Description
BIDC75025 is a bidirectional DC conversion module specifically designed to meet the application requirements of energy storage devices, DC microgrids, and the secondary utilization of retired batteries. This module can be used to connect batteries and DC buses. It is equipped with a built-in high-frequency isolation transformer and adopts the third-generation semiconductor SiC devices, achieving excellent performance such as high efficiency, high power density, high scalability, minimal electromagnetic radiation and interference, and high reliability. It is an energy conversion module with international leading level.
Product Features
High Efficiency
- Ultra-high efficiency: All-SiC design, with a full-load efficiency of up to 98% and peak efficiency up to 98.5%.
Safe and Reliable
- Built-in intelligent discharge circuit: Automatically discharges residual charge, ensuring high system reliability.
- High-frequency transformer isolation: Ensures high reliability of the bidirectional conversion module.
- Bidirectional energy flow: The same module enables DC/DC bidirectional conversion function, allowing smooth transition when the current direction changes.
Intelligent and Convenient
- Fully digital control: Dual DSP design, high reliability control.
- No-load hot-swappable: Plug-and-play, easy to maintain.
- Multi-module parallel operation: Supports up to 32 modules in parallel, flexible capacity expansion, compatible with different types of retired batteries used simultaneously.
Wide Compatibility
- Wide input voltage range: 300Vdc ~ 750Vdc, suitable for various grades of DC busbars.
- Wide output voltage range: 50Vdc~750Vdc, compatible with various power batteries and energy storage batteries.
- Wide temperature range: -40°C ~ +75°C, suitable for various application scenarios.
- Unique triple protection design: Salt spray, moisture, and mold resistant design, suitable for various application scenarios.

Parameter Overview
Basic Parameters
- Model: BIDC75025
- Rated Power: 15kW
- Mains-side Voltage: 300Vdc~860Vdc
- Battery-side Voltage: 300Vdc~750Vdc
- Conversion Efficiency: >98% (rated voltage 750Vdc, 50% ~ 100% load current; peak efficiency > 98.5%)
- Module Size: 85mm (height) × 226mm (width) × 395mm (depth) (excluding handles and protruding parts)
- Isolation: Yes
Battery Test
- Input/Output Power: 15kW (voltage 600Vdc~750Vdc)
- Voltage Range: 300Vdc~750Vdc
- Current Range: 0~25A
- Rated Current: 20A
- Average Current Imbalance: Imbalance < ±5%
- Voltage Stabilization Accuracy: < ±0.5%
- Current Stabilization Accuracy: ≤ ±1% (output load 20% ~ 100% rated range)
- Efficiency (Full Load): >98% (rated voltage 750Vdc, 50% ~ 100% load current; peak efficiency > 98.5%)
Mains-side
- Current Stabilization Accuracy: ≤ ±1% (output load 20% ~ 100% rated range)
- Efficiency (Full Load): >98% (rated voltage 750Vdc, 50% ~ 100% load current; peak efficiency > 98.5%)
- Rated Current: 20A
- Voltage Stabilization Accuracy: < ±0.5%
- Average Current Imbalance: Imbalance < ±5%
- Current Range: 0~25A
- Voltage Range: 300Vdc~860Vdc
- Input/Output Power: 15kW
Working Environment
- Relative Humidity: ≤95%RH, non-condensing
- Altitude: 2000m, for altitudes above 2000m, derating should be considered
- Cooling Method: Forced air cooling
- Working Temperature: -40°C ~ +75°C, derating use above +55°C
Other Parameters
- Dimensions: 85mm (height) × 226mm (width) × 395mm (depth) (excluding handles and protruding parts)
- Weight: ≤10.5kg
- Communication Method: CAN bus
- Mean Time Between Failures (MTBF): >500,000 hours
- Compliant Standards: GB/T18487, NB/T33001, NB/T33008