Overview
As an energy storage and grid interaction terminal, new energy charging piles are highly susceptible to DC leakage and mains over/under voltage faults due to their mixed AC/DC power supply circuits. They also require timed start/stop charging management, necessitating stringent safety protection standards.
Rynova has developed a complete set of protection and control chips specifically for charging pile scenarios. Its fluxgate-type Type B leakage protection solution accurately captures residual AC/DC current, its over/under voltage chip monitors the grid voltage in real time, and its timing IC enables scheduled charging. Fully compliant with IEC61851 and GB/T40820 charging pile standards, these chips eliminate equipment and personal safety risks caused by leakage and voltage anomalies.
Design Requirements
Type B fully compatible leakage current detection, meeting the mandatory standards for DC leakage current protection in charging piles.
Graded overvoltage/undervoltage identification; automatically cuts off the charging circuit in case of voltage abnormalities.
Supports scheduled charging with multi-stage customizable control logic.
High anti-interference circuit design, adaptable to the high-power electromagnetic environment of charging piles.
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Timer chip
OVP over and under voltage protection chip
Leakage protection chip