PWM actuator control with pulse regulation
US10075121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jun 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0833
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driver circuit for generating a sequence of pulses of a drive voltage from a supply voltage is described. The drive voltage is used for operating an electrical actuator, such as an electrical engine or machine. The driver circuit comprises means for providing an amplitude indication of an amplitude of the supply voltage, which is used for generating a first pulse of the sequence of pulses. Furthermore, the driver circuit comprises an integration unit configured to integrate the amplitude indication for a duration of the first pulse, thereby generating an integrated voltage. In addition, the driver circuit comprises a comparator configured to compare the integrated voltage with a reference voltage, thereby generating a comparator signal. Furthermore, the driver circuit comprises a control unit configured to terminate the first pulse in dependence of the comparator signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.