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Electric Vehicle (EV) Offboard AC Charging Reference Designs

Electric Vehicle (EV) Charger Reference Designs

Our advanced AC EV charger reference designs are tailored to meet the diverse needs of residential and commercial applications. These designs collectively aim to reduce development time and costs, offer scalability and flexibility, enhance user experience and ensure regulatory compliance. We currently offer the following reference designs:

  • Single-Phase AC Residential EV Charger Reference Design: focuses on affordability and efficiency for homes and features integrated components and robust safety measures 
  • Three-Phase AC Commercial With OCPP and Wi-Fi® SoC EV Charger Reference Design: offers seamless connectivity and comprehensive safety features, ensuring high integration and reduced system costs for high-end residential and commercial settings
  • Three-Phase AC Commercial With OCPP and Display EV Charger Reference Design: enhances user interaction with its display feature while maintaining the same high standards of connectivity and safety

Design Benefits

Reduced Development Time and Cost

By providing complete reference designs with integrated features and protocols, we significantly cut down the development time and costs for manufacturers. 

Scalability and Flexibility

The designs are scalable, offering flexibility to meet various market demands, from residential to commercial applications

Enhanced User Experience

With advanced connectivity options and integrated features like energy metering and secure communication, these designs offer a superior user experience.

Regulatory Compliance

These reference designs are built to comply with industry standards and regulations, ensuring reliable and safe operation.

Explore These Reference Designs

Single-Phase AC Residential EV Charger Reference Design

This reference design was designed to achieve a lower overall system cost for residential applications where a single-phase supply is only available.

  • On-board relay and driver support power up to 7.4 kW
  • ATM90E26 provides up to 1% energy measurement accuracy with automatic calibration
  • Two simultaneous secure connection Bluetooth® LE stacks
  • Bluetooth LE smartphone app is available
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Three-Phase AC Commercial With OCPP and Wi-Fi SoC EV Charger Reference Design

This reference design is intended for high-end residential and commercial applications that require a high level of integration.

  • Integrated Wi-Fi MCU SoC module (WFI32)
  • On-board relay and driver support power up to 22 kW
  • ATM90E32AS provides up to 1% energy measurement accuracy with automatic calibration
  • Support for Wi-Fi, Ethernet and GSM/LTE communication to cloud with OCPP 1.6
Explore Details of Reference Design

Three-Phase AC Commercial With OCPP and Display EV Charger Reference Design

This reference design supports up to 22 kW with bi-directional charging capabilities and a modular architecture.

  • Integrated ATSAMA5D27-WLSOM1 System-On-Module (SOM) featuring a high-performance 32-bit Arm® Cortex®-A5 processor
  • On-board relay and driver support bi-directional power up to 22 kW
  • Graphical User Interface (GUI) with TFT screen and secure touch for NFC payment
  • Support for Wi-Fi, Ethernet and GSM/LTE communication to cloud with OCPP 1.6/ 2.0.1
Explore Details of Reference Design