source:power supply Popular:adapter release time:2021-09-18 10:11:48 Article author:sznbone
What are the advantages and disadvantages of switching power supply?
Advantages and disadvantages of switching power supply!
The advantages of switching power supply: It is convenient to use high-power power supply for centralized power supply, and it shows a better cost performance when the prices of raw materials and other materials continue to rise. It is small in size and light in weight, and there are many brands and models to choose from.
Disadvantages of switching power supply: If the quality of the power supply is not good, the high frequency ripple is not easy to control, for some access controllers with poor anti-interference ability, it is easy to cause the access controller to crash and cause the door to fail to open.
When choosing a filter, pay attention to the following points:
1. Identify the working frequency and the interference frequency to be suppressed. If the two are very close, a filter with very steep frequency characteristics is needed to separate the two frequencies.
2. Ensure that the filter can work reliably under high voltage conditions.
3. When the filter is continuously passed the maximum rated current, its temperature rise should be low to ensure that the working performance of the components in the filter will not be damaged when the rated current is continuously operated.
4. In order to make the frequency characteristics of the filter at work conform to the design value, it is required that the value of the signal source impedance and load impedance connected to it be equal to the specified value during design.
5. The filter has a shielding structure. The shielding box cover and the body should have good electrical contact. The capacitor lead of the filter should be as short as possible. Use short lead and low inductance through-core capacitors.
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