Control device

Details Control device Control device

2005-12-01

2008-12-30

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Positional servo systems

With compensating features

C318S568180, C318S651000, C318S652000

Reexamination Certificate

active

07471056

ABSTRACT:
A control device includes a first switch (400) by which an input signal to a motor speed control loop (910) is selected from a signal of a position control loop (300) and a signal of the speed control loop (200), and a switch controller (500) that controls switching of the first switch (400), so that the first switch (400) can switch between a quadruple loop (a current control loop, the motor speed control loop, the speed control loop (200) and the position control loop (300)) with the speed control loop (200) embedded therein, and a triple loop (the current control loop, the motor speed control loop and the position control loop (300)) without the speed control loop (200), corresponding to a transient state and a steady state.

REFERENCES:
patent: 4742285 (1988-05-01), Sasaki et al.
patent: 5142210 (1992-08-01), Kojima et al.
patent: 0 364 593 (1990-04-01), None
patent: 61170805 (1986-08-01), None
patent: 63101901 (1988-05-01), None
patent: 04260906 (1992-09-01), None
patent: 2004-118635 (2004-04-01), None

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