Abstract: A method for triggering an electromagnetic consumer with low coil resistance (solenoid for a Diesel injection pump) having a free-running circuit that can be switched over, and an apparatus for performing the method, regulate a voltage at an end stage to a predetermined value. This is accomplished by controlling the control voltage of the end stage during a turn-on phase until a turn-on peak current is reached and then regulating the holding current by repeatedly lowering the current through the end stage and keeping it constant to a predetermined value during a predetermined time period and then raising it again to a maximum value of the holding current until the consumer is turned off.

Abstract: An assembly has a control component with outputs, and a data transmission bus with leads. An interface circuit or an integrated driver component for connecting the control component to the data transmission bus includes two drivers each having an input and an output. The outputs of the drivers are each connected to a respective one of the leads of the bus. Each of two series resistors is connected between a respective one of the outputs of the control component and the input of a respective one of the drivers for controlling the drivers with the control component. Each of two capacitors is connected between ground and a respective one of the outputs of the drivers connected to the leads of the bus.