FREQUENCY-VOLTAGE CONVERTER AND SPEED DETECTOR

摘要

PURPOSE:To obtain a detecting output indicating the instantaneous speed at every completing time of one cycle of an FG pulse. CONSTITUTION:The acceleration is obtained by a cycle detecting part 13 and a predicting part 14 from the average speed which is an inverse number of the cycle for a frequency signal of the frequency proportional to the rotating speed of a motor 10 obtained by a frequency signal generating part 11. The instantaneous speed is predicted basing on the acceleration.