Re1.8 Series and parallel connections of power semiconductor devices object 9 To increase the capability to deal with voltage or current Issues and solutions 4 Series connection Issue: even voltage sharing Solutions: Selection of devices that are closer to each other in the characteristics Voltage sharing circuit s* Parallel connection Issue: even current sharing Solutions Selection of devices that are closer to each other in the characteristics Current sharing circuit and symmetrical circuit layout 16Power Electron cs i 16 1.8 Series and parallel connections of Series and parallel connections of power semiconductor devices power semiconductor devices Object To increase the capability to deal with voltage or current To increase the capability to deal with voltage or current Issues and solutions Issues and solutions Series connection connection – Issue: even voltage sharing Issue: even voltage sharing – Solutions: Solutions: • Selection of devices that are clos Selection of devices that are closer to each other to each other in the charac in the characteristics teristics • Voltage sharing circuit Voltage sharing circuit Parallel connection Parallel connection – Issue: even current sharing Issue: even current sharing – Solutions: Solutions: • Selection of devices that are clos Selection of devices that are closer to each other to each other in the charac in the characteristics teristics • Current sharing circuit and Current sharing circuit and symmetrical circuit layout symmetrical circuit layout