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The concept of most module power capacity is still at the stage of ideal module power capacity. As usual, the power supply capacity of the module is C. However, I don't know that there are still many tight parameters in the module power supply capacitance value, and I don't know the difference between the 1UF ceramic module power supply capacitance value and the 1UF aluminum module power supply capacitance value. The power supply capacity of the actual module can be equivalent to the power supply circuit of the following module:

C: Module power supply capacity value. It also refers to the equivalent AC module power voltage of 1kW and 1V, and the DC bias voltage is 0V, but there can also be many modules where the power capacity measurement environment is different. But one thing needs to be careful, the power capacity C of the module itself will change with environmental changes.

ESL: The power supply capacity of the module is equivalent to the power sense of the series module. There is a feeling of module power supply in the pins of module power supply capacity. In low frequency applications, the inductance is small and cannot be considered. When the frequency is high, the power sense of the module needs to be considered. For example, a 0805 packaged 0.1UF patch module power supply capacity, each pin module power sensor 1.2NH, the ESL is 2.4NH, we can calculate the resonance frequency of C and ESL is about 10MHz, when the frequency is greater than 10 MHz , The module power supply capacity value is characterized by the module power sensor.

ESR: Module power capacity equivalent series module power resistance. No matter which kind of module power supply capacitance has an equivalent series module power resistance, when the module power supply capacitance works at the resonance frequency, the capacity of the module power supply capacity and inductance are proportional, so it is equivalent to the power supply resistance of the module. The power resistance of the module is ESR. Because the power supply capacity structure of the module is different, there is a big difference. The power supply capacity of the aluminum module power release module ESR is hundreds to several euros, and the power supply capacity of the ceramic module is tens of milligrams. The power supply capacity of the tantalum module is between the power supply capacity of the aluminum module and the power supply capacity of the ceramic module.