Solution Overview
The reliability of an Electric Vehicle (EV) charging station is critically dependent on its auxiliary power system. This system powers the main controller, human-machine interface (HMI), communication modules, and safety relays. Our solution, built around MORNSUN's specialized power modules, addresses the key challenges of this application: wide input voltage range, harsh outdoor temperature fluctuations, high electromagnetic interference, and the need for long-term reliability.
System Block Diagram
Core Advantages
- High Reliability: Utilizes industrial-grade components with a wide operating temperature range (-40℃ to +85℃).
- Superior EMC Performance: Modules are designed to meet CISPR32/EN55032 Class B standards, ensuring stable operation in noisy electrical environments.
- Compact & Integrated: Highly integrated modules save valuable PCB space and simplify the design process.
- Safety Compliance: Products meet key safety standards, ensuring safe operation for both the equipment and the end-user.
Recommended Bill of Materials (BOM)
| Function | Recommended MORNSUN Model | Key Features |
|---|---|---|
| Main AC/DC Power | LM75-20B24 | 75W, Universal Input, High EMC Perf. |
| Controller Power (DC/DC) | URB2405YMD-6WR3 | 6W, 4:1 Wide Input, 3kVDC Isolation |
| HMI Display Power | K7805-500R3 | Non-isolated POL, High Efficiency |
| CAN Bus Isolation | TD501DCAN | Integrated CAN Transceiver & Isolation |