Device for protecting electronic circuits against supply battery disconnection (load dump) and/or overvoltages in the electrical supply circuit of motor vehicles

摘要

A device is described for protecting against supply battery disconnection (load dump) and/or transients present in the electrical supply circuit of motor vehicles downstream of the alternator and battery; the main characteristic of the described device is that the device comprises a series thermistor (PTC) and a parallel varistor (VDR). <IMAGE>