Motor driving circuit
US4494056A · kind A · utility
7Cited by
7References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 30, 1983 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Mar 30, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor driving circuit in which the opposite ends of the motor driving coils of a video tape recorder (VTR) capstan motor are shorted by a group of switching elements when a control input voltage generated from a rotation detection/oscillator is in a predetermined range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.