Motor apparatus for a switch drive of an electrical switch, and method for operation thereof
US11521805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Nov 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H11/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor apparatus for a switch drive of an electric switch has an electric motor and a controller for controlling the electric motor. The controller has: a rectifier unit for rectifying a supply voltage of the motor apparatus, if the supply voltage is an alternating voltage, and for reverse polarity protection if the supply voltage is a direct voltage, a voltage measurement unit for detecting the supply voltage or a rectifier output voltage of the rectifier unit, a switch unit for generating a drive voltage for the electric motor from the supply voltage or from the rectifier output voltage and a control unit for controlling the switch unit as a function of the supply or rectifier output voltage detected. The electric motor is operable by direct current and the switch unit generates a drive direct voltage for the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.