Method and apparatus for an electromagnetic joystick lock with flux canceling driver circuit
US5953196A · kind A · utility
17Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Jul 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2003/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The locking force of an electromagnetic joystick lock with flux having a flux canceling driver circuit is controlled in order to maintain the control lever of a joystick in a desired position. In one embodiment, the locking force may be in either an activated or deactivated state, and one of a forward or reverse current is applied to the coils of the lock in response to the state, in order to eliminate the residual magnetism when the locking force is deactivated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.