Closed loop positioner for a stepping motor driven by a buffered translator
US4254370A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1978 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Jul 31, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42318
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Disclosed is an apparatus and method for controlling the position of a stepping motor which is driven by a buffered translator. Commands calling for either forward or reverse motor steps are sent to the buffered translator, and the motor subsequently executes these commands. In order to determine if the motor executes all of the commands sent to the buffered translator, a signal representing the position the motor would assume if all of the commands were executed is compared to a signal representing the actual position of the motor. If they do not correspond, additional command pulses are caused to be generated to the buffered translator until the desired motor position is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.