Motor driver
US6157153A · kind A · utility
6Cited by
7References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/24
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motor driver has a braking control circuit. The braking control circuit shuts off the supply of an electric current to the coils included in the motor when a motor control signal shifts to a predetermined level and, after a predetermined length of time secured in accordance with an index signal, starts application of braking to the rotation of the motor by the use of a braking circuit. The index signal is obtained from the signal that indicates the rotational position of the motor. The motor control signal is fed from a control signal generating circuit to the braking control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.