Reference design adds Wi-Fi to EV charging stations
Believed to be the industry’s first Wi-Fi-enabled EV charger reference design, Texas Instruments offers a design using its SimpleLink Wi-Fi microcontroller. It can be used to create remote monitoring and charge control opportunities for home and public charging stations.
According to the company, it allows design engineers to create stations that intelligently charge at non-peak times or detect and communicate when a charging station is available.
The reference design supports Level 1 charging, which is compatible with household outlets, as well as Level 2 EV charging, which helps vehicle owners tap into higher current (15 to 30A and more, using larger relays) connections available in commercial office buildings. Level 2 chargers typically take up to eight hours to fully charge the vehicle.
Later this year, the company plans to introduce a Level 3 EV DC charger reference design scalable to 600V and 400A that cuts charging time down to 20 to 30 minutes.
For convenience and accessibility, Wi-Fi connectivity support can be from any smartphone, tablet, computer or smartTV, using SimpleLink Wi-Fi technology. It can also be expanded to support other applications such as payment, authentication and home automation design, says the company.