Large-power low-loss adjustable constant current power supply control module

Abstract

The invention discloses a large-power low-loss adjustable constant current power supply control module. The module comprises a power supply interface, an LDO, a current stabilizer and a current adjusting module; the power supply interface is connected with the LDO, and the LDO adjusts the voltage of a vehicle-mounted power supply; the LDO is connected with the current stabilizer, the current stabilizer receives a stable voltage value from the LDO and outputs the constant current; the current stabilizer is connected with the current adjusting module, and the current adjusting module adjusts theconstant current from the current stabilizer in the 1-4A range according to a signal fed back by a single chip microcomputer, and outputs the required stable current value to halogen headlamps. The adjustable constant current power supply control module is imported for the halogen headlamps, the stable current output by the current stabilizer is controlled through the signal fed back by the single chip microcomputer, the required stable current is provided for the halogen headlamps, thereby achieving the stable lighting effects with different light intensities, improving the use efficiency ofthe electric energy and avoiding the energy waste lost.

Description

technical field [0001] The invention relates to a control module for a power supply of a halogen car lamp, in particular to a control module for a high-power low-loss adjustable constant-current power supply. Background technique [0002] With the rapid development of the car light industry, there are more and more types of car lights. As the most widely used car headlights, halogen lamps are far inferior to xenon headlights, LED headlights and laser lamps in terms of illumination intensity, energy saving and service life. Headlights and other advanced lights. However, due to its low cost and high economy, it is still favored by many consumers. [0003] The power of halogen car lights is about 55W, which consumes a lot of energy. For dark country roads, the power of 55W is just enough to meet the demand, but for some well-lit roads in some cities, the full-power light mode leads to waste of electric energy, and it is easy to cause glare and other problems to the opposite d...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the power of the halogen car lamp cannot be adjusted, the present invention provides a high-power, low-loss adjustable constant current power supply control module, which can increase or decrease the power of the car lamp in real time by adjusting the internal current of the halogen car lamp, thereby playing a role The role of energy saving

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