Thyristor that can be switched off when in switch-on state without current flowing through thyristor falling to below value of holding current

摘要

The thyristor (1) has a device (3) for producing an electrical current pulse (I) and injecting it into the thyristor base (15) when the thyristor is in the switched on state. This device contains an optoelectrical transducer (30) for producing the current pulse from an optical radiation pulse. A driver stage (2) is connected between the pulse generating device and a thyristor emitter.