Integrated AC type LED lamp filament

An LED filament, integrated die technology, applied in lighting and heating equipment, electrical components, circuits, etc., can solve problems such as application scope and convenience limitations, and achieve simplified process and design, good white light effect, economical and efficient communication lighting effect

Inactive Publication Date: 2005-10-19
吕大明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The LED lamp made of this kind of LED integrated tube core can be directly connected to a DC power supply suitable for its voltage range, but if it is to be used in an AC power supply occasion, it is necessary to add AC and DC rectification, filtering and other circuits. Its application range and convenience are limited

Method used

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  • Integrated AC type LED lamp filament
  • Integrated AC type LED lamp filament
  • Integrated AC type LED lamp filament

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0025] Embodiment 2, a three-stage integrated AC LED filament with a constant current source circuit, combined with figure 1 , Figure 4 with Figure 5 , compared with Embodiment 1, the constant current source circuit Ic integrated in series with each row of series integrated dies is added, and its equivalent circuit diagram is as follows Figure 4 shown. The constant current source circuit Ic has Figure 5 The structure shown includes a triode T used as a drive current regulating tube, its emitter is connected in series with a current-limiting feedback resistor Re, and its base is connected in series with a diode D2, which is then connected in parallel as a current output terminal, and its collector is connected in series with another diode D1 Afterwards, a base bias resistor Rb is connected in series with the base and then connected in parallel as the current input terminal.

[0026] In this example, the diode D1 can be an external diode or a single die in the series int...

Embodiment 3

[0027] Embodiment 3. A white light three-stage integrated AC LED filament has the same structure as Embodiment 1, and the three light-emitting diode dies 2, 3, and 4 integrated in series are red, green, and blue respectively. color.

[0028] The realization of the present invention can be arranged after the single LED tube core is produced, and the required several single LED tube cores are integrated together in a multi-stage series structure to manufacture an equivalent LED with a higher VF Integrated tube core; the process can also be advanced to the production process of the single LED tube core, for example, for a single type of LED or for LEDs using the same semiconductor basic material, the realization of the present invention can be achieved in the early stage processes such as doping and masking. On the substrate material, a continuous PN junction structure is formed by direct masking, so that the subsequent process and cost can be simplified. Image 6 It is a schema...

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PUM

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Abstract

This invention discloses an integrated AC LED filament including two arrays of parallel serial integrated dies in opposite conduction directions composing at least two stages of serially integrated dies, a stage of die refers to one die or many dies connected in series or parallel or a mixed way. Advantages: since the filament contains two arrays of serial integrated dies in opposite conduction direction, it is connected with AC supply directly in proper voltage sphere to realize economic and high-efficient illumination, the working voltage of LED filament is designed in standardization by controlling numbers of dies and kinds, various kinds of products can be got.

Description

【Technical field】 [0001] The invention relates to an LED die, in particular to an integrated AC LED filament. 【Background technique】 [0002] Conventionally produced LED tubes are generally "single-core" products. Single-core LEDs have various structural forms, usually in-line type, patch type, etc. The positive and negative electrodes of the tube core on the substrate are respectively passed through pure gold. The wires are connected to pins protruding from the bracket. There are generally at least two pins on the electrical connection of the LED, one is the positive pole of the LED, and the other is the negative pole. At present, increasing the luminous output of a single LED is a common pursuit in the industry. There are two solutions: one is to improve the luminous efficiency of the die material to achieve F Obtaining greater luminous flux without changing the situation is the main direction of huge investment in research and development at home and abroad, but the roa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/20F21Y115/10H01L25/075H01L25/13H01L27/15H01L33/00
Inventor 吕大明
Owner 吕大明
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