Protective device for control of clocked electromagnetic consumer such as motor has freewheel device consisting of transistor , reverse battery protection having further transistor and freewheel

摘要

A protective device for the control of a clocked electromagnetic consumer (5) has a freewheel device and a reverse battery protection. The electromagnetic consumer is separated or connected with an energy supply (6) by a transistor (1) that is a component of a control. The freewheel device consists of a transistor (2), the reverse battery protection has a further transistor (3) and the freewheel transistor is wired in series with the reverse battery protection transistor. The freewheel transistor is a MOSFET. The reverse battery protection transistor is a MOSFET. The freewheel transistor and the reverse battery protection transistor are MOSFETs.