PCIM Europe 2026

AKM has started mass production of the CZ3K series current sensors, which are highly compatible with single-stage topologies and contribute to the miniaturization and improved efficiency of on-board chargers (OBCs).

At PCIM Europe 2026, AKM will present a demonstrator that visualizes high-speed triangular wave current measurement simulating the steep current change rates (dI/dt) required in systems using SiC and GaN power devices.

In addition, through joint technical validation with Silicon Austria Labs (SAL), AKM has developed an eFuse system that addresses the challenges of protection systems relying on conventional mechanical fuses. Along with these results, AKM will introduce a concept of eFuse technology aimed at significantly improving safety and reducing system cost in applications such as automotive OBCs.

EV power electronics systems—including traction inverters, DC/DC converters, and battery management systems (BMS)—face numerous challenges, such as performance enhancement and miniaturization. 

To address these challenges, AKM has developed the EZ232L series, an external conductor type coreless current sensor capable of handling large currents of several hundred amperes or more. Mass production is scheduled to begin soon. Compared to conventional cored type current sensors, it maintains equivalent key characteristics while enabling significant downsizing of systems such as traction inverters.

At PCIM Europe 2026, AKM will also showcase a module-type coreless current sensor solution that combines this product with Asahi Kasei’s heat-resistant and high-strength resin. This solution contributes to greater design flexibility and simplifies compact and high-voltage-resistant system design.