Patent ID: 6265921
Filing Date: 2001-07-24
Classification: H03K

Abstract:
An electric circuit configuration for shaping the slew rate of a pulsed output voltage occurring at an output terminal and for detecting a short circuit at the output terminal, comprising:a switchover control circuit having a first switching state for controlling the slew rate of the output voltage as a function of a voltage curve occurring on an internal electric apparatus, and a second switching state for feedback-controlling the output voltage slew rate as a function of the output voltage, and a third switching state that is a substantially dead state;a detector circuit configured to provide a detection signal when the output voltage differs by at least a predetermined value from the output voltage level occurring before edge onset of the output voltage; anda timer circuit for switching the switchover control circuit from the first to the second switching state a predetermined length of time after edge onset of the output voltage when the detection signal is present at this time, and from the first to the third switching state when the detection signal is not present at this time.