a third diode having a characteristic comparable with the characteristic of the first diode, and disposed in series between the first power supply and {HEAD ~ the first device} having {TAIL ~ a direction} from the first power supply towards the first device as a forward direction, and 
having
a third diode having a characteristic comparable with the characteristic of the first diode , and disposed in series between the first power supply and { HEAD ~ the first device } having { TAIL ~ a direction } from the first power supply towards the first device as a forward direction , and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH