Switching power supply is a kind of power module. It is also a very common power supply. The reason why the word switch is added is because its internal structure has a Schottky diode with switching characteristics. This diode has a high switching frequency and can quickly switch on and off in a short period of time. Thousands of times. And each time it can supply power and current output, this power supply plays an important role in general integrated circuits. The following is a brief analysis of commonly used switching power supplies and precautions for use for your reference.
Precautions for using switching power supply:
1. Before using the power supply, first determine whether the input and output voltage specifications match the nominal value of the power supply used.
2. Before powering on, check whether the input and output leads are connected correctly to avoid damaging user equipment.
3. To ensure the safety of use and reduce interference, please ensure that the ground terminal is reliably grounded.
4. Please note: Frequent switching of the power supply will affect its lifespan.
5. The working environment and load level will also affect its life.
6. Check whether the installation is firm, whether there is contact between the installation screws and the power board components, and measure the insulation resistance of the shell, input and output to avoid electric shock.
7. Power supplies with multiple outputs are generally divided into main and auxiliary outputs. The characteristics of the main output are better than those of the auxiliary output. Generally, the one with the larger output current is the main output. In order to ensure indicators such as output load regulation rate and output dynamics, each channel is generally required to carry at least 10% load. If the auxiliary road is used instead of the main road, appropriate dummy load must be added to the main road. For details, please refer to the specifications of the corresponding model.
The above common switching power supplies and usage precautions are shared here. Generally speaking, switching power supplies need to pay attention to many things. Only by taking the above matters into consideration 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, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, LCD monitors, LED Lamps, communication equipment, audio-visual products, security monitoring, LED light bags, computer cases, digital products and instruments and other fields.
Post time: Apr-17-2024