Electronic emergency-stop braking circuit for robotic arms
US9114536B2 · kind B2 · utility
9Cited by
13References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | May 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P3/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Representative embodiments of a system for braking a cyclically rotating motor upon a power failure include (i) charge-storage circuitry for storing charge and converting the stored charge to an output voltage upon power failure; (ii) one or more passive electrical elements for conducting current induced by motor rotations; and (iii) voltage-actuated circuitry connected to the passive electrical element and the charge-storage circuitry for braking the motor during each half-cycle of motor rotation. The circuitry is inactive until actuated by the charge-storage circuitry upon power failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.