Schaltungsanordnung zur Energieversorgung von elektrischen Auslöseeinrichtungen

摘要

One problem concerning the supply of electricity to electronic triggering devices for power circuits relates to controlling series mounted switching transistors, when said transistors are controlled using a voltage derived from a monitored network. In the inventive circuit, the rectified output voltage of the current converter (SW) is guided via a diode (D2) to a charge capacitor (C2). The voltage thereof forms an input voltage pertaining to a first compensator. When the violtage of the charge capacitor (C2) is sufficient for full control of the switching transistor (V1), said voltage is released by the comprator in order to control the switching transistor (V1).