Patent ID: 9310445
Filing Date: 2016-04-12
CPC Classification: G01R,H02S,Y02E

Claim Text:
1. A circuit arrangement comprising: a power source arrangement comprising output terminals and a plurality of n power sources connected in series between the output terminals, wherein n≧2; and a diagnostic circuit coupled to the power source arrangement, the diagnostic circuit configured to select at least two different groups of power sources from the power source arrangement, the diagnostic circuit configured to measure a voltage of each of the at least two different groups between the output terminals, wherein during the measurement of the voltage of one group of the power sources of the power source arrangement that do not belong to the one group are bypassed, and the diagnostic circuit configured to compare the at least two measured voltages obtained through measuring the voltage of each of the at least two groups or to compare at least two voltages dependent on these at least two measured voltages, wherein, when a difference between two of the measured voltages or between two of the voltages dependent on the measured voltages is higher than a threshold value, the diagnostic circuit is