| 摘要 |
PROBLEM TO BE SOLVED: To employ a simple and inexpensive standard microprocessor by employing an r.p.m. controller for electric motor having means responsible for the analog processing part of control algorism independently from a computer unit. SOLUTION: A computer unit 22 comprises an analog unit 28 connected, on one side, with the digital output side 32 through a D/A converter 30 and, on the other side, with the analog input side 34 of the computer unit 22. Difference between actual r.p.m. and a target r.p.m. is fed by signals 16, 18 to the computer unit 22 responsible for processing of the actual value signal 18 and the target value signal 16 and control of a regulation element 26. Processing of control algorithm is performed by the analog unit 28. Consequently, the computer unit 22 can be constituted as a relatively simple microprocessor. |
