Fast Turn-on Asymmetric Thyristor
发布时间：2018-08-10
Dynex Pulse Power Thyristors
Dynex’s Pulse Power Thyristors may be used to connect a source of stored energy, such as a capacitor, to a load, or to bypass and protect the load in the case of a crowbar circuit. In these pulsed power applications where the rate of rise of current is very fast, the pulsed power switch is acting as a closing switch and ordinary phase control thyristors (SCRs) are likely to fail due to the high di/dt experienced.
Examples of applications would be the connection of energy storage systems to low inductance loads, crowbars for bypassing/protecting a load and general thyratron and ignitron replacement.
The PT family of Pulse Power Thyristors (PPTs) is based on Dynex’s GTO technology and is designed for long-term stability under DC voltages. The structures are resistant to cosmic ray induced failures at normal working voltages.
Applications
Pulse Power Thyristors are components that have been designed for very high di/dt switching and fast turn-on in combination with a very high current capability and high voltages and they can also include special driver units.Dynex’s Pulse Power Thyristors may be used to connect a source of stored energy, such as a capacitor, to a load, or to bypass and protect the load in the case of a crowbar circuit. In these pulsed power applications where the rate of rise of current is very fast, the pulsed power switch is acting as a closing switch and ordinary phase control thyristors (SCRs) are likely to fail due to the high di/dt experienced.
Examples of applications would be the connection of energy storage systems to low inductance loads, crowbars for bypassing/protecting a load and general thyratron and ignitron replacement.
Features
- Asymmetric design
- Single or repetitive pulse applications
- Very highly interdigitated gate structure
- Very high di/dt capability
- Fully floating silicon technology
- High “shot life”
- High reliability / life compares to vacuum tubes
- Designed as a closing switch
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