Bidirectional High-Frequency Isolated DC/DC Module

【Application Areas】 Multi‑energy complementary application scenarios for “PV‑storage‑charging” or “storage‑charging” systems: 1. Multi‑energy complementarity applications, such as large‑scale charging stations or battery‑swap stations: Integrated “PV‑storage‑charging” or “storage‑charging” charging stations utilize clean energy for power supply, storing electricity generated through photovoltaic (PV) generation. The PV system, energy storage, and charging infrastructure form a microgrid that intelligently interacts with the public grid according to demand, supporting both grid‑connected and off‑grid operating modes. The energy storage system also mitigates the impact on the local grid caused by high‑current charging at charging piles, while smoothing peak loads and filling valleys to earn price differentials. By adopting a common DC bus power supply scheme, PV generation, energy storage, charging piles, and DC‑DC loads are interconnected, reducing AC‑DC conversion stages, lowering investment costs, and improving overall system efficiency. 2. Vehicle‑to‑Grid (V2G) energy storage for electric vehicles: This involves bidirectional DC charging piles capable of both charging and discharging, enabling controlled two‑way energy exchange between electric vehicles and the grid. It allows EVs to charge during low‑price periods or off‑peak hours and discharge during peak times, helping owners capture price arbitrage opportunities. Additionally, it enhances load flexibility, reduces distribution network investment, facilitates integration of clean energy, and supports the development of the EV industry while minimizing land use for public charging infrastructure. 3. Storage‑charging‑inspection: By discharging new‑energy vehicles or battery packs, this approach can verify battery capacity and assess the degree of capacity degradation. Onboard Mobile Energy Storage Mobile energy storage vehicles equipped with high‑capacity batteries, combined with this DC‑DC module, enable diverse application scenarios, including vehicle charging and supplying power to DC loads. Electric vehicles can use this DC‑DC module to power DC loads, realizing Vehicle‑to‑Load (V2L) energy storage functionality.

This DC/DC The module employs high-frequency isolated bidirectional conversion technology—specifically, soft-switching resonant technology—offering high efficiency and enabling bidirectional energy flow with automatic switching between charging and discharging; it adopts… DSP+CPLD Design, supports module parallel operation, supports CAN/RS485 Communication, enabling seamless communication and control with third-party devices.

This power module supports MPPT Photovoltaic integration, integrated MPPT Functionality is widely applied in common DC bus‑based scenarios, such as solar‑storage‑charging, storage‑charging, storage‑charging‑testing, second‑life battery energy storage, and vehicle‑to‑grid interaction. V2G In scenarios involving multi‑energy complementary systems, high‑frequency isolation is implemented between the battery and the DC bus.

 

[Product Advantages]

More secure and reliable

Full high-frequency isolation design ensures safety between the battery and the DC bus.

DSP+CPLD Fully digital control, with multi-level hardware and software protection against overcurrent, overvoltage, and overheating, ensuring safety and reliability.

Reliable parallel operation for easy power scaling, up to 16 The modules are connected in parallel.

 

Higher efficiency

DC/DC Employing soft-switching resonant technology, the maximum efficiency reaches 97%；

Compared to traditional non-isolated designs DC/DC , in system applications, the elimination of the mains-frequency transformer results in higher high-frequency isolation efficiency, reaching up to 97% That is all.

 

More intelligent and user-friendly

Covering passenger vehicles ( 40V~750Vdc ) Multiple battery voltage levels, with a wide battery voltage range;

A wider DC bus voltage facilitates connection to various DC bus specifications.

 

Support MPPT Photovoltaic Integration

Support MPPT Photovoltaic integration, integrated MPPT Functionality applicable to integrated photovoltaic–storage–charging–inspection charging stations with a common DC bus. ；

 

More flexible configuration

Supports standard rack mounting and features a compact design.

Modular hot-swappable design for flexible system configuration;

This enables system integrators to flexibly design various configurations, including energy storage‑charging systems, solar‑storage‑charging systems, storage‑charging‑inspection systems, or standalone energy storage systems.