Common switching power supplies need attention in engineering design

Common switching power supplies need attention in engineering design

In today’s highly developed science and technology, all kinds of high-tech appear in our life and bring convenience to our life, so do you know the switching power supply that these high-tech may contain?

In today’s highly developed science and technology, all kinds of high-tech appear in our life and bring convenience to our life, so do you know the switching power supply that these high-tech may contain?

When we design the switching power supply, we need to pay special attention not to let the circuit have problems. So, what should be paid attention to when designing a switching power supply? I think the following five aspects should be paid special attention.

Common switching power supplies need attention in engineering design

1. Wiring

The design requirements of wiring are very strict in the design of switching power supply, and it is necessary to do a good job in order to pass the test. If the designer does not handle the wiring work in the early stage of the design, then there will be a great safety hazard in the future electricity consumption. Therefore, I suggest that everyone pay attention to the actual situation of the cable when purchasing a switching power supply to prevent irreparable damage.

Determine your power supply wattage and input Voltage. The switching current of the switch tube, the volume of the transformer, and the input voltage are selected by the power supply to determine the withstand voltage of the switch tube and the number of input turns of the transformer.

2. Element layout

The design of components is also very important. When designing, you must follow the principles of physical design, and do not change the position of components based on your own ideas to prevent short-circuit accidents. In addition, designers should also check the quality of the products themselves when purchasing components.

It is necessary to select the appropriate switching frequency to ensure the minimum static loss and the highest conversion efficiency of the field tube.

3. Parameters

In the design of switching power supply, we must understand every structural detail in it, especially the parameters, so that we can give specific instructions for future use. The detailed parameters are also convenient for the later testing of the switching power supply, which will also save a part of the time.

No matter what kind of voltage, power supply, low-pass discharge and fast-charging circuits are required for the field tube.

4. Check

After designing each switching power supply, it must undergo strict inspection before production. Only through inspection can the availability and applicability of the switching power supply be determined, so as to price the switching power supply. When checking, first start with the circuit, detect the real working environment of the switching power supply, what kind of environment is the most suitable for working and running, and avoid circuit accidents in certain environments. Safety is our first concern, so we need to Double check the switching power supply.

The transformer must have an absorption circuit to absorb the harmonics.

5. Choose the right power

In order to make the life of the switching power supply longer, I recommend choosing a model with a 30% output power rating. If the system needs a 100W power supply, it is recommended to choose a model with an output power rating greater than 140W, and so on to effectively improve the life of the power supply.

The internal resistance of the field tube grid should be pulled down with a resistor to ground.

In today’s highly developed science and technology, all kinds of high-tech appear in our life and bring convenience to our life, so do you know the switching power supply that these high-tech may contain?

The Links:   NL8060BC31-41D B141XG09-V0

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