Intelligent Control Board for DC Fast Charger / Complete Charging Electrical Control Solution

▌Core Intelligent Control Technology

• Single-Phase / Three-Phase Input Platform:
Supports 7kW single-phase input and 11kW / 22kW three-phase input solution development. According to different application scenarios, it can be configured for portable, wall-mounted, or fixed installation structures, meeting home, commercial, and light-operation charging needs.

• DC Charging Control Management:
The system supports closed-loop control of DC output voltage and current, enabling charging handshake, pre-charge, constant-current / constant-voltage charging, SOC information reading, charging stop, and abnormal interruption management, improving charging stability and vehicle compatibility.

• BMS Communication and Vehicle Identification:
Supports communication interaction with the vehicle BMS to complete charging parameter negotiation, charging status monitoring, fault information reading, and safety interlock control, adapting to mainstream DC charging communication processes.

• Intelligent Metering and Billing Function:
Can integrate energy metering, charging duration statistics, time-of-use billing, order records, balance deduction, offline billing, and backend billing management functions, suitable for commercial operation, internal park management, and fleet charging settlement scenarios.

• Multiple Charging Activation Methods:
Supports RFID card, QR code, Bluetooth, mini program, APP, backend remote start, local button start, and other activation methods. According to customer product positioning, simplified, operation-oriented, or connected versions can be configured.

• Multiple Communication Interface Expansion:
Supports Bluetooth, Wi-Fi, 4G, Ethernet, RS485, CAN, and other communication methods, and can connect to cloud platforms, operation backends, OCPP / MQTT / HTTP and other communication protocols, enabling remote monitoring, remote upgrade, fault reporting, and device operation and maintenance management.

• Human-Machine Interaction and Status Display:
Supports LED indicators, LCD / TFT displays, buzzers, emergency stop switches, charging plug status detection, electronic lock control, and fault code display, making user operation more intuitive and maintenance troubleshooting more efficient.

▌Safety Protection Design

• Input-Side Protection:
Integrates input overvoltage, undervoltage, overcurrent, short-circuit, phase loss, phase sequence abnormality, surge protection, grounding abnormality, and leakage current detection functions, improving operating safety under complex grid environments.

• DC Output Protection:
Supports output overvoltage, overcurrent, short-circuit, reverse connection detection, insulation detection, DC contactor adhesion detection, output residual voltage discharge, charging plug abnormality detection, and vehicle connection abnormality protection, reducing high-voltage DC system risks.

• Temperature and Thermal Management:
Can monitor power devices, heatsinks, charging plugs, cables, and internal ambient temperature, and supports fan speed control, overtemperature derating, overtemperature shutdown, and fault alarms to ensure long-term stable operation.

• Software Safety Strategy:
The system includes watchdog protection, communication timeout protection, charging state machine abnormality protection, fault lockout, operation log recording, remote fault diagnosis, and OTA upgrade capability, improving system reliability and later maintenance efficiency.

• Multiple Interlock Protection:
Supports emergency stop interlock, door access interlock, plug holder detection, electronic lock control, relay / contactor feedback detection, and other functions to ensure safe and controllable operation during plug-in, unplugging, startup, shutdown, and abnormal conditions.

▌Industrial Design Breakthroughs

• High-Reliability Electrical Control Architecture:
Uses strong / weak current separation, high / low voltage isolation, optimized safety clearance, grounding protection design, and anti-interference PCB layout to improve control system stability in high-voltage, high-current, and high-interference environments.

• Modular Development Capability:
According to customer requirements, the system can flexibly configure the main control board, communication board, metering board, RFID card module, display module, power drive module, and backend communication module, supporting rapid platform development for different power levels and enclosure structures.

• Compatible with Portable and Installed Products:
Supports portable low-power DC charging equipment, wall-mounted DC chargers, pedestal-mounted DC charging terminals, and customized enclosure structures, adapting to home, commercial, fleet, and mobile charging installation scenarios.

• Operation Platform Expansion Capability:
Supports device networking, remote start / stop, order management, charging records, fault alarms, user permissions, card management, OTA upgrade, and operation data statistics, meeting customer business expansion needs from hardware sales to charging operation.

▌Applicable Product Directions

• 7kW portable DC charger
• 11kW three-phase low-power DC charger
• 22kW wall-mounted / pedestal-mounted DC charger
• DC charging terminals for parks and vehicle fleets
• Low-power DC fast charging equipment for commercial parking lots
• Bluetooth / 4G connected intelligent charging terminals
• RFID card / QR code / billing-type operation charging equipment
• OEM / ODM customized new energy vehicle charging control solutions

Q1: If we require a quotation and samples, what documents should we provide?

A: Please provide us with the Gerber files and the BOM. We also welcome your original samples. Kindly share the specific details of this project. If you would like us to test the samples, please specify the test criteria.

Q2: Could you please provide me with some samples for reference?

A: Of course, to ensure product quality, we always produce new samples for our customers. The quality of these samples determines whether the product can proceed to mass production.

Q3: Can you offer us your best price?

A: Of course, we are a professional manufacturer with 30 years of experience. We have an extensive supply chain, enabling us to offer you more competitive prices than trading companies.

Q4: How long is the estimated delivery time after placing an order?

A: For new samples, we will complete them within 10–15 days. For bulk orders, we typically require 15–20 days. The final delivery time depends on the design.

Q5: What method do you use to ship the products?

A: We ship samples via DHL, UPS, and FedEx. For bulk orders, we can arrange air or sea freight. If you have a preferred shipping method, please let us know so we can coordinate logistics accordingly.

Q6: Can I schedule a visit to your factory?

A: No problem— we look forward to welcoming you and showcasing our factory’s capabilities. Please feel free to contact us. Thank you.