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Slight light-preventing non-isolation type driver LED ceiling light

A LED lamp, non-isolated technology, applied in lighting devices, light sources, electrical components, etc., can solve the problem of small amount of lamp beads, achieve simple grounding, solve series resonance, and be technically simple and easy to implement

Pending Publication Date: 2018-08-31
海宁福得电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-slightly bright non-isolated driving LED ceiling lamp, which is intended to solve the problem that the zero and live wires of the non-isolated LED ceiling lamp are reversed, resulting in a small amount of lamp beads

Method used

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  • Slight light-preventing non-isolation type driver LED ceiling light
  • Slight light-preventing non-isolation type driver LED ceiling light
  • Slight light-preventing non-isolation type driver LED ceiling light

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments;

[0021] The main reasons for the trace amount of lamp beads:

[0022] 1. Characteristics of non-isolated lighting driver

[0023] Now the non-isolated drivers for different lamps on the market use several variants of the BUCK circuit. A few typical application lines are given below, see Figure 1-3 , they all have a common feature, that is, the LED lamp bead is suspended, not directly connected to the ground after bridge rectification, it is a floating ground, when working, there is a voltage difference between them and the ground, (AC input 220×1.414-lamp bead Voltage ≥ 200V (voltage difference above 200V) (the voltage of the lamp bead string is different, and the voltage is different), which is the basis for the lamp to be sl...

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Abstract

The invention discloses a slight light-preventing non-isolation type driver LED ceiling light, comprising an LED light and a non-isolation type LED driver; the ceiling light is characterized in that the non-isolation type LED driver comprises a rectifying circuit, a filtering circuit and a constant current control circuit; the rectifying circuit is a bridge type rectifying circuit; the front stageof the bridge type rectifying circuit is connected with one pin of a capacitor while the other pin of the capacitor is grounded; the non-isolation type LED driver is integrated with a power supply wiring connector and a grounding wiring connector; and the grounding pin of the capacitor is connected with the LED light shell in an electric connection manner, and also connected with a grounding terminal. The ceiling light is simple in circuit structure, low in cost and reliable, and high in slight light-preventing effect through skillful optimization of the grounding mode.

Description

technical field [0001] The invention belongs to the technical field of non-isolated LED drive circuits, and in particular relates to an anti-microbright non-isolated drive LED ceiling lamp. Background technique [0002] In recent years, LED lamps have been favored by consumers due to their power saving and high brightness, especially LED ceiling lamps have been fully promoted because of their cleanliness and convenience. [0003] Due to some reasons, the difference in the level of our home decoration electricians and the needs of special occasions, the neutral and live wires of the switches in many homes or other places are reversed, and the switch controls the neutral wire, resulting in the lamps being always charged, and causing non-isolated LED lamps (including energy-saving lamps) ) is slightly bright or flickering when the switch is turned off. This leads to several problems. One is that the service life of the lamps is greatly shortened due to the fact that they are c...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00
Inventor 莫均明钱海林
Owner 海宁福得电器有限公司