1. Charging Introduction
car battery does not have long-term ability to supply the electrical system, it is necessary to continue charging. Effect of a charging system has two: one is to charge the battery; the second is when the engine is operating, to provide power to the electrical components. It is now widely used AC charging system. Since the car need direct current, the alternating current generated by the generator must be rectified before being output (converted to DC).
When starting the engine each time the full current required by the battery supply starting system and the ignition system. As the engine speed increases, the charging system voltage exceeds the battery voltage may be generated, this time, the generator can charge the battery. If the increase in demand for electricity, the generator output voltage is lower than the battery voltage, the battery and the generator together with it to the electrical power system.
The charging system consists of a battery and a generator. The battery must have enough energy to run the starter and other electrical systems. A generator during engine operation, when the battery is necessary to increase the output current to the battery charging. Dashboard with the charge warning lamp, which is lit at no output power is too low or the power output of the generator.