Firing apparatus for a plurality of electric valves
US3944815A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1974 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Nov 29, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a firing device for a number of electric valves, particularly thyristors. Each thyristor control path is associated with a firing circuit with a detector for electromagnetic radiation responsive to a transmitter which is controlled by a firing control signal and is equipped with a radiating device which energizes the individual detectors. The detectors are arranged close together in a plane perpendicular to the radiation direction of the radiator. In order to obtain latitude in the arrangement of the detectors, the radiator is designed so that it furnishes a parallel-ray bundle of radiation and the detectors are spatially arranged relative to each other, such that they are exposed to the parallel ray bundle without mutual shadowing upon projection in the direction of the radiation on a projection plane which is perpendicular to the radiation direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.