Absolute Inductive Position Sensor

This simple and cost-effective design utilizes off-the-shelf components like a standard PCB, a Renesas' position sensor, passive components, and a metal piece as a target. The sensing element consists of a set of coils on the PCB rather than inside the Renesas IC, allowing the sensor system to be tailored to specific customer applications. This flexibility enables the sensor system to be customized to the customer's needs. It uses dual inductive position sensors (IPS) for absolute position detection, optimizes coil size, and aligns with market trends such as 35mm motors.

System Benefits​:

• Offers a budget-friendly solution while supporting high speeds up to 250,000 RPM.
• Customizable for customer applications, supporting all three mechanical embodiment phases, with the number of motor pole pairs matching sensor sectors.
• The MCU includes three ADC units with channel-dedicated sample and hold functions, allowing AD conversion to start with a synchronous trigger.
• Provides high accuracy with an actual resolution of 15-bit and 12-bit accuracy.