Holding circuit for static convertor valves
US4024454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1976 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Jan 26, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/1255
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a static convertor which comprises at least one rectifier bridge with valves or rectifiers arranged in commutating groups and a control pulse emitter connected to the valves by individual control circuits, in order to ensure that during operation one valve in each group always receives an ignition signal, a holding circuit is provided for each valve and its control circuit and a signal output for indicating valve ignition. The holding circuit is connected on its input side to the signal outputs for the valves in the proper commutating group in such a way that the holding circuit is switched on by the signal outputs of its own valves and switched off by the signals from the signal outputs of the other valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.