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Energy-saving type blue light LED lamp filtering amplification type protection system

A technology for LED lamps and protection systems, applied in the direction of light sources, electric light sources, electroluminescent light sources, etc., can solve the problems of poor overall protection, high energy consumption, complex structure, etc., to achieve improved sensitivity and precision, low power consumption, The effect of overcoming the delay effect

Inactive Publication Date: 2015-10-21
CHENGDU LEIKEER SCI & TECH
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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 overcome the defects of complex structure, high energy consumption and poor comprehensive protection in the current LED lamp protection system, and provide an energy-saving blue LED lamp filter amplification protection system

Method used

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  • Energy-saving type blue light LED lamp filtering amplification type protection system
  • Energy-saving type blue light LED lamp filtering amplification type protection system
  • Energy-saving type blue light LED lamp filtering amplification type protection system

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Embodiment

[0031] Such as figure 1 As shown, the present invention mainly consists of a gate drive circuit 50, a logic control circuit 40, an oscillator 30, a power amplifier P1, a power amplifier P2, a pulse comparator U1, a pulse comparator U2, a beam-excited logic amplifier circuit, and a field effect tube MOS1, field effect transistor MOS2, field effect transistor MOS3 and field effect transistor MOS4, filter amplifier circuit, and logic protection emitter coupled amplifier circuit 20 are composed.

[0032] When connected, the output terminals of the power amplifier P1, the output terminals of the power amplifier P2, the output terminals of the pulse comparator U1 and the output terminals of the pulse comparator U2 are all connected with the logic control circuit 40, and the two output terminals of the oscillator 30 The oscillator 30 is respectively connected to the negative input terminal of the pulse comparator U1 and the negative input terminal of the pulse comparator U2 to ensure...

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PUM

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Abstract

The invention discloses a protective system of an energy-saving type blue light LED lamp. The system mainly consists of grid drive circuits, logic control circuits, a power amplifier P1, a power amplifier P2, a pulse comparator U1, a pulse comparator U2, a field-effect tube MOS1, a field-effect tube MOS2, a field-effect tube MOS3, a field-effect tube MOS4 and the like, wherein the power amplifier P1, the power amplifier P2, the pulse comparator U1 and the pulse comparator U2 are connected with the logic control circuits, and all grids of the field-effect tube MOS1, the field-effect tube MOS2, the field-effect tube MOS3 and the field-effect tube MOS4 are connected with the grid drive circuits. The system is characterized in that light beam excitation type logic amplifying circuits and logic protection emitter coupling type amplifying circuits are in series connection between cathodic input terminals of the power amplifier P1 and the power amplifier P2. The system disclosed by the invention has the functions of short circuit protection, overvoltage protection and open circuit protection, and the lower power dissipation is 1 / 3 of that of a traditional protective circuit.

Description

technical field [0001] The invention relates to an LED protection circuit, in particular to an energy-saving blue light LED lamp filter amplification protection system. Background technique [0002] At present, due to the characteristics of low energy consumption, long service life, safety and environmental protection, LED lamps have become one of the mainstream products for people's living lighting. Since LED lamps are different from traditional incandescent lamps, they need to be driven by a dedicated drive circuit, so there are various protection systems on the market to prevent the drive system from being interfered by internal or external adverse factors. [0003] Although most of these protection systems have short-circuit protection functions and overheat protection functions, the structures of these protection systems are often relatively complicated, and their maintenance is relatively difficult. At the same time, the energy consumption of these protection systems ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCH05B45/50H05B45/37H05B44/00
Inventor 黄涛
Owner CHENGDU LEIKEER SCI & TECH