HIGH CURRENT END POWER STAGE

摘要

#CMT# #/CMT# The output (PA) has four power transistors (T) each comprising a diode (D) that is blocked during normal operation of the respective transistor. A set of electrical supply lines couples the transistors with supply and reference potentials. A safety fuse (S) is triggered by a current that flows through the diode, where the diode is arranged in a direction of conduction when the supply and reference potentials are interchanged. #CMT#USE : #/CMT# Used in a controller of a motor vehicle for controlling an electric motor, servo steering device, or an electric brake booster device. #CMT#ADVANTAGE : #/CMT# The safety fuse is triggered by the current that flows through the diode, where the diode is arranged in the direction of conduction when the supply and reference potentials are interchanged, thus providing a simple and economic power output, and enabling the power output to be protected against reverse polarity. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a circuit arrangement with a high current power output. D : Diode M : Electric motor PA : High current power output S : Safety fuse T : Power transistors.