Circuit arrangement for braking a moving mass by switching off an electromechanical switching device with an inductive load

摘要

The arrangement has a free-wheeling circuit comprising a free-wheeling diode (5) and a limiting element (7) e.g. breakdown diode, that is connected parallel to a switching element (6) e.g. MOSFET. Another switching element (9) is connected in series with the circuit. A controller has an evaluation and controlling unit (10) for synchronous controlling of the elements. The controlling unit is connected with a galvanically separated controller (8) and a control input, where the controlling of the elements is carried out based on determined control supply voltage. An independent claim is also included for a method for operating a circuit arrangement.