Method of driving DC motor and related circuit for avoiding reverse current
US8183807B2 · kind B2 · utility
979Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Nov 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor driving method for driving a direct-current (DC) motor, designed for avoiding a reverse current induced by the Back Electromotive Force (BEMF), includes providing a driver circuit for driving the DC motor; comparing a signal level of a terminal of the DC motor and a predetermined voltage value to produce a comparing result; and controlling a specific lower gate switch to avoid the occurrence of a reverse current of the DC motor according to the comparing result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.