[原创]Renesas IPS22 电感式位置传感高速马达换相解决方案

Renesas公司的IPS220是电感式位置传感器,可为工业电机提供对杂散磁场完全免疫，重量轻，成本低且薄型的设计.器件符合工业标准,可在恶劣环境和-40°C 至+125°C的环境温度下稳定运行. 接口为正/余弦单端或差分,电源电压为3.3V±10％或5.0V±10％,转速最高250,000 rpm(电周期).可编程传输延迟,小于10µs,采用正/余弦增益失调和偏移补偿,具有过压,反极性与短路保护,数字编程接口为I²C 或 SPI. 传感器具有高精度, ≤ 0.2%满刻度.旋转检测高达360º角度,主要用在无刷DC马达旋转位置检测,无刷旋转变压器和无磁转子转速传感器,满足了多极对电机和离轴应用的要求.本文介绍了IPS2200主要特性,多种应用配置图,以及评估板IPS2200STKIT主要特性,电路图和材料清单.

The IPS2200 is a magnet-free, inductive position sensor ICs that can be used for high-speed absolute position sensing in automotive, industrial, medical, and consumer applications. The IPS2200 uses the physical principle of eddy currents to detect the position of a simple metallic target that is moving above a set of coils, consisting of one transmitter coil and two receiver coils.

The three coils are typically printed as copper traces on a printed circuit board (PCB). They are arranged such that the transmitter coil induces a secondary voltage in the two receiver coils, which depends on the position of the metallic target above the coils.

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