Positive feedback position servo

Details Positive feedback position servo Positive feedback position servo

1987-02-04

1988-05-31

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318646, 318648, 318628, 360 78, G05B 106

Patent

active

047483938

ABSTRACT:
A position servo system is described for positioning a member mounted on a spring. The spring provides a force opposing the motion of the member from an initial position. A position actuator, for example a motor, applies a force in response to a position request signal for moving the member to a desired position. A portion of the position feedback signal is applied from a position sensor to the motor as a positive feedback signal to compensate for the force of the spring. A steady state position error of the servo system is thereby substantially reduced to zero. A circuit and method for calibrating the positive feedback signal are also described.

REFERENCES:
patent: 3967178 (1976-06-01), Morris
patent: 4566046 (1986-01-01), Fujiki et al.

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