Electric power devices with automatically established input voltage connection configuration
US9893644B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2016 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Nov 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electric power devices and control methods are provided which automatically select a line voltage or phase voltage of an AC voltage supply. The electric power device includes a switchable circuit, a sensor and a switch control. The switchable circuit connects to the AC voltage supply, and includes multiple switchable elements. The sensor ascertains a voltage level of the AC voltage supply, and the switch control automatically establishes a configuration of the switchable circuit through control of the multiple switchable elements. The switch control couples the electric power device in a line-line (delta) configuration to the AC voltage supply when the voltage level is in a first voltage range, and a line-neutral (wye) configuration when the voltage level is in a second voltage range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.