Method and apparatus for controlling position and velocity of a piezoelectric device
US6285115A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for controlling position and velocity of a piezoelectric device. The control system includes a position control circuit that is operable to receive a control signal corresponding to a desired position of the piezoelectric device, and to compare the control signal to an estimated position of the piezoelectric device. The position control circuit generates a position error control signal that is adapted to drive the piezoelectric device to the desired position. The control system may further include a velocity control circuit that is operable to receive the position error control signal and generate a control signal that is adapted to drive the piezoelectric device to the desired position and at the desired velocity according to a predetermined velocity profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.