PERFECCIONAMIENTOS EN ELEMENTOS DE CONEXION ELECTRICOS BI- POLARES CON VALORES CARACTERISTICOS DEPENDIENTES DE UN CIR- CUITO DE CONEXION EXTERIOR.

摘要

A protective arrangement in which a bipolar circuit device is connected across the terminals of a voltage source with voltage monitored through a voltage regulator connected to the source. The bipolar device contains two transistors of opposite conductivity type interconnected so as to exhibit low internal resistance when the output voltage from the source lies within predetermined operating limits. When the output voltage from the source exceeds a predetermined limit, due to failure of the voltage regulator, for example, the internal resistance of the bipolar device drops sharply and substantially short-circuits the terminals of the generator. The change in resistance is made permanent through destruction of the transistors as a result of heat dissipation.