Electricity: motive power systems – Positional servo systems – Pulse-width modulated power input to motor
Patent
1996-08-02
1999-12-07
Sircus, Brian
Electricity: motive power systems
Positional servo systems
Pulse-width modulated power input to motor
318615, G05B 1128
Patent
active
059989548
ABSTRACT:
Electrical actuator having a stator body and a rotor body which is pivotable iN the stator body through an angle of rotation. The actuator further comprises energizing means for exerting an electromagnetic torque on the rotor body and a control unit for controlling the angle of rotation. The control unit has a cascade control structure with a first control member for converting an electrical input signal corresponding to a required angle of rotation into an electrical intermediate signal corresponding to a required electromagnetic torque to be exerted on the rotor body and with a second control member for converting the intermediate signal into an output signal corresponding to a required electrical current through the energizing means. The first and second control members allow for specific intermediate calculations of the required electromagnetic torque and the required current, whereby the response time and accuracy of the control unit are improved.
REFERENCES:
patent: 4276499 (1981-06-01), Masuda et al.
patent: 4911125 (1990-03-01), Sugawara et al.
patent: 5157956 (1992-10-01), Isaji et al.
patent: 5333584 (1994-08-01), Kamio et al.
patent: 5428285 (1995-06-01), Koyama et al.
patent: 5429087 (1995-07-01), Tsujino et al.
patent: 5463298 (1995-10-01), Kamio et al.
patent: 5619112 (1997-04-01), Younessi et al.
patent: 5623906 (1997-04-01), Storhok
patent: 5640943 (1997-06-01), Tasaka et al.
Control of Electrical Drives: by W. Leonhard, ISBN 3-540-13650-9 Springer-Verlaag Berlin Heidelberg New York Tokyo, Chapter 15.2 entitled "Linear Position Control" 1990.
Faller F. Brice
Sircus Brian
U.S. Philips Corporation
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