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Phase processing based low-pass filtering LED voltage stabilizing system

A low-pass filtering and phase processing technology, applied in the field of LED systems, can solve the problem of low power and achieve good stability

Inactive Publication Date: 2015-05-06
CHENGDU CHUANGTU 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 and cannot meet the needs of some large supermarkets at present, and to provide a high-power output low-pass filter LED voltage stabilization system based on phase processing

Method used

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  • Phase processing based low-pass filtering LED voltage stabilizing system

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Embodiment

[0018] Such as figure 1 As shown, the low-pass filter LED voltage stabilization system based on phase processing of the present invention consists of a transformer circuit, a two-stage low-pass filter amplifier circuit connected to the transformer circuit, and a shifter connected to the two-stage low-pass filter amplifier circuit. It is composed of a phase circuit, a voltage stabilizing circuit connected with the phase shifting circuit, and an output circuit connected with the voltage stabilizing circuit.

[0019] Among them, the phase-shifting processing circuit is composed of phase-shifting chip U1, triode VT4, triode VT5, one end of which is connected to the VCC+ pin of the phase-shifting chip U1, and the other end is connected to the IN1 pin of the phase-shifting chip U1. The resistor R13 is connected to the IN1 pin of the phase-shifting chip U1, and the positive electrode is connected to the IN2 pin of the phase-shifting chip U1. The polarity capacitor C10 whose negative...

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Abstract

The invention discloses a phase processing based low-pass filtering LED voltage stabilizing system. The phase processing based low-pass filtering LED voltage stabilizing system mainly comprises a voltage transformation circuit, a two-stage low-pass filtering and amplification circuit connected with the voltage transformation circuit, a phase shifting circuit connected with the two-stage low-pass filtering and amplification circuit, a voltage stabilizing circuit connected with the phase shifting circuit and an output circuit connected with the voltage stabilizing circuit. The phase shifting circuit consists of a phase shifting chip U1, an audion VT4, an audion VT5, a resistor R12, a polar capacitor C13 and the like, wherein one end of the resistor R12 is connected with VCC+ tube pin of the phase shifting chip U1, the other end of the resistor R12 is connected with the IN1 tube pin of the phase shifting chip U1, the negative pole of the polar capacitor C12 is connected with the IN1 tube pin of the phase shifting chip U1 through a resistor 13, the positive pole of the polar capacitor C12 is connected with the IN2 tube pin of the phase shifting chip U1. By means of the phase shifting processing circuit, good stability is well ensured while the output power of the LED drive system can be amplified.

Description

technical field [0001] The invention relates to an LED system, in particular to a low-pass filter LED voltage stabilizing system based on phase 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 some large supermark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 刘芳谢静
Owner CHENGDU CHUANGTU TECH
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