The generator used in the car has a DC generator, alternator what is the difference between these two?

For a long time, the 2113 used in cars are DC generators, by 5261 on the rectifier commutation of direct 4102 current generators can not adapt to the requirements of modern automobile 1653, and gradually replaced by alternators. The use of alternators is a major breakthrough in automotive electrics. It began to be used in the 1950s, today's developed countries around the world have been commonly used in automobiles with silicon rectifier alternator, our country also began to use from the 1970s, and has been rapidly popularized.

Car silicon rectifier alternator and DC generator compared to the structure of the fundamental difference is the use of silicon diode rectifier components, replacing the mechanical rectifier. This is the main reason why automotive silicon rectifier alternators are superior to DC generators. Therefore, modern automobiles use silicon rectifier alternators. So it is said that the electricity from the modern automobile generator is alternating current, which is rectified and turned into direct current to supply the automobile circuits.

Automobiles are equipped with batteries, but the amount of power they can store is very limited. For example, when starting the engine, the starter motor to consume a lot of battery power, if not in a timely manner to replenish its electrical energy, can not meet the needs of the increasing number of modern automobile power equipment, it is also difficult to ensure that the car's frequent starts and normal operation. So the generator is the main power source of the automobile electrical system. The role of the generator is to convert part of the mechanical energy of the engine into electrical energy, to all electrical equipment other than the starter motor power supply, and timely supplemental charging of the battery.