Ferroresonant transformer systems and methods with selectable input and output voltages for use in uninterruptible power supplies
US10381867B1 · kind B1 · utility
1Cited by
233References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2016 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Oct 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/067
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ferroresonant transformer system has a core, a shunt, first and second input windings, an inverter winding, a tank winding, a resonant capacitor, an output capacitor, and a plurality of switches. The tank winding defines a plurality of switch tap locations and at least two output tap locations. The resonant capacitor is connected across at least a portion of the tank winding. Each switch is operatively connectable between one of the switch tap locations and the resonant capacitor. Each output terminal is operatively connected to one of the at least two output tap locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.