​Car Headlight Dimming Motor Regulator Lights

Headlamp Actuator car alternator adjustment light stays on. The working and charging voltage of the battery is constant, usually 12v, 24v or 6V. Therefore, when the engine is working, the output voltage of the generator is required to be kept constant to ensure the normal operation of electrical equipment and batteries. Therefore, when using a generator, a voltage stabilizer must be equipped to change the speed of the generator and keep the generator terminal voltage constant.

When the generator of the Auto Headlamp is running, the voltage regulator adjusts the current intensity of the excitation winding to adjust the magnetic field flux after the generator voltage exceeds a certain value, so that the terminal voltage remains at the specified value, and the regulated voltage of the generator is 13.5- 14.5V (or 13.8-14.8 v. There are contact regulators, transistor regulators, and integrated circuit regulators. The electronics also feature current limiting to prevent overheating when the generator charges the battery. large charging current.


In addition, when the output voltage of the engine is low or cannot be output due to other reasons, the battery will generate current on the generator winding (reverse flow phenomenon), resulting in over-discharge of the battery, damage to the battery, and damage to the generator due to excessive current flowing into the generator winding. damage to the generator.

Therefore, the electronic device also needs to have a reverse current cut-off function. This electronic device is called a Leveling Device, a regulator. Automotive regulators are relay-type and electronic-type. The regulator consists of three relays, one of which is responsible for regulating the output voltage of the generator. The magnetic field of the generator is separated from the connection of different circuits through the relay contact, the excitation current of the generator is controlled, and the purpose of stabilizing the output voltage of the generator is achieved. On the one hand, it is responsible for preventing the charging current from being too large. When the charging current is too large, the circuit will cause the voltage stabilizing relay and the current limiting relay to disconnect the excitation circuit of the generator at the same time, so that the generator will stop working. On the other hand, it is responsible for closing the charging circuit when reverse current occurs. , When the reverse current occurs, the electrical action cuts off the charging circuit.