Mastering IC-CPD Design: Essential Hardware and Software Guidelines for In-Cable Control and Protection Devices

This article focuses on Type 2 electric vehicle supply equipment (EVSE) design. The rules that must be followed when building an EVSE are found in the IEC 61851-1 standard, and the specific rules for EVSE Type 2 are available in the supplementary standard, IEC 62752. The guidelines follow the standards and are exemplified by the new reference design from Analog Devices. The negotiation between an electric vehicle (EV) and an EVSE during a charging session is presented through the control pilot (CP) waveform, highlighting the states defined in the standard. The waveforms together with the presented debug messages validate the guidelines and offer a better understanding of the EV charging process, thus making the design process easier.