News

Home  -  News  -  Industry News

A Capacitor Real Matters for Swiching Power Supply

source:Industry News Popular:adapter release time:2021-05-27 13:32:02 Article author:sznbone

As one of the most common used components of switching power supply, capacitor can reduce the ripple noise, enhance the reliability and transient response of power supply. However, since there are variety of capacitors in the market, how to make a wise choice is a problem.

A Capacitor Real Matters for Swiching Power Supply(图1)

1. Type of capacitors

While chip capacitor, plug-in capacitor based on packaging, there are ceramic capacitor, electrolytic capacitor, mica capacitor according to medium. And owing to the different structure, there are fixed capacitor, half-fixed capacitor and bariable capacitor.

People are easily suffered from choice difficulty syndrome when face so many choices, but no need to trouble. Only ceramic capacitor, electrolytic capacitor and tantalum capacitor are widely used on switching power supply. Let’s have a look to the performance parameter of capacitor.

2. Key parameter of capacitor

Only know better on the internal key parameter of capacitor that can make a wise choice. Key parameter is the same for almost all capacitors, which includes value, withstand voltage, ESR, value accuracy, the allowable working temperature range.

3. Perfomance of capacitor matters the capacitor selection for power supply.

Ceramic capacitor, electrolytic capacitor and tantalum capacitor are widely used on switching power supply design.

Ceramic capacitor: Less value, better high frequency, wider working temperature, ESP less than electrolytic capacitor, with small size.

Electrolytic capacitor: value can be big, narrow working temperature range, bigger ESR, heteropolarity.

Tantalum capacitor: Least ESR, value bigger than ceramic capacitor, heteropolarity, poor safety, easy on fire.

4. Working environment of capacitor

There are circuit internal and external environments, which internal environment includes frequency, voltage and current value, the main function a capacitor plays in circuit. Capacitor type can be decided based on circuit frequency, and voltage value according to withstanding voltage, and the capacitor value can be referred according to the main function of circuit.

External environment, working environment and safety requirement all can narrow the choice range of capacitor selection.


Read recommendations:

24W Chinese standard

24W Thai standard

18W European standard Power Adapter

Development prospects of shared power banks!wall charger Manufacturing

BIS battery cell certification regulations update

Previous:Have you ever seen a power adapter that does not invade water or fire? Back to list Next:What is the principle of mobile phone wireless charger

The latest article

Related Products

The latest article

What are the types of mobile phone chargers and their functions?

2022-05-21

Advantages of switching power adapters

2022-05-21

Five core functions that the power adapter can achieve.adapter manufacture

2022-05-20

Analysis of the importance of power adapters for notebooks.adapter Processor

2022-05-20

Details of switching power supply in maintenance

2022-05-19

Understand the precautions of the power adapter and be an expert in electricity safety

2022-05-19

This is how the EMC interference of the switching power supply is generated.adapter wholesaler

2022-05-18

The relationship between the nominal voltage and current of the power adapter.power adapter price

2022-05-18

Five basic functions of notebook power adapters.adapter wholesaler

2022-05-17

Lightning surge immunity test method.power adapter price

2022-05-17

Switching power supply ripple source and control

2022-05-16

Level 6 energy efficiency standard power adapter T series

2022-05-16

Children sleeping with pacifiers are prone to tooth decay

2022-05-16

Six methods to deal with the heating problem of switching power supply transformer

2022-05-14

The principle of flyback switching power supply

2022-05-14

Types of thermal protection for power adapters.adjustable power adapter

2022-05-13

Summary of common faults of LED switching power supply

2022-05-13

The power transistor should be used like this in the power adapter

2022-05-12

4 modulation methods of switching power supply

2022-05-12

Some little knowledge about switching power supply

2022-05-11

Laptop Power Adapter Troubleshooting Steps

2022-05-11

9 classification methods of switching power supply

2022-05-10

Advantages and disadvantages of switching power supply current mode

2022-05-10

Advantages and disadvantages of switching power supply current mode

2022-05-09

9 classification methods of switching power supply

2022-05-09

Characteristics and working methods of PFC regulated switching power supply

2022-05-07

Six maintenance rules for drone lithium batteries.manual charger power adapter

2022-05-07

Reasons for Inrush Current in Switching Power Supply Design.adjustable power adapter

2022-05-06

The optimal solution of drone power management solution!12w acdc power adapter

2022-05-06

Characteristics of Switching Power Adapter Transient Loads

2022-05-05