Patent ID: 9595913
Date: 2017-03-14
CPC Classifications: H01L,H02S,Y02E

Claim:
1. A solar cell apparatus comprising: a substrate; a first cell group comprising a plurality of first cells connected in series to each other on the substrate; a second cell group comprising a plurality of second cells connected in series to each other on the substrate; a first bus bar connected to the first cell group; a second bus bar connected to the second cell group; a first connection electrode connecting the first cell group and the second cell group; a first diode connected to the first bus bar and the first connection electrode; a second diode connected to the first connection electrode and a second connection electrode; an error detection unit connected to first and second ends of each of the diodes, the error detection unit including a comparator for comparing a reference voltage with an input voltage and outputting an output voltage, wherein the input voltage is a signal of the first and second ends of each of the diodes, wherein the comparator outputs the output voltage when the input voltage is lower than the reference voltage; and a signal output unit connected to the error detection unit that receives a signal including the output voltage generated from the error detection unit and transmits it externally.