Computer motherboard resistance, capacitance

Last Update Time: 2018-12-08 11:11:23


First, the role of capacitors:

Filtering effect: In the power supply circuit, the rectifier circuit turns the alternating current into a pulsating direct current, and after the rectifier circuit is connected to a larger capacity electrolytic capacitor, the charging and discharging characteristics are used to make the rectified pulsating DC voltage become relatively stable DC voltage.

 

Coupling: In the process of transmission and amplification of low-frequency signals, in order to prevent the static working points of the two-stage circuit from interacting with each other, capacitor coupling is often used. In order to prevent the loss of the low frequency component of the signal in the signal, the electrolytic capacitor with a large capacity is generally used.

 

Second, the role of resistor:

The resistance is the magnitude of the conductor's resistance to current, and the sign is "R". A variable resistor can usually be connected in series in the circuit by ensuring that the current of the appliance does not exceed the rated value or the required value for actual operation to ensure proper operation of the appliance. When the size of this resistor is changed, the magnitude of the current also changes. This type of resistor that limits the current is called current limiting.

If you want to know more, our website has a product specification for capacitors and resistors, you can go to ALLICDATA ELECTRONICS LIMITED to get more information