Schutzschaltung für eine Reihenschaltung aus Leistungshalbleiter-Schalter und einem induktiven Verbraucher

摘要

The invention relates to a protection circuit for a series connection consisting of low-side switches and an inductive user. A power field-effect transistor representing a low-side switch can be controlled by a control circuit according to a desired value that can be predetermined. The invention also relates to a protection circuit for a series connection consisting of a high-side switch and an inductive user. A power field-effect transistor representing a high-side switch can be controlled by a control circuit according to a desired value that can be predetermined. A polarity reversal protection for all components of the series connection is obtained by including a power double Schottky diode with a mutual cathode or anode into the series connection.