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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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High-Resolution PPG Outputs

ppg_e

Moving distance and speed of a rotor of an ultrasonic motor are controlled by frequency, amplitude and a time interval of the ultrasonic wave. Toshiba has produced TX03 series microcontrollers incorporating high-resolution PPG outputs. The microcontrollers achieve quite fine control in the moving distances of rotors.

Operating Principle of Ultrasonic Motor

ppg01_e

An ultrasonic motor is driven by ultrasonic waves of which frequency is more than 20kHz. A rotor is moving on a stator which transfers the ultrasonic waves. Piezoelectric devices generate up-and-down movement when AC voltage is applied to. The stator transfers the movement from the bottom to the surface. A traveling-wave to the right on the stator pushes the rotor toward opposite direction, that is, to the left. Because the up-and-down swings at the stator surface make counterclockwise rotation, which results in the rotor’s movement to the left.

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Microcontrollers products incorporating a High-resolution PPG output are displayed.

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