DEVICE AND METHOD FOR TESTING THE STATE OF THE CONNECTION OF A LOAD CONNECTED TO A CONNECTION POINT

摘要

A device and a method test the connection of a load connected to a connection point. The connection point is formed between a first switching element, which is connected between a high supply voltage potential and the connection point, and a second switching element, which is connected between the connection point and a low supply voltage potential. When the two switching elements are switched off, a potential is built up at the connection point by at least one voltage or current source connected to the connection point. A potential analyzing circuit is provided and checks whether the potential lies in a defined potential range. If this is the case, it is concluded that a line between the connection point and the load has been interrupted.