Digital actuator controller using low-pass filter
US5377096A · kind A · utility
15Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1992 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Dec 16, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41144
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The digital actuator controller of the present invention reduces the effect of aliasing peculiar to the digital control by inserting a low-pass filter (LPF), which was considered inadequate in the past, between a digital-to-analog converter and a power amplifier to thereby reduce the gain in the high frequency region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.