Description
IMDC75040II Series
High-Frequency Isolation · Bidirectional Power Flow
Soft-switching resonant technology · Up to 97% efficiency · DSP digital control · CAN/RS485 communication · Supports up to 16 units in parallel
📋 Module Overview
🔧 Technical Architecture
This DC/DC module adopts high-frequency isolated bidirectional conversion technology, namely soft-switching resonant technology, delivering high efficiency with bidirectional energy flow and automatic charge/discharge switching. Designed with DSP architecture, it supports module paralleling and CAN/RS485 communication for seamless integration with third-party equipment.
🎯 Application Positioning
Widely deployed in common DC bus scenarios such as PV-storage-charging, storage-charging, battery second-life energy storage, and V2G vehicle-to-grid applications. With high-frequency isolation between battery and DC bus, it is the preferred choice for industries requiring bidirectional energy flow.
⭐ Product Advantages
🛡️ Safer & More Reliable
- Full high-frequency isolation ensures battery-bus safety
- DSP+CPLD digital control with multi-level protection
- Reliable parallel function supporting up to 16 modules
⚡ Higher Efficiency
- Soft-switching resonant technology, peak efficiency 97%
- High-frequency isolation eliminates transformers, efficiency >97%
🧠 Smart & User-Friendly
- Wide battery voltage: 200V–750Vdc
- Wide DC bus voltage for multiple bus specifications
🔧 Flexible Configuration
- Standard rack mount with compact design
- Hot-swappable modules for flexible configuration
- Enables flexible design of energy storage, PV-storage-charging systems
📊 Technical Specifications
Table 1-2 IMDC75040II Module Technical Parameters
| Product Model | IMDC75040II | ||
|---|---|---|---|
| 🔋 Charging Section | |||
| Bus Side Parameters | |||
| Bus Voltage Range | 600Vdc ~ 850Vdc | ||
| Bus Current | ≤34A | ||
| Output Voltage | 200 ~ 750VDC | ||
| Output Current | 40A MAX | ||
| Rated Output Power | 20kW | ||
| Output Power Derating | Constant power 20kW above 500V; constant current 40A below 500V | ||
| Battery Side Parameters | |||
| Charging Efficiency | 97% Max | ||
| Voltage Regulation Accuracy | ± 0.5% | ||
| Current Regulation Accuracy | ± 1% | ||
| Ripple Coefficient | < 1%Vo | ||
| Soft Start Time | 3s ≤ t ≤ 8s | ||
| 🔋 Discharging Section | |||
| Battery Side Parameters | |||
| Battery Side Voltage Range | 200 ~ 750VDC | ||
| Battery Side Current | 40A Max | ||
| Bus Side Parameters | |||
| DC Bus Voltage Range | 600Vdc ~ 850Vdc | ||
| Rated Output Power | 20kW | ||
| Output Power Derating | Constant power 20kW above 500V; constant current 40A below 500V | ||
| Discharging Efficiency | 97% Max | ||
| 🛡️ Other Features | |||
| Overvoltage Protection | Yes | ||
| Overcurrent Protection | Yes | ||
| Short-Circuit Protection | Yes | ||
| Overtemperature Protection | Yes | ||
| Operating Temperature | -30 ~ 65 °C, derating above 55°C | ||
| Storage Temperature | -40 ~ 75 °C | ||
| Noise | < 60dB | ||
| Dimensions (W×H×D) | 226×86×575mm | ||
| Weight | 11Kg | ||
| Ingress Protection | IP20 (single module) | ||
| Cooling Method | Intelligent speed control, forced air | ||
| Safety Standard | GB/T 34120-2017 | ||
| EMC Standard | GB 9254-2008 | ||
Table 1-3 IMDC75040II-MPPT Module Technical Parameters
| Product Model | IMDC75040II-MPPT | ||
|---|---|---|---|
| ☀️ MPPT PV Input Parameters | |||
| Voltage Range | 200 ~ 730VDC | ||
| Rated Power | 20kW | ||
| Max Input Current | 40A | ||
| PV Optimal Input | 500 ~ 700Vdc | ||
| Rated Input Voltage | 500Vdc | ||
| PV Open Circuit Voltage | 730Vdc | ||
| ⚡ DC Bus Output Parameters | |||
| DC Bus Voltage Range | 600Vdc ~ 850Vdc (Recommended 750V) | ||
| Rated Output Power | 20kW | ||
| Output Power Derating | 20kW above 500Vdc PV input; 40A below 500Vdc | ||
| Discharging Efficiency | 97% Max | ||
| 🛡️ Other Features | |||
| Overvoltage Protection | Yes | ||
| Overcurrent Protection | Yes | ||
| Short-Circuit Protection | Yes | ||
| Overtemperature Protection | Yes | ||
| Operating Temperature | -30 ~ 65 °C, derating above 55°C | ||
| Storage Temperature | -40 ~ 75 °C | ||
| Noise | < 60dB | ||
| Dimensions (W×H×D) | 226×86×575mm | ||
| Weight | 11Kg | ||
| Ingress Protection | IP20 (single module) | ||
| Cooling Method | Intelligent speed control, forced air | ||
| Communication Interface | CAN 2.0B / RS485 | ||
| Safety Standard | GB/T 34120-2017 | ||
| EMC Standard | GB 9254-2008 | ||
🌍 Application Areas
☀️ PV-Storage-Charging / Storage-Charging Multi-Energy Complementary
Multi-energy complementary scenarios such as large-scale charging stations or battery swap stations utilize “PV-storage-charging” or “storage-charging” integrated systems powered by clean energy. PV generation stores energy in batteries, forming a microgrid with PV, storage, and charging infrastructure that intelligently interacts with the public grid, supporting both grid-tied and off-grid modes. The energy storage system mitigates grid impact during high-current charging, enables peak shaving and valley filling for electricity price arbitrage. The common DC bus architecture reduces AC/DC conversion stages, lowering investment costs while improving system efficiency. EV energy storage enables bidirectional DC charging that can both charge and discharge, facilitating controlled bidirectional energy exchange between EVs and the grid. This allows EV owners to charge during low-price periods and discharge during peak hours to capture price differentials, enhances load flexibility, reduces distribution network investment, absorbs clean energy, and promotes EV industry development while reducing public charging facility footprint.
🚛 Vehicle-Mounted Mobile Energy Storage
Vehicle-mounted mobile energy storage vehicles equipped with large battery banks utilize this DC/DC module to enable multiple application scenarios including vehicle charging and DC load power supply. EVs can supply power to DC loads through this DC/DC module, enabling EV energy storage V2L (Vehicle-to-Load) applications.
⚡ Electrical Topology & Operating Modes
Charge / Discharge
V2L / DC Power
Bidirectional Flow
PV Input (MPPT)
DC Load Output
High-Freq Isolation
Discharging Mode (Battery → Bus / Load)
MPPT PV Input (PV → Bus)
🛡️ Protection & Safety
Full high-frequency isolation · DSP+CPLD digital control · Multi-level hardware/software protection
❓ Frequently Asked Questions
🔗 Related Products
Non-isolated 300V-750V · Built-in high-frequency isolation transformer · 3rd-gen SiC devices
Battery side 30-100Vdc · Bus side 200-420Vdc · Reverse polarity · Overcurrent/overvoltage/overheat/short-circuit protection
Battery side 40-300Vdc · Bus side 350-850Vdc · Supports up to 32 units in parallel
3rd-gen semiconductor · Compact size · High efficiency · For C&I storage DC-coupled microgrids
150-1000Vdc wide range · Supports lithium, sodium, supercapacitors, and PV input
200-900V/90A · 3rd-gen semiconductor · 4 MPPT inputs · Primarily for PV power generation
🤝 Business & Services
ImaxPWR (Imax Power Technology Co., Ltd.) is a national high-tech enterprise specializing in new energy. As an original equipment manufacturer, we provide integrated energy storage products and system solutions covering bidirectional PCS, DC/DC, MPPT, hybrid inverters, AC integrated cabinets, and microgrid systems for islands, mines, oilfields, and regions across Asia, Africa, Latin America, Europe, and Australia. Driven by technology R&D and quality control, we support grid, microgrid, and charging station scenarios in their low-carbon transition, offering customized, reliable, and safe energy system solutions worldwide.
+86-13760212825
(WhatsApp / WeChat: COCO)
Imax Power Technology Co., Ltd.
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