Actual speed value converter for the speed control in a motor drive system
US4571529A · kind A · utility
1Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1983 |
| Grant date | Feb 18, 1986 |
| Priority date | — |
| Expiry date | Nov 21, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/922
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An actual speed value converter for a motor comprises a tachometer having a part rotating with the speed to be measured, e.g., a capacitive or inductive rotor, or an optical actuator disk, the tachometer determining the frequency of a frequency generator. The frequency generator is part of an action path for preparing the actual speed value, the action path comprising a frequency generator and a downstream-connected frequency discriminator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.