Double constant-current driven module with big power of LED miner's light

Abstract

A double constant flow driving module for high-power LED miner's lamp, the supply power is lithium battery, use the high-power super-light LED as the main lamp-house, the low-power super-light LED as the vice lamp-house, the characters are: the normal voltage circuit (-) connect with the in-phase input end of the calculating magnifier (-), the calculating magnifier (-) and the calculating magnifier (-) in-phase respectively; the current sampling unit (-) connect with the off-phase input end of the calculating magnifier (-); the output end of the calculating magnifier (-) connect with the current adjust unit, he output end of the calculating magnifier (-) connect with the current adjust unit, the over-current protecting circuit parallel connect with the current adjust unit, by the whole circuit supply power to the main lamp-house (-) and the vice lamp-house (-).

Description

technical field [0001] The invention relates to a dual constant current drive module of a high-power LED miner's lamp. The lithium battery is used as the power supply, and the dual-channel constant current output supplies constant current power to the main light source and auxiliary light source of the miner's lamp respectively. Background technique [0002] In order to reduce the size and weight of mining cap lamps, improve safety and save energy, lithium-ion batteries have been used to power them in recent years, and LEDs have been used as light sources. At present, most of the LED miner's lamps on the market are connected in parallel with multiple LEDs. The disadvantages of this implementation method are: [0003] In order to ensure that the illuminance of the miner's lamp is greater than 10001x, the luminous flux should not be lower than 251m; when multiple LEDs are connected in parallel, due to the decrease in luminous efficiency and utilization rate, the total luminou...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure that the illuminance of the miner's lamp is greater than 10001x, the luminous flux should not be lower than 251m; when multiple LEDs are connected in parallel, due to the decrease in luminous efficiency and utilization rate, the total luminous flux must always consider a margin of about 20%, which is a waste of energy

[0004] The working voltage of LEDs with different luminescent materials is also different, and the difference in total working voltage is obvious. Once the LED is damaged, it is difficult to choose a suitable LED, which is not conducive to maintenance

[0005] When multiple LEDs are connected in parallel, the light emission angle of the LEDs needs to be designed with a complex optical structure, which reduces the lighting effect of the miner's lamp

Although the production cost is low by using multiple LEDs in parallel, it is suitable for large-area lighting or as an auxiliary light source for miner's lamps, but the actual lighting effect of the current product is not ideal, and the safety is poor when the light source power is insufficient or damaged

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