Controller arrangement with adaptive non-overlapping commutation
US7276867B2 · kind B2 · utility
19Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Mar 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A PWM controller for a direct current brushless motor comprising first and second windings includes a motor drive circuit receiving pulse width modulation control signals to drive the first and the second windings; and a control circuit having inputs coupled to the first and second windings to control a pulse width modulation control circuit such that pulse width modulated control signals are provided to the motor drive circuit only when the voltage across the first and second windings are at a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.