What are the two types of capacitors What are the types of capacitors

Ceramic capacitors Electrolytic capacitors.

Electrolytic capacitors and chip capacitors.

Classification of capacitors.

1. According to the structure, it is divided into three categories: fixed capacitors, variable capacitors and trimmer capacitors.

2. According to the electrolyte, there are: organic dielectric capacitors, inorganic dielectric capacitors, electrolytic capacitors and air dielectric capacitors.

3. According to the application, it is divided into: high-frequency bypass, low-frequency bypass, filtering, tuning, high-frequency coupling, low-frequency coupling, and small capacitors.

The capacitor has a "DC-blocking" effect on the DC current, which means that after the DC current charges the capacitor, there is no current flowing in the circuit. When the DC power supply is just applied to the capacitor, there is a current flowing in the circuit, and this current is the charging current of the capacitor. This process of current flow will soon come to an end, depending on the magnitude of the resistance and capacitance in the circuit, with the product of the two sizes being the longer the charging time and vice versa.

After charging is complete, the voltage across the capacitor is equal to the DC supply voltage.

In a cycle of alternating current, due to the forward and reverse charging of the capacitor, the direction of the current flowing through the circuit is changed, but due to the repeated charging and discharging of the capacitor, there will always be current passing through the circuit, which is equivalent to the capacitor can let the alternating current pass, which is the "communication" characteristic of the capacitor.

Artificial Intelligence Hardware Basics: How to Read Capacitor Size? What are the types of capacitors?

Capacitors are divided into high-frequency capacitors, low-frequency capacitors and power capacitors, high-frequency capacitors include: magnetic tube capacitors, porcelain capacitors, mica capacitors, semi-adjustable capacitors and adjustable capacitors, low-frequency capacitors, paper dielectric capacitors, polyester capacitors, metallized capacitors, bile capacitors, electrolytic capacitors, etc., power capacitors have oil-impregnated paper dielectric capacitors, and metallized capacitors.

(1) Classification according to the structure and whether the capacitance can be adjusted.

Capacitors can be divided into fixed capacitors and variable capacitors (including trimmer capacitors) according to their structure and whether the capacitance can be adjusted.

2) Classification according to the different materials of the medium.

Capacitors can be divided into organic dielectric capacitors (including paint film capacitors, mixed dielectric capacitors, paper dielectric capacitors, organic film dielectric capacitors, paper film composite dielectric capacitors, etc.), inorganic dielectric capacitors (including ceramic capacitors, mica capacitors, glass film capacitors, glass glaze capacitors, etc.), electrolytic capacitors (including aluminum electrolytic capacitors, tantalum electrolytic capacitors, niobium electrolytic capacitors, titanium electrolytic capacitors and alloy electrolytic capacitors, etc.) and gaseous dielectric capacitors (including air capacitors, vacuum capacitors, and gas-filled capacitors, etc.).

3) Classification according to different functions and uses.

Capacitors can be divided into high-frequency capacitors, low-frequency capacitors, high-voltage capacitors, low-voltage capacitors, coupling capacitors, bypass capacitors, filter capacitors, neutralization capacitors, and tuning capacitors according to their different functions and uses.

4) Classification according to the different package shapes.

Capacitors can be divided into cylindrical capacitors, disc capacitors, tubular capacitors, laminated capacitors, rectangular capacitors, bead capacitors, square capacitors and special-shaped capacitors according to their different package shapes.

5) According to the different classification of the lead-out line.

Capacitors can be divided into axial lead capacitors, radial lead capacitors, co-lead lead capacitors, and leadless (SMD) capacitors according to their lead wires.

Artificial Intelligence Hardware Basics: How to Read Capacitor Size? What are the types of capacitors?