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Open circuit protection circuit and illuminating system having the open circuit protection circuit

An open circuit protection and lighting system technology, applied in the field of lighting systems, can solve problems such as LED lights not working

Inactive Publication Date: 2016-01-06
OPPLE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The series combination of LED lamps is a relatively common connection method. The series circuit generally uses a constant current source. Once multiple LED lamps in series are removed or one or more are damaged, the remaining LED lamps will also fail to work at the same time.

Method used

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  • Open circuit protection circuit and illuminating system having the open circuit protection circuit
  • Open circuit protection circuit and illuminating system having the open circuit protection circuit

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0015] Such as figure 1 Shown is a circuit diagram of an open circuit protection circuit 1 disclosed in the present invention, which is connected in parallel with a light emitting element 2 . The open circuit protection circuit 1 has an input terminal Vin and an output terminal Vout, and also has a thyristor SCR. The thyristor SCR has three pins, which are the control pole G, the positive pole SCR+ and the negative pole SCR-. The control electrode G of the thyristor SCR and the positive electrode SCR+ are connected to the input terminal Vin, and the negative electrode is connected to the output terminal Vout. In a preferred embodiment of the present invention, an RC circuit is connected between the gate G of the thyrist...

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Abstract

The present invention discloses an open circuit protection circuit and an illuminating system having the open circuit protection circuit. The open circuit protection circuit is connected in parallel with a light emitting element, is provided with an input end and an output end, and comprises a silicon controlled rectifier (SCR), a control electrode and a positive electrode of the SCR are connected at the input end, a negative electrode of the SCR is connected at the output end, and an RC circuit is connected between the control electrode and the negative electrode of the SCR. And an illuminating system having the open circuit protection circuit is also provided.

Description

technical field [0001] The invention relates to an open circuit protection circuit and a lighting system with the open circuit protection circuit. Background technique [0002] In the context of the current global energy shortage rising again, saving energy is an important issue we face in the future. In the field of lighting, LED is called the fourth-generation lighting source or green light source. Small and other characteristics, can be widely used in various indications, displays, decorations, backlights, general lighting and urban night scenes and other fields. As a new type of green light source product, LED must be the trend of future development. The 21st century will enter the era of new lighting sources represented by LED. Due to the low power of a single LED, in order to increase the power of LED lamps, it is necessary to select a combination of multiple LED lamps to meet the purpose of high power in high-power lighting places. The most typical application field ...

Claims

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Application Information

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IPC IPC(8): H05B37/00
Inventor 冯守刚高松
Owner OPPLE LIGHTING
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