To summarize the use of dcdc power modules for you!

In modern society, we can see in many industriesdcdc power moduleThe application, such as some post and telecommunications equipment, base station power supply systems, industrial automation and well-controlled aviation, can be said to be widely used. But for the use of power modules, there are still some things to say here, so I summarized some:

1. Because the dcdc power supply module is mainly completed by switching the oscillator circuit, it will also produce some disturbance. Therefore, in places where the demand for ripple noise is relatively high, an external filter network can be used at the output of the power supply module to reduce the power supply ripple. Wave noise.

2. The general power module does not support hot swap function, hot swap will cause high voltage spikes, which may cause long-term damage to the power product

3. In order to ensure that the module power supply can work reliably for a long time, it is necessary to avoid the module when using it with no load or light load, otherwise the unstable output voltage will affect the circuit operation.

4. Many projects will require multiple isolation voltages, and multiple output power supplies are a good choice. However, in general, multiple output power supplies have load regulation. If the output load does not match, it will lead to poor voltage output accuracy or unstable output. Generally, the ratio of the main circuit load and the auxiliary circuit load is better matched.

5. There are many reasons for using power modules, mostly to achieve the isolation effect of the power supply. In the actual requirements, you can choose power supplies of different specifications according to different isolation requirements.

6. The external capacitors C2 and C3 of the dcdc power module use low-resistance tantalum capacitors. The recommended capacitance value is 0.47uF. To avoid excessive capacitance values, to avoid damaging the module due to excessive capacitance that may cause instantaneous overcurrent.

7. Since most power modules have no current sharing function, some people choose parallel power supplies in order to increase the output power. In fact, this is a useless practice, and we do not recommend this.

8. Under normal circumstances, the power module will have a corresponding wide voltage input range, but it should be noted that the input voltage should not exceed the maximum input voltage set by the module power supply, otherwise it will easily cause long-term damage to the power supply. And what we should do more is to add a nun's protection circuit at the input.

The advantages of dcdc power modules should be reflected in their small size, high conversion efficiency, and better stability. The switching power supply can achieve greater power, and the cost of the switching power supply will be relatively small, but the volume is relatively large, the conversion efficiency is low, and the stability is not as high as the power module. For more details about the power module, please pay attention to this website!