Microchip Technology has announced three flexible and scalable EV charger reference designs including a single-phase AC residential, a three-phase AC commercial with open charge point protocol (OCPP) and system-on-chip (SoC), and a three-phase AC commercial with OCPP and display. The company says they’ll accelerate the time to market of an EV charger, helping EV manufacturers in their quest to drive global market adoption.
Most of the active components for the EV charger reference designs are available from Microchip, including the microcontroller (MCU), analog front-end, memory, connectivity and power conversion. This significantly streamlines the integration process, enabling manufacturers to speed time to market for new charging solutions.
Microchip’s EV charger reference designs enable manufacturers to scale depending on the target market with a range of solutions to meet the needs of residential and commercial charging applications. These reference designs offer complete hardware design files and source code with software stacks that are tested and compliant to communication protocols, including OCPP. OCPP offers manufacturers a standard protocol to communicate between the charge point or charging station and a central system. This protocol is designed to enable interoperability of the charging applications regardless of the network or vendor.
Highlights of Microchip’s EV Charger Reference Designs
The Single-Phase AC Residential EV Charger Reference Design offers a cost-effective and convenient solution for home charging, where a single-phase supply is used. The on-board high-performance energy metering device with automatic calibration simplifies the production process. The design has integrated safety protection features including Protective Earth Neutral (PEN) fault detection and Residual Current Device (RCD) detection.
The Three-Phase AC Commercial with OCPP and Wi-Fi® SoC EV Charger Reference Design is intended for high-end residential and commercial charging stations. It features OCPP 1.6 stack integration for communication with charging networks and Wi-Fi SoC for remote management.
TheThree-Phase AC Commercial with OCPP and Display EV Charger Reference Design caters to commercial and public charging stations with a focus on robust operation including a completed architecture review according to UL 2231. It is designed to support up to 22 kW with bidirectional charging capabilities and a modular architecture. The design also features a robust Graphical User Interface (GUI) with a Thin-Film Transistor (TFT) screen and touch input designed to withstand harsh environments.
“Microchip’s E-Mobility team is focused on developing reference designs that our customers can directly use and benefit from. We want to help our customers shorten design cycles by offering complete solutions such as these new EV charger references designs, while also supplying the hardware, software and technical support.”
Joe Thomsen, corporate VP of Microchip’s digital signal controller business unit
