Inductive Position Sensors

Renesas’ contactless position sensor solutions are magnet-free, significantly reducing materials costs while providing immunity to magnetic stray fields – a mandatory requirement for many applications. The inductive position sensors interface with low-cost PCB-based coils and simple metallic targets, providing single-chip design flexibility for rotary on-axis (end-of-shaft) and off-axis (side-shaft or through-shaft) sensors, as well as linear and arc position sensors; from small angles up to full 360° absolute angle sensing. The design of the multi-sector rotary sensors provides a massive improvement in sensor accuracy for small angular measurements or sensors with a large number of pole pairs. The devices are ideal for use in a wide range of motor commutation applications in industrial, medical, and consumer markets.