Motor drive circuit
US9722530B2 · kind B2 · utility
0Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/112
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive circuit for an electric motor, has a driving source unit, configured to generate a driving source signal and a driving unit, connected to the motor and configured to drive the motor according to the driving source signal. A sensing unit senses the actual speed of the motor. A control unit stops operation of the motor when the actual speed of the motor falls below a predetermined level. A timing unit counts a predetermined time period from the time the motor stops operation. The motor resumes operation at the end of the predetermined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.