Absolute Inductive Position Sensor

This solution is simple and cost-effective as it consists of components that are off the shelf: A standard PCB, a Renesas position sensor, some passive components and a piece of metal as a target.

The sensing element is not inside the Renesas IC but is a set of coils on the PC board. The beauty of this is that the sensor as a system can be tailored and designed around the customer’s application. It uses dual inductive position sensors (IPS) for absolute position detection, optimizes the coil size, and the module package ties in with market trends (35mm motor).

System Benefits​:

• Cost-effective and supports much higher speeds up to 250000RPM
• The solution can be designed around the customer application, as it supports all three mechanical embodiment phases and the number of the pole pairs of the motor can be matched to the number of the sectors of the sensor.
• The MCU has three units of ADC with channel-dedicated sample and hold function. AD conversion start can start with the synchronous trigger.
• High accuracy: Actual resolution: 15-bit, Accuracy: 12-bit