Solar LED lamp controller

Abstract

The invention discloses a solar LED lamp controller, which comprises a solar panel, an energy storage battery, a power conversion circuit, a dimming circuit, a light source circuit, a charging volume sampling circuit, an amplifying circuit, a singlechip circuit, a push button circuit and a drive circuit, the sampling circuit real-timely samples the current charged to the energy storage battery by the solar panel, and converts the sampled current into a voltage signal, which is amplified and outputted to the singlechip circuit, the singlechip circuit calculates intraday charging volume, a corresponding control signal is generated to the dimming circuit according to the corresponding relation between the intraday charging volume and output control, the dimming circuit modulates the power conversion circuit, so that the power conversion circuit can output different corresponding power to regulate the light of a light source, consequently, the solar panel and the energy storage battery which have the same configurations still can normally switch on the lamp in more successive cloudy days under the circumstance of meeting the minimum illumination effect of the light source, and thereby the illumination guarantee rate is increased. The technique is particularly suitable for regions with short daily sunshine durations in winter.

Description

technical field [0001] The invention relates to a controller, in particular to an LED lamp controller capable of controlling the luminous brightness of an LED lamp group according to the charging amount of the day. Background technique [0002] LED (light emitting diode in English) is a light-emitting diode, which is made of electroluminescent semiconductor materials. LED has low voltage, high efficiency, good monochromaticity, strong applicability, good stability, and fast response time. Excellent characteristics such as short life, long life, and no pollution to the environment; LEDs are generally powered by low-voltage power sources, and the power supply voltage is generally between 2-24V, which is more secure; the energy consumption of LEDs is 80% lower than that of incandescent lamps with the same light efficiency; Each unit LED is very small, and can be made into lighting fixtures of various shapes, and is suitable for different environments; because LED has the above ...

AI Technical Summary

Problems solved by technology

In order to control its cost within a certain range, the solar lamps designed in the prior art are usually designed and configured to meet the continuous cloudy use of 5 to 7 days, and its controller is usually designed as a fixed output, or this controller is designed to reduce the product cost. At most, it is designed as a timing dimming control (as in the middle of the night), because it is impossible to guarantee the lighting of the LED light group when the battery storage capacity is low or the charging capacity is low in cloudy or rainy days when the minimum relative lighting effect is met. Therefore, in cloudy or rainy days, when the charging power of the solar panel is insufficient for charging the battery or the storage capacity of the battery is low, if you continue to use the same brightness to make the LED When the light group lights up, the power of the energy storage battery will be used up quickly, which affects the lighting guarantee rate of the LED light during normal use.

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