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LED high-voltage module driven by 220V alternating current

An AC drive, LED module technology, applied in the direction of electric light source, circuit layout, illuminated signs, etc., can solve the problem that ordinary LED light-emitting modules cannot be directly connected to 220V AC power, etc., to save low-voltage DC power supply, voltage application range Wide and reduce the effect of failure rate

Inactive Publication Date: 2014-04-09
李忠训
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a LED high-voltage module driven by 220V AC, which mainly solves the problem that ordinary LED lighting modules in the prior art cannot be directly connected to 220V AC.

Method used

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  • LED high-voltage module driven by 220V alternating current
  • LED high-voltage module driven by 220V alternating current
  • LED high-voltage module driven by 220V alternating current

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Embodiment

[0030] In the LED low-voltage module disclosed in the present invention, a plurality of LED modules 2 are connected in series through one power supply box 1 to complete the function of the LED light box light source.

[0031] like figure 1 As shown, the AC / DC conversion circuit is fixed inside the power supply box 1, and the AC / DC conversion circuit includes a piezoresistor connected to the mains at both ends, and a varistor connected between one end of the varistor and the mains A fuse, a thermistor connected between the other end of the piezoresistor and the mains, a rectifier connected in parallel with the piezoresistor, and a step-down constant current circuit connected to the output end of the rectifier; the LED lamp The bead is connected in series with the step-down constant current circuit. The step-down constant current circuit includes a filter capacitor C1 connected in parallel with the output terminal of the rectifier, a constant current chip connected in parallel ...

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Abstract

The invention discloses an LED high-voltage module driven by the 220V alternating current, and belongs to the LED technical field. The LED high-voltage module comprises a long-strip lamp box body and an LED lamp bead, wherein the long-strip lamp box body is composed of a power pack carrying an AC / DC conversion circuit and at least one LED module connected by module connecting lines, and the LED lamp bead is located on the LED module and connected with the AC / DC conversion circuit. The AC / DC conversion circuit comprises a voltage dependent resistor, a fuse, a thermistor, a rectifier and a voltage reduction constant current circuit, wherein the two ends of the voltage dependent resistor are respectively connected with the commercial power, the fuse is connected between one end of the voltage dependent resistor and the commercial power, the thermistor is connected between the other end of the voltage dependent resistor and the commercial power, the rectifier is connected with the thermistor in parallel, and the output end of the rectifier is connected with the voltage reduction constant current circuit. The LED lamp bead is connected with the voltage reduction constant current circuit in series. According to the LED high-voltage module, the problem that an LED lamp box of a low-voltage module cannot be directly and externally connected with the commercial power at present is solved, the illumination uniformity is improved, and popularization and use are easily achieved.

Description

[0001] technical field [0002] The invention relates to an LED light box, in particular to an LED high-voltage module driven by 220V alternating current. Background technique [0003] In recent years, the LED advertising sign industry has achieved rapid development. With the rising awareness of global energy conservation and the relatively high electricity price of traditional light sources, LED light sources are energy-saving and environmentally friendly. At the same time, they support the industry for national policies and promote the continuous introduction of LED light box light sources in the fields of commerce, construction, and advertising signs. Among them, the LED light box of the low-voltage module is widely used in the advertising signage industry due to its advantages such as low luminous heat, long life, and small size. [0004] At present, the advertising sign industry mainly uses low-voltage modules, which adopt the technical scheme of separating low-voltage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V23/00G09F13/00H05B37/02F21Y101/02F21Y115/10
Inventor 李忠训
Owner 李忠训
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