From the circuit, it can always be distinguished as the source of the driving and the load of being driven. The ground bounce is the voltage drop when the ground connection is passed through a large current glitch.ĭecoupling, also known as defamatory. This can well prevent ground potential elevation and noise caused by excessive input values. To minimize impedance, the bypass capacitor should be as close as possible to the power supply and ground pins of the load device. Like a small rechargeable battery, the bypass capacitor can be charged and discharged to the device. The bypass capacitor is an energy storage device that supplies energy to the local device, which equalizes the output of the regulator and reduces the load requirements. The following categories are described in detail: It is applied to the power supply circuit to realize the functions of bypass, decoupling, filtering and energy storage.
Since capacitors are one of the most widely used electronic components in electronic devices, they are widely used in blocking, coupling, bypassing, filtering, tuning loops, energy conversion, control circuits and so on.Īs one of the passive components, capacitors have the following functions: The stored electric charge amount is called capacitance. When there is a medium between the conductors, the electric charge is hindered and the electric charge accumulates on the conductor, causing the accumulated storage of the electric charge. Generally speaking, the electric charge moves in the electric field. Ⅸ X, Y Safety Capacitor at the Input of the Power SupplyĬapacitance, also known as "capacity", refers to the amount of charge stored at a given potential difference, denoted as C, and the international unit is Farad (F).
Ⅶ Electrical Parameters of Electrolytic Capacitors
Ⅳ Classification According to the Dielectric Constant of the DielectricĦ.3 Equivalent Series Resistance ESR of Capacitor