| 摘要 |
In a battery charging system for a road vehicle, an alternator with a field winding charges a battery connected between first and second supply lines, and also provides power to a third supply line. The voltage regulator of the system is connected between the third and second supply lines, and there is a high impedance series circuit connected between the first and second supply lines, including the vehicle ignition switch and an amplifying device which operates a warning device. Means is provided connecting the third line to the series circuit so that the warning device is rendered inoperative when the third and first supply lines are at substantially the same potential. |
