Factors to consider when selecting power module products:
- Rated power
It is generally recommended to use 30-80% of the rated power of the module power supply.
- Working frequency
The higher the operating frequency, the smaller the output ripple noise, but the higher the requirements for component materials, so the higher the efficiency, the more expensive the price.
- Power loss and efficiency
Under certain output power conditions, the smaller the module loss, the higher the efficiency, the lower the temperature rise, and the longer the lifespan.
- Packaging form
Under certain power conditions, the volume should be kept as small as possible to ensure system safety, reliability, and scalability.
- Temperature range
Generally, there are: commodity grade, industrial grade, and military grade selection, considering the actual required working temperature range, from which to choose. The materials and processes used for different temperature grades are different, and the prices of different grades vary greatly.
- Isolation voltage
A high isolation voltage can ensure smaller leakage current, higher safety, reliability, and EMC characteristics of the power module.
- Stability and reliability
In the product, it is necessary to consider whether the product is good in harsh environments or extreme situations.