Optical triggering of power thyristors
Abstract
Inexpensive laboratory type light activated thyristors with base layer widths of 200 micrometers and 560 micrometers were used for the investigation of photo current yields, optical trigger levels and their correlation to the du/dt capability. GaAs:Si luminescent diodes and GaAs-GaAlAs-double-hetero-structure-lasers proved to be suitable light sources. In the case of luminescent diodes, glass fiber cables with large aperture are advantageous. The thyristor analysis shows that further optimizations are possible, and with available optical components, the development of optically triggered power thyristors with technically reasonable properties is possible.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1979
- Bibcode:
- 1979STIN...8114238S
- Keywords:
-
- Gallium Arsenide Lasers;
- Gates (Circuits);
- Thyristors;
- Trigger Circuits;
- Glass Fibers;
- Luminescence;
- Electronics and Electrical Engineering