Open Charge Point Protocol (OCPP) is used to communicate between a networked charging station and a networked charge management system. At present, the charging stations can connect to OCPP, but with this solution, standalone EV chargers can also connect to the OCPP server to authorize EVs, configure charger configurations remotely, get real-time alerts, session controls, faults, etc. This gives users and manufacturers flexibility to use any charger, any EV system with the freedom of charging technique like CHAdeMO or Type-2 CCS.

System Benefits​:

  • CHAdeMO, Type-2 CCS connectors for flexible use with CAN or PWM communication.
  • Network interfaces like GSM, Wi-Fi and Bluetooth® Low Energy (LE) give the flexibility to interface with the charger and inform about the battery type and vehicle.
  • The system can be connected to 3.3KW or any charger through SPI/PMOD as an interface card.
  • The PWM timers of the RX66T MCU (in the 3KW Off-Board Electric Vehicle (EV) Charger solution) are used for HB-LLC; the RA2L1 MCU is used for the OIC card to interface with a vehicle through the charging gun.




  • EV charging station
  • OCPP interfacing network card
  • EV charge plug solution

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16:9 AS054 AS054 AS054 Sheet.126 Sheet.122 Sheet.125 Sheet.123 Sheet.110 Sheet.111 Sheet.113 Sheet.115 Sheet.117 Sheet.119 Sheet.124 Sheet.112 Sheet.114 Sheet.116 Sheet.118 Sheet.120 Sheet.121 Charge Gun Non-Renesas Component Sheet.17 Sheet.18 Sheet.19 Charge Gun.129 Non-Renesas Component Sheet.131 Sheet.132 Sheet.133 CAN Transceiver CAN Transceiver CANTransceiver Board - Optional Sheet.71 Sheet.73 Connector Line.157 Connector Line Connector Line.164 Connector Line.165 Connector Arrow GSM GSM GSM Connector Arrow.169 Connector Arrow.170 Connector Line.171 Connector Arrow.173 Connector Arrow.174 Connector Arrow.175 Connector Arrow.176 Connector Line.177 Connector Line.178 Connector Line.179 Connector Line.181 Connector Line.182 Connector Line.183 Connector Line.184 Connector Arrow.185 Connector Arrow.186 Connector Line.187 Connector Line.188 Connector Arrow.189 Connector Line.190 Connector Arrow.191 INPUT INPUT INPUT CSS Type-2 Charge Gun CSS Type-2 Charge Gun CSS Type-2 Charge Gun CHAdeMO Charge Gun CHAdeMO Charge Gun CHAdeMO Charge Gun 12V/50mAmax 12V/50mAmax 12V/50mAmax 3.3v/500mAmax 3.3v/500mAmax 3.3v/500mAmax PMOD 2A MCU Interface Connector PMOD 2A MCU Interface Connector PMOD 2A MCU Interface Connector 3.3V 20mA 3.3V 20mA 3.3V 20mA 3.3V/350mAmax 3.3V/350mAmax 3.3V/350mAmax 12V/50mAmax.201 12V/50mAmax 12V/50mAmax Connector Line.202 Connector Line.203 Connector Line.204 Connector 1 Connector 1.206 Connector 1.207 Sheet.215 Sheet.211 1 1 1 1 Sheet.217 1 1 1 Sheet.219 Sheet.220 2 2 2 Sheet.222 Sheet.223 2 2 2 Sheet.228 Communication Lines B.554 2 2 2 Sheet.231 Sheet.232 2 2 2 Sheet.234 Sheet.235 2 2 2 Sheet.237 Sheet.238 4 4 4 Sheet.240 Sheet.241 1 1 1 Sheet.246 Communication Lines B.554 2 2 2 Connector 1.249 Connector Line.250 VCC VCC VCC Sheet.278 MCU MCU MCU ADC ADC ADC PWM PWM PWM VDD VDD VDD SPI SPI SPI UART UART UART CAN CAN CAN ADC ADC ADC GPIO GPIO GPIO SPI SPI SPI UART UART UART Bluetooth Low Energy BLE Bluetooth Low Energy Bluetooth Low Energy VCC VCC VCC UART UART UART Wi-Fi Wi-Fi Wi-Fi Wi-Fi VCC VCC VCC SPI SPI SPI
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