Treiber-Schutzschaltung.

摘要

A reverse battery and loss of positive supply voltage detector circuit includes a power field effect transistor (14) for switching a stored inductive energy to the ground supply voltage terminal (3) if there is a disruption in the power supply. A detector circuit (4-8, 11-13) senses a reversal of the supply voltage connections as would happen if the battery were connected backwards and enables the power field effect transistor (14) for discharging a negative voltage that may have developed across an inductive load (17). The detector circuit (4-8, 11-13) further senses a loss of the positive supply voltage (1) and enables the power field effect transistor (14) for discharging a negative voltage that may have developed across an inductive load (17) due to the disruption of applied power.