Circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor
US3987314A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Nov 29, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor, the control path of which is connected to a d-c voltage source by way of the collector-emitter path of a transistor. In order to obtain a control electrode current at the semiconductor valve, which is independent of the d-c voltage of the d-c voltage source and the control electrode characteristic of the semiconductor valve, provision is made, according to the invention, that a resistor is arranged in series with the collector-emitter path of the transistor, and that a Zener diode is connected between the base of the transistor and that terminal of the resistor which is facing away from the transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.