What should be paid attention to for common switching power supply

Switching power supply is one of the power modules. It is also a very common power supply. The reason for adding the word "switch" is that it has a Schottky diode with switching characteristics in its internal structure. This diode has a very high switching frequency and can be quickly switched off for thousands of times in a short period of time. Each time can supply power and current output, which plays an important role in general integrated circuits. The following is a brief analysis of commonly used switching power supply and precautions for use for your reference.

Precautions for using switching power supply:

1. Before using the power supply, determine whether the input and output voltage specifications are consistent with the nominal value of the power supply used.

2. Before power on, check whether the input and output leads are connected correctly to avoid damaging the user's equipment.

3. To ensure the safety of use and reduce interference, please ensure that the grounding terminal is reliably grounded.

4. Please note that frequent switching of the power supply will affect its life.

5. The working environment and the degree of load will also affect its life.

6. Check whether the installation is firm, whether the mounting screws are in contact with the power board components, and measure the insulation resistance between the housing and the input and output to avoid electric shock.

7. The power supply with multi-channel output is generally divided into main output and auxiliary output. The main output characteristic is better than the auxiliary output. Generally, the power supply with large output current is the main output. In order to ensure the output load adjustment rate, output dynamic and other indicators, it is generally required to carry at least 10% load on each circuit. If the auxiliary road is used instead of the main road, the main road must be added with appropriate false load. Refer to the specifications of corresponding models for details.

The above common switching power supply and precautions for use are shared here. In general, switching power supply needs to pay attention to a lot of things. Only by taking the above matters into account, can we avoid the situation that it cannot be used normally. Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, electrical equipment, instruments and meters, medical equipment, semiconductor refrigeration and heating, air purifier, electronic refrigerators, LCD displays, LED lights, communication equipment, audio-visual products, security monitoring, LED light bags, computer chassis, digital products and instruments and other fields.