Solar panels are connected in series.
Solar panels are devices that absorb sunlight and convert solar radiation energy directly or indirectly into electrical energy by photoelectric effect or photochemical effect. The main material of most solar panels is “silicon”. but due to high production cost, it cannot be widely and commonly used.
Solar panel
The sun is a huge source of energy. It emits approximately 3.8 × 10 million joules of energy into space as light radiation every second, or one part in 2.2. billion on earth. After sunlight is reflected and absorbed by the atmosphere, 70% is transmitted to the ground. Despite this, the solar energy received by the Earth in one year still reaches 1.8×10^18kW·h.
The output current of solar panels increases when connected in parallellele, while the output voltage increases when connected in series. Whether you connect them in series or parallel depends on your load requirements. The panels are 1.2V, but the charging requirements If the voltage is 3.6V, you need to connect three battery boards in series. If your load only requires 1.2V input voltage, you can connect three battery boards in parallel.
What are the functions of series and parallel solar cell arrays?
Solar panelscan be connected in series. Can be powered by 3 solar panels. Two batteries connected in series do not simply constitute a series connection. The parallel connection is not much different from the theory. Battery resistance is related to the battery type, i.e. manufacturing materials and structure, and the resistance is not constant during use.ilization.
The operating current has also reached more than 10A, and the efficiency of the switching power supply can reach about 75%. That is, a 100W solar panel produces 75W of power via the switching power supply if divided by. 6v, the maximum current value of 12.5a can be obtained.
The principle of energy production of solar panels;
A solar cell is a device that reacts to light and can convert light energy into electricity. There are many types of materials that can produce photovoltaic effects, such as: monocrystalline silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, copper selenium indium, etc. Their principles of energy production are basically the same. Today, crystalline silicon is used as an example to describe the photovoltaic power production process. P-type crystalline silicon is doped with phosphorus to obtain N-type silicon, forming a P-N junction.
When light irradiates the surface of the solar cell, part of the photons are absorbed by the silicon material; the energy of the photons is transferred to the silicon atoms, causing the electrons to transition and become free electrons. accumulate on both sides of the P-N junction to form a potential difference, when the external circuit is connected, under the action of this voltage, a current will flow through the external circuit to produce a certain output power.
The solar cell array connects multiple components in series and parallel depending on the needs of the load. Make combination connections to obtain the specified output current and voltage. The power output from the network that powers the load is connected in series with the components. The number linked to the concatenation allows us to obtainthe required numberThe required operating voltage is connected in parallel to obtain the required operating current.