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Protective circuit of luminescence module, light emitting diode wafer and alternating current light emitting diode

A technology of light-emitting diodes and light-emitting modules, which is applied in the field of related modules, chips and protection circuits, and can solve problems such as damage to AC light-emitting diodes

Inactive Publication Date: 2011-04-20
ZHANJING TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a pity that there is no relevant protection circuit for such novel components as AC light-emitting diodes. Therefore, when a product containing the AC light-emitting diodes has excessive voltage or current, will cause damage to the AC LED

Method used

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  • Protective circuit of luminescence module, light emitting diode wafer and alternating current light emitting diode
  • Protective circuit of luminescence module, light emitting diode wafer and alternating current light emitting diode
  • Protective circuit of luminescence module, light emitting diode wafer and alternating current light emitting diode

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0019] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed descriptions of eight preferred embodiments with reference to the drawings.

[0020] Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

[0021] Before describing the preferred embodiments of the present invention, this paragraph first describes the operation principle and characteristics of the AC LED.

[0022] refer to figure 1 , an AC LED 7 has a first end 791, a second end 792, and five DC LEDs 70-74. When the AC LED 7 is electrically connected to an AC current source 8, the polarity of the voltage received by the first terminal 791 and the second terminal 792 will change with time, assuming that ...

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Abstract

The invention provides a luminescence module, comprising an alternating current light emitting diode which has a first end and a second end and a circuit protective component which has a first end and a second end, wherein at least one end of the circuit protective component is connected with the alternating current light emitting diode. When the voltage difference between the two ends of the circuit protective component is above a voltage critical value, the circuit protective component can form an essentially short circuit path. Or, when the amount of the current flowing through the circuit protective component is greater than a current critical value, the circuit protective component can form an essentially open circuit path. Consequently, the invention can effectively prevent light emitting diodes from being damaged due to surge voltage or excessive current caused by circuit faults.

Description

technical field [0001] The invention relates to a related module, chip and protection circuit of a light-emitting diode, in particular to a related module, chip and protection circuit applied to an AC light-emitting diode. Background technique [0002] AC LED (ACLED) is a novel electronic component. Its main difference from the traditional DC LED is that when the AC LED is applied to an AC voltage system, it can still emit light at any time. Diodes emit light. In addition, in most of today's products with built-in DC LEDs (for example: lamps with DC LEDs as light sources), an AC-to-DC Converter (AC-to-DC Converter) is required to make the product It is applied to the mains power system, but if the light-emitting diode of this product uses AC light-emitting diodes, it does not need to use an AC-DC converter, so it can reduce production costs and expand the application range. It is a pity that there is no relevant protection circuit for such novel components as AC light-emitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V23/00H05B37/02H01L33/00
CPCY02B20/341H05B33/0809H05B33/089H05B45/50Y02B20/30
Inventor 陈岳志张家诚
Owner ZHANJING TECH SHENZHEN