Why choose DC-DC power module
Author： Zhongyiguang .Ltd release time：2021-01-22 11:57:45CTR：
With the development of The Times, electronic products are more and more developed, most electronic products will choose DC-DC power module to process the signal, the electronic products choose DC-DC power module, today let us understand it.
1, the use of mature power supply topology
The design of the power module is based on the mature power topology. These topologies have been tested over time and are mature and reliable.
2, high efficiency within the full load range
High efficiency means lower power loss and lower temperature rise, which can effectively improve reliability. In practical applications, the power supply will choose a certain degree of downscaling design, especially in today's load IC power consumption is getting lower and lower, most of the time the power supply may work under light load conditions. Therefore, high efficiency over the entire load range is a key parameter for power system reliability, but it is often overlooked by power supply manufacturers.
3, limit temperature characteristics
The geographical area where the power module is applied is very wide and may have tropical climate and cold weather similar to Russian winter. Therefore, the minimum operating temperature range of DC-DC module is required to be -40 degrees to 85 degrees. The final temperature test is the most reliable way to verify this. The reliability of the power module, such as high temperature aging, high temperature and low temperature live operation performance test, high temperature and low temperature cycle impact test and long time high temperature and high humidity test, therefore, whether this test equipment has become the basis of judging whether the power manufacturer is a copycat manufacturer.
4, high isolation, low isolation capacitance
Medical products require extremely low leakage currents, while power electronics require as little parasitic capacitance as possible between primary and secondary. Both industries generally require the highest possible isolation voltage withstand and the lowest possible isolation capacitance to reduce the impact of common-mode interference on the system. For medical or power electronics applications, 1-2W DC-DCs are recommended to use a power module with an isolation capacitor less than 10pF, and a wide voltage product with a power module less than 150pF.
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