Brake control circuit for an electromagnetically actuated brake and drive module

摘要

The circuit (4) has an electronic valve (11) arranged in an actuating current path (8). An armature inductor (7) is connected between an energization condition and a non- energization condition, where energy stored in the armature inductor is reduced during opening of an electronic valve (11). A diode (13) is arranged in a free running path (12) in a reverse direction in reference to aligned voltage provided by a rectifier bridge (9). An electronic switch (14) is arranged in the free running path. A diagnosis unit (34) is assigned to the electronic switch. The electronic valve is designed as a MOSFET or IGBT. An independent claim is also included for a drive module for a rope lift.