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LED voltage-stabilizing system based on two-stage low-pass filtering and amplification processing

A LED system and low-pass filtering technology, applied in the field of LED systems, can solve the problems of low power, improve service life, reduce voltage fluctuations, and ensure normal operation

Inactive Publication Date: 2015-09-09
CHENGDU LEIKEER SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the output power of the LED system is not high enough to meet the needs of some large supermarkets at present, and to provide a high-power output LED voltage stabilization system based on two-stage low-pass filter amplification processing

Method used

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  • LED voltage-stabilizing system based on two-stage low-pass filtering and amplification processing
  • LED voltage-stabilizing system based on two-stage low-pass filtering and amplification processing

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Embodiment

[0022] Such as figure 1 , 2 As shown, the present invention mainly includes a voltage-changing circuit, a voltage-stabilizing circuit, an output circuit connected to the output terminal of the voltage-stabilizing circuit, and a two-stage low-pass filter amplifier circuit is also arranged between the voltage-stabilizing circuit and the voltage-changing circuit. A mirror-type voltage stabilizing oscillation circuit 10 is also connected to the transformer circuit.

[0023]Among them, the two-stage low-pass filter amplifying circuit is composed of amplifier P1, amplifier P2, transistor VT2, transistor VT3, capacitor C4 whose positive pole is connected to the transformer circuit and negative pole is grounded, one end is connected to the positive phase input end of the amplifier P1, and the other end The resistor R3 connected to the positive pole of the capacitor C4, the positive pole is connected to the inverting input terminal of the amplifier P1 after passing through the resisto...

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PUM

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Abstract

Disclosed in the invention is a mirror type voltage-stabilizing oscillation LED system based on two-stage low-pass filtering and amplification processing. The system is composed of a transformation circuit, a voltage-stabilizing circuit, and an output circuit connected with the output terminal of the voltage-stabilizing circuit. The system is characterized in that a two-stage low-pass filtering and amplification circuit is also arranged between the voltage-stabilizing circuit and the transformation circuit. A mirror type voltage-stabilizing oscillation circuit is connected to the transformation circuit. With the system, the voltage becomes stable and the voltage fluctuation is reduced; the service life of the circuit is improved; the output power of the LED system is amplified; and the requirement of simultaneous usage of multiple LEDs can be met.

Description

technical field [0001] The invention relates to an LED system, in particular to an LED voltage stabilizing system based on two-pole low-pass filter amplification processing. Background technique [0002] LED is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It is widely used in various indications, displays, decorations, backlights, general lighting, and urban night scenes. [0003] In large shopping malls or supermarkets, in order to achieve better lighting effects, many LED lights are often used at the same time, which has high requirements for the LED drive system. The output power of the current LED system is not high, which cannot meet the needs of some large supermarkets. Contents of the invention [0004] The purpose of the present invention is to overcome the defect that the output power of the LED system is not high enough to meet the needs of so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 黄涛
Owner CHENGDU LEIKEER SCI & TECH
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