Method and motor driving circuit for adjusting rotational speed of motor
US8581534B2 · kind B2 · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Feb 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/29
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for adjusting rotational speed of a motor is also disclosed. The method includes determining whether an input voltage of the motor enters into a predetermined voltage range; generating a pulse width modulation signal when the input voltage of the motor enters into the predetermined voltage range; and driving the motor to rotate according to the pulse width modulation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.