Control circuit of intellectualized LED street lamp

Abstract

The invention relates to a control circuit of an intellectualized LED street lamp, which comprises an AC / DC power source conversion circuit, a power transformation circuit and an LED module which are sequentially connected, wherein a central processing unit and a DC / DC conversion module are also arranged between the power transformation circuit and the LED module, the central processing unit drives the LED module after the DC / DC conversion module is controlled by a PWM regulation mode, and the LED module is connected with the central processing unit in a feedback way; the central processing unit is connected to the power transformation circuit and the AC / DC power source conversion circuit in a control way and is also connected with a working environment monitoring sensor and a working state sensor; and the power transformation circuit is provided with a feedback signal connected to the AC / DC power source conversion circuit. The invention greatly enhances the whole working efficiency of an LED street lamp when working, and the whole working efficiency can reach more than 87%, so that the aim of saving more energy is realized.

Description

【Technical field】 [0001] The invention relates to an LED control circuit, in particular to an intelligent LED street lamp control circuit. 【Background technique】 [0002] In the 21st century, environmental protection has become a worldwide problem. All countries are looking for high-efficiency and energy-saving environmental protection products. LED lights have the advantages of high conversion efficiency, low calorific value, and durability, and are generally favored by the industry. In recent years, white light spectrum and high-power LED lamps have appeared, and their applications have become increasingly widespread. Nowadays, arrays of high-power LED lamps have been made into various street lamps to replace the previous gas discharge lamps. However, the LED street lamp drive circuits on the market all use a simple AC / DC switching power supply conversion circuit combined with a constant current conversion circuit to directly drive the LED lamp array. Reaching about 83%, ...

AI Technical Summary

Problems solved by technology

However, the LED street lamp drive circuits on the market all use a simple AC / DC switching power supply conversion circuit combined with a constant current conversion circuit to directly drive the LED lamp array. Reaching about 83%, and its function is single, the whole circuit system lacks the necessary control feedback detection function, the stability of the overall product cannot be guaranteed, and it does not have the functions of accuracy and flexibility at all, and cannot adapt to the current rapidly developing market demand.

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