Electric actuator return-to-normal using capacitor energy storage with regulated output
US5852333A · kind A · utility
11Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Jul 24, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric actuator return-to-normal failsafe system that utilizes a bank of storage capacitors to store electrical energy for returning an electrical actuator to a safe position in the event of a power failure. The failsafe system includes a regulator circuit that regulates the output of the storage capacitor such that a constant power output is applied to the electric actuator. The constant power output from the regulator circuit is also available to provide directional control of the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.