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EV Charger Wall Box with High-End HMI

Overview

This system is a versatile 1 to 3-phase AC Electric Vehicle (EV) charger wall box, offering configurations of 1-Phase 3.7kW/16A, 7.4kW/32A, or 3-Phase 11kW/16A, 22kW/32A, with multiple IoT connectivity options. It features a primary application MCU that performs supervisory functions and communicates with the vehicle. Multiple Pmod™ extensions are attached to the application MCU, providing connectivity and metrology functions. The system can also be expanded using a single board computer (SBC) to offer high-end touch display functionality.

System Benefits​:

  • OCPP Car2Charger I/F, IEC 62196-2 ready, Type 1 or Type 2
  • Metrology Pmod boards are available upon request for rapid prototyping
  • Multiple communication interfaces can be added via Pmod extensions
    • Ethernet/Wi-Fi for Internet connectivity
    • Bluetooth® for smartphone/tablet integration
    • NFC for user authentication and billing

Block Diagram

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Test This Board Remotely

Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
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4:3 ratio Cable to Car Cable to Car Cable to Car L1' L1' L1' L2' L2' L2' L3' L3' L3' N’ N’ N’ PE’ PE’ PE’ .235 Sheet.236 Sheet.237 Sheet.238 Sheet.239 Sheet.240 Sheet.241 Sheet.242 Sheet.243 Sheet.244 Sheet.245 Sheet.246 Sheet.247 .222 Sheet.223 Sheet.224 Sheet.225 Sheet.226 Sheet.227 Sheet.228 Sheet.229 Sheet.230 Sheet.231 Sheet.232 Sheet.233 Sheet.234 Sheet.1 Sheet.2 Sheet.3 Sheet.4 EU142 EU142 EU142 Isolated AC/DC/18W Isolated AC/DC/18W Isolated AC/DC/18W 1ph or 3ph Mains Input 1ph or 3ph Mains Input 1ph or 3ph Mains Input LCD Graphic UI LCD Graphic UI LCD Graphic UI CapTouch Controller CapTouch Controller CapTouch Controller MIPI/DSI MIPI/DSI MIPI/DSI I2C I2C I2C OCPP-IF PHY Isolation OCPP-IF PHY Isolation OCPP-IF PHY Isolation Modules/Pmods Modules/Pmods Modules/Pmods Ethernet Magnetics + LEDs Ethernet Magnetics + LEDs Ethernet Magnetics + LEDs Sheet.51 Sheet.52 Sheet.53 Sheet.54 Sheet.57 Sheet.58 Sheet.59 Sheet.61 Sheet.62 Sheet.63 Sheet.64 Sheet.84 Sheet.85 Sheet.86 Sheet.87 Sheet.88 Sheet.91 Sheet.92 Sheet.94 Sheet.95 Sheet.99 Sheet.101 Sheet.104 Sheet.105 Sheet.106 Sheet.108 Sheet.109 Sheet.123 Sheet.124 Sheet.126 Sheet.127 Sheet.131 5V 5V 5V Sheet.133 Connector 1.156 3V31Apk 3V31Apk 3V31Apk Connector 1.156.137 12V 12V 12V 1.5Amax 1.5Amax 1.5Amax 230Vac 230Vac 230Vac 12V 0.45Amax 12V 0.45Amax 12V 0.45Amax L1 L1 L1 L2 L2 L2 L3 L3 L3 N N N PE PE PE Connector 1.156.147 Sheet.152 Sheet.153 Relais 400V/32A Relais 400V/32A Relais 400V/32A Sheet.170 Sheet.171 Sheet.172 Sheet.173 Sheet.174 Sheet.175 Sheet.176 Sheet.166 Sheet.167 Sheet.168 Sheet.169 12V 12V 12V Sheet.178 Sheet.181 Connector 1.156.182 Connector 1.156.183 0.15Amax 0.15Amax 0.15Amax 0.15Amax 0.15Amax 0.15Amax 0.15Amax 0.15Amax 0.15Amax Sheet.179 Sheet.119 Sheet.203 Relais 400V/32A Relais 400V/32A Relais 400V/32A Sheet.220 Sheet.221 Sheet.250 Sheet.251 Sheet.252 Sheet.253 Relais 400V/32A Relais 400V/32A Relais 400V/32A Sheet.255 Sheet.256 Sheet.262 Sheet.263 Sheet.259 Sheet.260 Sheet.90 Sheet.93 11 11 11 11 Sheet.269 Horizontal Wire Bundle Communication Lines B.795 N n n Horizontal Wire Bundle.273 Communication Lines B.795 2 2 2 3 Communication Lines B.795 3 3 3 2..4 2..4 2..4 2..4 Sheet.282 Connector 1.156.283 *SPI, I2C, UART or USB *SPI, I2C, UART or USB *SPI, I2C, UART or USB Optional CLK from SOM Optional CLK from SOM Optional CLK from SOM Sheet.287 Sheet.288 Connector 1.156.289 Sheet.290 Connector 1.156.291 Negative Power Rail Line.758 Line.759 Ethernet Ethernet Ethernet Sheet.296 OCPP OCPP OCPP Sheet.307 Sheet.310 3/4ch Voltage & Current Sense 3/4ch Voltage & Current Sense 3/4ch Voltage & Current Sense 3V3 3V3 3V3 Sheet.65 Sheet.66 Connector 1.156.319 0.5Amax 0.5Amax 0.5Amax Sheet.324 Sheet.325 Connector 1.156.326 Connector 1.331 Sheet.339 Sheet.340 Connector 1.341 Sheet.345 Sheet.346 Sheet.348 3ph*2 3ph*2 3ph*2 .359 Label Text 10pt.1046 Sheet.365 Sheet.366 Sheet.369 3Apk 3Apk 3Apk 2 2 2 2 Sheet.373 2 2 2 2 Sheet.376 3*2 3*2 3*2 3*2 Sheet.379 2 2 2 2 Sheet.385 Sheet.386 SOM Module SOM Module SOM Module 5Vin 5Vin 5Vin MIPI/DSI MIPI/DSI MIPI/DSI I2C I2C I2C Gbit Ethernet Gbit Ethernet Gbit Ethernet Clk Clk Clk SCI* SCI* SCI* Sheet.387 MCU Realtime Operations & I/F mux MCU Realtime Operations & I/F mux MCU Realtime Operations & I/F mux Vdd Vdd Vdd SCI* SCI* SCI* Int. Osc. Int. Osc. Int. Osc. GPIO 3x GPIO 3x GPIO 3x UART UART UART UART UART UART SPI SPI SPI GPIO GPIO GPIO PWM PWM PWM UART UART UART UART UART UART Sheet.388 Module Metering Module Metering Module Metering Module Metering Module Metering Module Metering UART UART UART Wi-Fi Pmod Wi-Fi Pmod Wi-Fi Pmod LTE-M Module LTE-M Module LTE-M Module Sheet.389 NFC NFC NFC SPI SPI SPI Sheet.329 Sheet.330 Sheet.354 DC/DC Buck DC/DC Buck DC/DC Buck DC/DC Buck 12V/5A DC/DC Buck 12V/5A DC/DC Buck 12V/5A nFET Load Switch 22V/3A 1 nFET Load Switch 22V/3A nFET Load Switch 22V/3A nFET Load Switch 22V/3A 2 nFET Load Switch 22V/3A nFET Load Switch 22V/3A nFET Load Switch 22V/3A 3 nFET Load Switch 22V/3A nFET Load Switch 22V/3A

DC/DC Buck 12V/5A

Buck Regulators (Integrated FETs)

DC/DC Buck

Buck Regulators (Integrated FETs)

Isolated AC/DC 18W

Flyback & Forward Controllers

SOM Module

A single-board computer (SBC) is commonly made as a demonstration or development system for educational usage. It can also be used for an embedded computer controller utilizing different, but standardized form factors like RPI, Qseven or 96Boards.
View Diagram

MCU Realtime Operations & I/F mux

RA Arm Cortex-M MCUs
RA Arm Cortex-M MCUs

Wi-Fi PMOD

Low Power Wi-Fi
Low Power Wi-Fi

Module Metering

RL78 Low-Power 8 & 16-Bit MCUs

NFC

NFC
NFC
  • PTX100REK
    PTX100R POS/IoT NFC Reader Demonstration Kit

nFET Load Switch 22V/3A

Load Switches

nFET Load Switch 22V/3A

Load Switches

nFET Load Switch 22V/3A

Load Switches

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News & Blog Posts

Blog Post
Jan 17, 2025
Transforming EV Charging with Advanced Connectivity