Multifunctional LED table lamp

Abstract

The invention discloses a multifunctional LED table lamp comprising a base. A support rod is arranged on the upper side of the base. A lampshade is arranged at the upper end of the support rod. A lampholder is fixed in the lampshade. An LED bulb is installed on the lampholder. A photocatalysis coating layer is arranged on the inner side of the lampshade. The multifunctional LED table lamp further comprises a drive. A drive circuit comprises a fuse FU, a capacitor C1, a resistor R1, a transformer T1, a rectifier bridge Q1, a chip U1 and an MOS pipe VT1. One end of the fuse FU is connected with 220-V alternating current, and the other end of the fuse FU is connected with a capacitor C3 and an inductor L9. An active damping circuit and a linear frequency control circuit in a circuit of the multifunctional LED table lamp effectively restrain peak voltage, the problems such as blinking are solved, through the primary side control design, the LED drive circuit is simple in structure, the compatibility with an existing illuminating system is good, efficiency is high, cost is low, and the practical application requirement of the indoor LED drive is met very well.

Description

technical field [0001] The invention relates to a lamp manufacturing collar, in particular to a multifunctional LED desk lamp. Background technique [0002] Desk lamp is a kind of household electrical appliance that is used for lighting in people's daily life, and her working principle is mainly that light is concentrated in a small area, thereby can not affect the light of whole room, is convenient to work and study, along with LED Widely used, compared with ordinary desk lamps, energy-saving LED desk lamps are becoming more and more popular. LED light sources have the characteristics of high luminous efficiency, long life, fast start-up, high safety factor, and are not prone to visual fatigue caused by stroboscopic flicker. The desk lamp can concentrate the light in a corner of the room, and it is an essential lighting tool on the desk. Copywriters often ignore the time because of their work, so there is an alarm clock desk lamp with the function of a ringing alarm clock, ...

AI Technical Summary

Problems solved by technology

The desk lamp can concentrate the light in a corner of the room, and it is an essential lighting tool on the desk. Copywriters often ignore the time because of their work, so there is an alarm clock desk lamp with the function of a ringing alarm clock, but in the office, late at night Under such circumstances, the alarm clock tone becomes inappropriate, resulting in noise pollution, affecting the work and rest of others

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