The function of electrolytic capacitor is: filtering, decoupling, energy storage, isolated direct current exchange, etc. It has different uses in different circuits. The choice of capacitor material and capacity is also different for different purposes, and the electric vehicle battery parallel electrolytic capacitor plays the role of energy storage.
It can be used in automobile refitting.
For example, when changing the sound system and installing high-power power amplifier, large capacity electrolytic capacitor can be used. Generally installed near the power amplifier, it can meet the requirements of the current when the sound burst, making the transient response more timely. This capacitor acts as a big pond. Usually, the generator charges the capacitor and the capacitor will store electricity. The generator is like a small displacement water pump to pump water, and the power amplifier is equivalent to a large displacement water wheel when it is in a big dynamic state. Therefore, when the power amplifier is in large dynamic state, the water supply of the pump will be insufficient. At this time, the capacitance is equivalent to a large pool. When the power amplifier is in large dynamic state, the reservoir will be opened to discharge water to meet the instantaneous dynamic demand of the power amplifier.
This capacitor is equivalent to the power stored at ordinary times and can be fully discharged when necessary. This is peak cutting and valley filling. The capacitance should be large enough, basically 1-2 farads (1000000-2000000 μ f).
