Reference design trio covers EV chargers

Microchip has released three flexible and scalable EV charger reference designs for residential and commercial charging applications. These reference designs include a single-phase AC residential model, a three-phase AC commercial model that uses the Open Charge Point Protocol (OCPP) and a Wi-Fi SoC, and a three-phase AC commercial model with OCPP and a display.

The reference designs offer complete hardware design files and source code with software stacks that are tested and compliant with communication protocols, such as OCPP. OCPP provides a standard protocol for communication between charging stations and central systems, ensuring interoperability across networks and vendors.

Most of the active components for the reference designs, including the MCU, analog front-end, memory, connectivity, and power conversion, are available from Microchip. This streamlines integration and accelerates time to market for new EV charging systems.

The residential reference design is intended for home charging with a single-phase supply. It supports power up to 7.4 kW with an on-board relay and driver. The design also features an energy metering device with automatic calibration and two Bluetooth LE stacks.

The three-phase commercial reference design, aimed at high-end residential and commercial stations, integrates an OCPP 1.6 stack for network communication and a Wi-Fi SoC for remote management. It supports power up to 22 kW.

Catering to commercial and public stations, the three-phase commercial reference design with OCPP and a TFT touch-screen display supports bidirectional charging up to 22 kW.

To learn more about Microchip’s EV charger reference designs, click here.

Microchip Technology 

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