The power module is the switching power supply transformation equipment in the semiconductor industry. It has the advantages of modularization, waterproof, anti-vibration and credibility. It is used in power engineering, industrial control, instrument equipment, medical electronics, urban rail, communication, intelligent security, military management system and other industries. So how do people choose the right power module?

1. Maximum power

It is generally proposed that the applied output power be 40~90% of the rated power of the control module power supply.

2. Output power

Generally, the higher the output power, the less output ripple noise, but the more requirements on the raw materials of electronic devices are higher, so the higher the efficiency, the higher the cost.

3. Output power loss and high efficiency

Normally, under the standard of power, the lower the loss of the control module, the higher the efficiency, the lower the leakage current and the longer the service life.

4. Encapsulation type

The volume shall be as small as possible under the standard of necessary output power to ensure the reliability and maintainability of the system.

5. Temperature category

There are usually: product grade, industrial use, police grade, considering the operation temperature category is actually necessary, select from the article, different temperature grade commonly used to raw materials and processing technology is not the same, the price of different grades is very wide.

6. Protect working voltage

High protection voltage ensures smaller leakage current, higher safety factor, credibility, EMC characteristics.

7. Smooth credibility

You have to take into account whether the product is good in extreme natural conditions or in extreme extremes.