The car charging system consists of a battery, generator, regulator, and charging status indicator device. As the main power source in the operation of automobiles, the generator is responsible for supplying power to all electrical equipment outside the starting system and charging batteries. Due to the fact that the generator is driven and rotated by the engine through a transmission belt, the output voltage of the generator changes when the engine speed changes. To meet the requirements of electricity consumption for automotive electrical equipment and charging batteries, the charging system is equipped with a voltage regulator. The voltage regulator adjusts the excitation current of the generator to maintain stable output voltage during changes in speed and load. The charging status indicator device is used to indicate the working status of the charging system, indicating whether the battery is in a charging or discharging state. The battery on a car does not have the ability to provide long-term power to the electrical system, so it needs to be continuously charged. The charging system has two functions: one is to charge the battery; The second is to provide electricity to electrical components during engine operation. The commonly used system now is the AC charging system. As cars require direct current, the alternating current generated by the generator must be rectified (converted into direct current) before being output. Every time the engine is started, the battery supplies all the current required for the starting system and ignition system. As the engine speed increases, the voltage generated by the charging system can exceed the battery voltage, at which point the generator can charge the battery. If the demand for electricity increases and the output voltage of the generator is lower than the battery voltage, the battery and generator will supply power to the electrical system together. The charging system consists of a battery and a generator. The battery must have sufficient energy to operate the starter and other power systems. The generator operates while the engine is running and charges the battery when it needs to increase its output current. The dashboard is equipped with a charging warning light, which is illuminated when the generator does not output electricity or the electricity output is too low
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