Dual electronic switching device with reduced external terminals

摘要

Electronic switching device comprising external terminal means for connecting the switching device with an external power source and with a load, detection circuit means for developing a detection signal, exclusive-or circuit means including a first input terminal connected to the detection circuit means for receiving the developed detection signal and a second input terminal connected to the external terminal means for receiving a low or high input signal therefrom, and output circuit means connected to the exclusive-or circuit means for receiving an output signal generated from the same and for switching the load which is connected to the external terminal means.