On-vehicle power source

PURPOSE: To set an appropriate voltage value by assigning a first generator to a first battery and a second generator to a second battery. CONSTITUTION: Two power sources 10, 11 are connected in series to each other, and the negative terminal of the battery 10 and the positive terminal of the the battery 11 are connected to each other. The positive terminal of the battery 10 is connected to a voltage terminal 12, and the negative terminal of the battery 10 or the positive terminal of the battery 11 is connected to a voltage tap 13 or an earth, and the negative terminal of the battery 11 is connected to a voltage tap 14. Between the terminal 12 and the earth, a first generator 15, a first motor 17, a first lamp 19, a load 21 and a DC voltage converter 22 are inserted and connected. Also, between the voltage terminal 14 and the earth, a second generator 16 and a second motor 18 are inserted and connected. Therefore, three different voltages can be obtained from voltage taps 12, 13, 14. COPYRIGHT: (C)1989,JPO