LED street lamp with double power saving effect

Abstract

Provided is an LED street lamp with the double power saving effect. A circuit of the LED street lamp comprises a main circuit composed of a bidirectional SCR and an LED lamp and an auxiliary circuit composed of a turn-on circuit, a lamp socket voltage detection circuit, a timing circuit and a voltage/ light regulation circuit. The double power saving effect is achieved by the following effective measures: the characteristic that the conduction angle of the bidirectional SCR can be regulated to be both large and small is utilized, when the traffic is heavy, the LED street lamp is controlled to work in a large luminance state, and when pedestrians and vehicles are few after midnight, a timer outputs trigger control signals to start the voltage/light regulation circuit to greatly reduce the luminance of the LED street lamp. Therefore, on the basis of the energy saving effect of the LED street lamp itself, considerable electric energy is further saved by reducing the luminance of the lamp, and consequentially the double power saving effect is achieved.

Description

technical field [0001] The invention relates to a double power-saving LED street lamp. Background technique [0002] According to relevant survey data, after 11 o'clock at night in small cities in my country, and after 2 o'clock in the morning in large and medium-sized cities, there are few pedestrians and vehicles on the road. It is obviously unnecessary to maintain a high level of light illumination on this low-traffic road. From this period until 6 o'clock in the morning, most cities and regions in China have adopted the energy-saving method of turning off street lamps at intervals. Traffic safety has buried hidden dangers, and it is unavoidable that the increase in grid voltage in the middle of the night will reduce the life of street lamps. Contents of the invention [0003] A dual power-saving LED street lamp, the design concept of which is: during the time when the road traffic is busy, the street lamp is controlled to maintain a strong illuminance. When the pedes...

AI Technical Summary

Problems solved by technology

From this period until 6 o'clock in the morning, most cities and regions in China have adopted the energy-saving method of turning off street lamps at intervals.

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