A high-efficiency intelligent solar lamp control circuit

Abstract

The invention discloses an efficient and intelligent solar lamp control circuit. The efficient and intelligent solar lamp control circuit comprises a charging and discharging part, a sensing part and a sensing control part. The efficient and intelligent solar lamp control circuit has the following advantages that the number of external components is small, the component loss is small, charging efficiency is high, and efficient charging can be achieved; the number of the components of the system is small, the system can be directly integrated at a load end, the cable loss is reduced, and maintenance cost is low; the service life of a battery is made optimal by over-charging, over-discharging and over-current protection of the battery; intelligent power regulation is achieved, when the battery capacity is lowered, the output current can be lowered automatically by the system, traditional PWM regulation is replaced, the output ripple is extremely small, and an LED lamp is not stroboscopic; output is made more reasonable through sensing control, the output current can be lowered when nobody is around, total-power working can be achieved when somebody is in, and the battery capacity can be made smaller under the same configuration.

Description

technical field [0001] The invention relates to an electrical performance management device, in particular to a high-efficiency intelligent solar lamp control circuit. Background technique [0002] The solar outdoor lighting on the market has single dimming, mainly time-controlled dimming. It cannot be adjusted according to the brightness of the cycle environment and whether there are people around, and it will not change the power according to the battery capacity, which requires high battery capacity. In the case of sufficient sunlight, the battery in the solar outdoor lighting is prone to overcharge and excessive current. Excessive overcharging will lead to the scrapping of the battery, and overdischarging of the battery will lead to a sharp reduction in the service life of the battery. Therefore, managing the charging and discharging process of the battery is fundamental to prolonging the service life of the battery. Contents of the invention [0003] The purpose of ...

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Problems solved by technology

[0002] The solar outdoor lighting on the market has a single dimming method, mainly based on time-controlled dimming. It cannot be adjusted according to the brightness of the cycle environment and whether there are people around, and it will not change the power according to the battery capacity, which requires high battery capacity.

In the case of sufficient sunlight, the battery in the solar outdoor lighting is prone to overcharge and excessive current. Overcharging of the battery will lead to the scrapping of the battery, and over-discharging of the battery will lead to a sharp reduction in the service life of the battery

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