TA7259P/F/FG

2006-4-14

6

Position sensing drive

Both constant current drive and constant voltage drive are available because the same-phase voltage range

We recommend use of the TOSHIBA THS series of Ga-As position sensing devices.

In comparison with an In-Sb position sensor, the Ga−As sensor is mechanically stronger, has better

temperature characteristics, and is less prone to saturation by magnetism or current. However, its application

has been limited by its lower sensitivity when compared with the In-Sb type.

As for the TA7259, a Ga-As position sensor can be applied by improving the sensitivity of its input amp and

reducing the offset. When W/F characteristics are poor, increasing the position sensing input may be effective.

However, take care not to exceed the maximum permissible input.

(For details, refer to the technical documents of the Toshiba THS series of Ga-As position sensing devices.)

Position sensing drive (1)