Solar rgb flood light circuit principle

release time:

2023-05-31 11:49

How many people know the principle of solar rgb flood light circuit? Solar LED lights are not powered by light sources, but use the sun to generate electricity together with the circuit. A solar cell acts as a light source and its output is used to turn on the LED. When it gets dark, the output of the solar cell increases and turns off Q1. As the light source voltage drops, the transistor turns on and turns on the LED.

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During the day, the solar panels generate the necessary voltage. This voltage is then applied to the rechargeable battery through a diode. To regulate the voltage, you need to set the resistor R* to the specification of the battery. Resistor R* is the current limiting resistor for the LED, typically 10 ohms. The solar rgb flood light comes on when the battery current decreases, that's why the battery voltage drops significantly after five or six hours.
The solar rgb flood light is made with a photovoltaic process that converts sunlight into electricity. Solar energy is captured by polysilicon photovoltaic modules. When the photoreceptor detects sunlight, it pushes electrons into positively charged space, and this energy then powers the LED. The battery then stores energy from the photovoltaic cells to power the LED lights.
A transistor in this circuit generates the pulse that turns on the LED. This allows the LEDs to light up as dusk falls. Besides that, the 1K resistor helps the transistor to turn on and produce full brightness on the LED. There are several ways to modify the circuit. The picture above is a simple version of the circuit, but you can use more complex versions. It is important to note that the transistors are numbered wrong in the circuit, the resistor is connected to the emitter.
The ultra-high brightness of solar rgb flood light greatly reduces the cost of solar lighting. In addition, LEDs are long-lived, reliable and emit no radiation. Therefore, they have the potential to replace traditional lighting. LEDs have several advantages such as low operating voltage and energy saving capabilities. LEDs are an excellent innovation in solid-state light sources. The technology is developing rapidly and has broad application prospects.