Daylight lamp constant current driving method and driving circuit thereof

Abstract

The invention discloses a daylight lamp constant current driving method which comprises the following steps: 1) setting an alternating current input end for inputting an alternating current drive power, thus alternating current is accessed; 2) setting a direct current output end for outputting a direct current drive power, thus driving of a daylight lamp is realized; and 3) setting a constant current drive control circuit for converting the accessed alternating current drive power into the direct current drive power and outputting a constant current and voltage to realize the action of the constant current driving daylight lamp, wherein one end of the constant current drive control circuit is connected with the alternating current input end, and the other end of the constant current drive control circuit is connected with the direct current output end. The invention also discloses a driving circuit for implementing the daylight lamp constant current driving method; the method provided by the invention not only can improve the utilization efficiency of electric energy, but also can ensure stability of current voltage of the drive power; and the production cost is low, and the safety performance is high; the driving circuit provided by the invention has the advantages of reasonable layout, small volume, high conversion efficiency and obvious stability of current voltage output and energy conservation effect.

Description

technical field [0001] The invention belongs to the field of drive circuits, and in particular relates to a fluorescent lamp constant current drive method and a drive circuit thereof. Background technique [0002] LED lamp is a new type of solid light source with energy saving, environmental protection, small size and long life. In recent years, it has been continuously promoted and applied to the field of daily lighting. Because LED lights have the advantages of low power consumption, low temperature, no harmful metals such as mercury and lead, and long working life, it is an inevitable trend to use LED lights as lighting sources in the future. . [0003] Due to the working characteristics of the LED itself, it is determined that it cannot use the same driving power as ordinary incandescent lamps. Some existing LED lamp groups are limited by the unstable current and voltage of the driving power, resulting in the lifespan and luminous efficiency of LED lamps. It is very id...

AI Technical Summary

Problems solved by technology

[0003] Due to the working characteristics of the LED itself, it is determined that it cannot use the same driving power as ordinary incandescent lamps. Some existing LED lamp groups are limited by the unstable current and voltage of the driving power, resulting in the lifespan and luminous efficiency of LED lamps. It is very ideal; at the same time, based on the layout of traditional components, the circuit is relatively complex, the volume is too large, the cost is high, and it is susceptible to electromagnetic interference, so that the output power changes, the work is unstable, it is easy to generate heat, and radiation produces a lot of loss. Low efficiency, the overall energy-saving effect is not very obvious

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