Linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system

Abstract

The invention discloses a linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system. The linear drive based two-stage low-pass filtering and amplification 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 voltage stabilizing circuit connected with the two-stage low-pass filtering and amplification circuit and an output circuit connected with the output end of the voltage stabilizing circuit and is characterized by further comprising a linear drive circuit connected with the voltage transformation circuit and the two-stage low-pass filtering and amplification circuit simultaneously. The linear drive circuit consists of a drive chip U1, an audion VT5, an audion VT6, an audion VT7, an audion VT8, a polar capacitor C13 and the like, wherein the positive pole of the polar capacitor C13 is connected with the voltage transformation circuit, the negative pole of the polar capacitor C13 is connected with the IN1 tube pin of the drive chip U1 through a resistor R12. The output power of the linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system can be amplified by means of the linear drive circuit, and the system can meet more LED simultaneous usage demands.

Description

technical field [0001] The invention relates to an LED system, in particular to a two-stage low-pass filter amplification LED voltage stabilization system based on linear drive. 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 o...

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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 two-stage low-pass filter amplification LED voltage stabilization system based on linear drive with high power output

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