There are so-called parallel connections and series connections. If the voltage of a solar panel is sufficient, then it should be connected in parallel, that is, the positive and negative poles of the solar panels are connected together, and the negative and negative poles are connected together. This is a parallel connection. the voltage of one solar panel is not enough to charge the battery, then they must be used in series. The series connection method is that the positive electrode of the first block and the negative electrode of the second block are connected together, leaving. a positive electrode and a negative electrode to connect to the battery.
Please connect solar panels in parallel to charge the battery and use diodes to prevent backflow. Should the positive pole be connected to the top, or should the positive and negative poles be connected to diodes?
PanelssolarWhen they do not produce electricity at night, there will be leakage from a few milliamps to tens of milliamps, so they must be connected in series to prevent backflowDiode, When multiple blocks are connected in parallel, it is best to connect a diode to each block and then connect them together in parallel, so that the requirements for the diodes are relatively low.
Solar panel is a device that absorbs sunlight and converts solar radiation energy directly or indirectly into electrical energy by photoelectric effect or photochemical effect. The main function of most solar panels is the material "silicon". ", but due to its high production cost, its widespread use still has certain limitations.
Compared to ordinary batteries and recyclable rechargeable batteries, solar cellsThese are green products that are more energy efficient and more environmentally friendly. A solar cell is a device that responds to light and converts light energy into electricity.
There are many kinds 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. Crystalline P-type 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 theur transformation into 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 essence of this process is as follows: the process of converting photon energy into electrical energy.
The easiest way to confirm is that the diodes are usually marked. Just connect them to the battery in the direction shown, that is, connect the negative electrode to the battery and the positive electrode to the battery. solar panel. The diode is anti-reflux. If the connection method is correct, it will not conduct in the reverse direction and cannot form a loop. Therefore, simply connect a diode to the positive electrode of the solar panel. Otherwise, do not connect it backwards. , there will be no exit andit won't work. Acts like a reverse cutoff.