EVSEPowerBoard
No description available
The EVSEPowerBoard is a three-phase AC power board for EV charging stations delivering up to 22 kW.
It handles the power switching, measurement, and safety logic according to IEC 61851-1 / SAE J1772 standards.
Designed for integration with a high-level controller such as the EVSEControlBoard, it provides a complete open-source hardware platform for AC charging.
🎯 Purpose
- 🔋 Power Management: Controls and monitors power delivery up to 22 kW.
- ⚙️ Safety & Protection: Integrated GFCI, relay monitoring, and over-current detection.
- 📡 Signal Interface: Generates and reads Control Pilot (CP) and proximity signals.
- 🧠 Microcontroller-Based: Embedded STM32 for real-time logic and communication.
- 🔌 Flexible Integration: Works standalone or as part of a smart charger system.
📝 Features
| 🏷️ Feature | 🔍 Description |
|---|---|
| ⚡ Three-Phase Power Switching | 35 A relay with mirror contacts and PWM coil control |
| 🧮 Integrated Power Metering | Shunt-based voltage, current, and energy measurement on all phases |
| ⚠️ Ground Fault Detection | GFCI for 5/6 mA DC and 20/30 mA AC faults |
| 🔄 Control Pilot Generation | IEC 61851-1 / SAE J1772 compliant |
| 📶 Zero-Cross Output | TTL signal synchronized to L1 for PLC modem |
| 🧰 Communication Interfaces | UART, RS485/ModBus, GPIO, SPI LCD connector |
| 💾 FRAM Storage | Non-volatile energy and status data |
| 🔋 Power Supply | 110/230 V AC → 12 V DC onboard or external input |
| 🧩 Programming Port | TagConnect TC2030 for STM32 debug and firmware upload |
| 🧱 Reinforced Isolation | 4 kV barrier meeting IEC 61851-1 creepage and clearance rules |
📐 PCB Design Preview
| 📜 Schematic | 🖥️ PCB Layout | 🏗️ 3D |
|---|---|---|
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