"Drive-interface for a static electronic switch with controlled ""off"""
US4727272A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Jan 16, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/136
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention concerns a drive interface (1) for an electronic static switch (3) such as a blocking thyristor or a transistorized blocking switch; this interface is inserted between said static switch and a control stage (2) designed to generate a logic control signal. Said interface comprises a circuit (5) for detecting the voltage across the two power electrodes of the static switch (3) and a drive circuit (6) receiving the signal emitted from the circuit (5) and the control signal; this drive circuit is designed to assure a polarity on the control electrode (3c) of the static switch such that: PA1 said polarity corresponds to blocking the switch when the control signal carries an OFF command, and/or the voltage across the power electrodes is different from 0, PA1 said polarity corresponds to the conduction state of the switch when the control signal corresponds to permission to conduct an the voltage across the power electrodes is near 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.