The importance of capacitors

Capacitance is mainly used in the motherboards to ensure the stability of voltage and current (from filtering role).Personal computers are now more and more rapidly, with the CPU frequency and system bus frequency of increased supply on the motherboard of the increasingly stringent requirements, so the motherboard is the premise of stability must have a clean supply of current.Out from the chassis power supply if the current observation Oscillographic apparatus will find a lot of rush and clutter, the rush and clutter is the enemy of stability motherboard, the motherboard power supply must be carried out in order to use filtration and purification, for the clutter of different components with different filtering and purification.The main components are Choke coil and a capacitor. First of all, the original current flows through the choke coil (commonly known as coils), because there is a coil-storage properties, which can filter out some of the initial high-frequency noise, and then further into the filter capacitors to clean up, even out (the peak shape into pola square wave).