Detailed explanation of the basic knowledge of parasitic capacitors 2

1、 Causes of parasitic capacitors:

1. Dielectric between circuit boards or wires: When there is a certain insulating medium between two wires or conductors, a capacitive effect will be formed.diode

2. Improper circuit layout: For example, excessively long wires, bent wiring, and overly dense arrangement of components can all lead to an increase in capacitance effect.

3. Capacitive effects between components: For example, capacitive effects can occur between the pins of transistors, BC847BVN resistors, inductors, and other components with ground or other components.diode

2、 The impact of parasitic capacitance:

1. Frequency response: Due to the presence of parasitic capacitance, the frequency response of the circuit may change.

2. Signal transmission distortion: In high-frequency or high-speed digital circuits, parasitic capacitance can cause signal transmission distortion, affecting the stability and reliability of the circuit.diode

3. Operating frequency limitation: The presence of parasitic capacitance may limit the operating frequency range of the circuit and affect its performance.diode

4. Signal interference: Parasitic capacitance may cause mutual interference between signals, affecting the normal operation of the system.