LOAD STATE DETERMINER, LOAD ASSEMBLY, POWER SUPPLY CIRCUIT AND METHOD FOR DETERMINING A LOAD STATE OF AN ELECTRICAL POWER SOURCE

摘要

The invention relates to a load state determiner (100) for determining a load state of an electrical power source (104) having a source impedance, comprising a voltage drop determination circuit (110) which is designed to deliver an electrical parameter (112) based on a detection of an instantaneous current (IL) supplied to a load (106) under load from the power source which describes a voltage drop on a source impedance of the power source. According to the invention, the load state determiner further comprises an evaluation circuit (120) which is designed to receive a load state signal (124), based on the electrical parameter which describes the voltage drop on the source impedance of the power source and an electrical parameter (122) which describes a terminal voltage of the power source, wherein said signal carries information on a current relation between the terminal voltage of the power source and an idle voltage of the power source.