Control device for an actuator
US7944672B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2010 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Feb 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control device applicable to an actuator and including a voltage detection unit and a limit switch control unit. The control device is inbuilt inside the actuator without any additional control circuit for the control of the limit switches and the detection of the input voltage range. The limit switches are used to limit the travel of an actuating member of the actuator so as to avoid collision of the mechanism. The voltage detection unit serves to detect the input voltage range to control the operation of the actuator. Accordingly, the mechanism or the motor is protected from damage due to excessively low or high input voltage. The limit switches are freely adjustable in position and protected from high current. Therefore, the contacts of the limit switches are not liable to damage and the lifetime of the limit switches is prolonged. The control device further has electronic brake effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.