage Range | 150 ~ 1000 V |
| Current Range | 0 ~ 133 A (rate-limiting points can be set) | |
| Rated Current | 40 A (required for setting of current limiting point) | |
| Steady Voltage Precision | <±0.5% (150–1000 V, 0~20 MHz) | |
| Steady Current Precision | ≤±1% (rated range 20%~100% output load) | |
| Load Regulation Rate | ≤±0.5% | |
| Startup Overshoot | ≤±3% | |
| Peak-to-Peak Noise | ≤1% (150~1000 V, 0~20 MHz) | |
| Efficiency | Under Rated Input Voltage | ≥95% @ 1000 V, full load |
Frequently Asked Questions
1 What is the input voltage range of this DC-DC charging module?
The module supports an ultra-wide DC input voltage range of 300 Vdc to 950 Vdc under rated conditions, with a maximum tolerable input of 1000 Vdc. The nominal rated input voltage is 800 Vdc, making it compatible with a broad variety of DC bus environments in EV charging stations.
2 What output voltage and current can this module deliver?
The module provides an output voltage range of 150 V to 1000 V and a current range of 0 to 133 A (with configurable rate-limiting points). It maintains a maximum output of 133.3 A even at voltages below 300 Vdc, ensuring no current reduction at low voltage for broader device compatibility.
3 How efficient is this module and what is its standby power consumption?
The module achieves an efficiency of ≥95% at 1000 V full load, with peak efficiency exceeding 95.5% across the entire load range. Standby power consumption is less than 20 W at the rated 800 Vdc input, making it highly energy-efficient and eco-friendly for continuous operation.
4 What environmental conditions can this module operate in?
The module operates in temperatures from -40°C to +75°C (with derating above 55°C) and can be stored at -40°C to +70°C. It handles relative humidity up to 95% RH (non-condensing) and operates at altitudes up to 2,000 m a.s.l. Key circuits are resin-potted for enhanced resistance to salt fog, humidity, and mold.
5 Does the module have intelligent safety and protection features?
Yes. The module includes an emergency stop function for rapid system shutdown, a built-in discharge circuit that automatically clears residual charge, battery reverse charge protection, and intelligent airflow detection that automatically limits power and triggers alarms when airflow is obstructed — all contributing to safe and reliable operation.
6 Can the noise level of the module be controlled or adjusted?
Yes. The module offers three adjustable noise modes to meet different environmental noise control requirements. Additionally, the fan speed reporting feature allows operators to adjust the charging station's fan speed based on the module's reported fan speed, further optimizing overall acoustic performance of the installation.