Control device for servocontrolling an object to a given position
US5455495A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1993 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Nov 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/291
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control device for servocontrolling an object to a given position includes a motor, a coder connected to the motor, and a rig connected to the coder and the motor, the rig including (a) a counter and a subtractor which generate a position discrepancy signal on the basis of an output of the coder and an external set-point signal input to the subcontractor; (b) circuit paths each having a sampling device which receives the position discrepancy signal and samples this signal at a distinct frequency, each circuit path performing a different degree of differentiation; (c) a summing unit for receiving and summing outputs of each of the circuit paths; and (d) an amplifier for receiving an output of the summing unit and outputting a control signal which controls the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.