Timing automatic voltage (light) regulating type LED street lamp

Abstract

The invention provides a timing automatic voltage (light) regulating type LED street lamp. The timing automatic voltage (light) regulating type LED street lamp is characterized in that the circuit structure of the LED street lamp is composed of two portions including a working main circuit and a timer circuit. In a time period from work starting to timing time setting of the LED street lamp, the LED street lamp can be used to facilitate the driving and walking of cars and pedestrians on a related road with a bright illumination working condition; and in a time period in which the timing time of the timer expires, partial capacitance in a resistive and capacitive step-down circuit is cut off by an automatic control circuit of the timer, so that partial working current of the LED street lamp can be reduced to make the LED street lamp work in a low-voltage working condition and make the LED street lamp escape from the dangers caused by extra-high voltages of lines, so not only the consumption of partial electric energy can be reduced, and but also the durability of the LED street lamp can be ensured.

Description

technical field [0001] The invention relates to an LED street lamp with timing automatic voltage (light) regulation. Background technique [0002] At present, the LED street lamps used in the roads of cities and towns and the stairway passages of residential buildings are all lit up from dark until the lights are turned off at dawn the next day. The lamps do not have the function of voltage regulation (light). Always on. When the middle of the night arrives, there are few pedestrians and vehicles walking on the urban roads, and there are few people walking in the stairways of residential buildings. In this situation, it is obviously unnecessary to still let the LED street lamps work in a bright working state all the time. And in the second half of the night, the voltage of the line increases relatively, and sometimes when the increased voltage even exceeds the rated value, the excessive voltage will cause light decay of the LED street lamp, and even damage the LED street l...

AI Technical Summary

Problems solved by technology

And in the second half of the night, the voltage of the line increases relatively, and sometimes when the increased voltage even exceeds the rated value, the excessive voltage will cause the LED street lamp to have light decay, and even cause the LED street lamp to be damaged.

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