DIGITAL FOLLOW-UP SYSTEM

摘要

A digital follow-up system comprises a synchronous machine (1), on the shaft (2) of which is mounted a position pick-up (3) connected through its output (4) to a unit (6) for determining the code of the displacement angle between the actual and desired positions of the shaft, to the output of which are connected a unit (9) for forming the displacement angle module code, a converter (8) of the displacement angle into a pulse sequence and the controlling input of a reversing unit (21). To the output of the unit (9) are connected a multiplexor (12) and a unit (10) for forming the code of the stator magnetic field amplitude, to the output of which are connected the inputs (17, 16) of a former (18) of width-pulse sequences and of the multiplexor (12), the output of which is connected to the input (19) of the former (18) and its inputs (13, 14) - to the output of the converter (8) and to the output (15) of the pick-up (3). To the outputs of the former (18) are connected the inputs (20, 22) of mutually reversing unit (21) and of a unit (23) for generating the current in the stator windings interconnected to one another, the latter being connected to the stator windings of the synchronous machine (1).