News

Home  -  News  -  Industry News

How to choose proper power adapter?

source:Industry News Popular:adapter release time:2021-06-23 10:52:54 Article author:sznbone

How to choose proper power adapter?For some people, the concept of power adapter is still charger, indeed the power adapter is a transformer, is used widely on charger. For those not familiar with power adapter, charge with what kind of adapter is a problem.

Considering there are a great diversity of power adapter, to charge randomly is not possible. We have to decide 3 adaptive conditions before choosing a proper power adapter.

How to choose proper power adapter?(图1)

Firstly, DC jack of the adapter must compliance with the equipment.

Secondly, output voltage of adapter should be same as the rated input voltage or within the voltage range of the equipment, otherwise, it perhaps burns the equipment.

Thirdly, output current of adapter should equal to or bigger than the current of the equipment, so to provide enough electric power.

Let’s analyze the above 3 adaptive conditions:

Firstly, do not insert with unmatched DC jack, for this may be dangerous.

Secondly, why need the matched voltage? Principally, a low voltage can not drive the load, so the battery can not charge normally. Commonly speak is demand exceeds supply.

Thirdly, why need the matched current? This relates to the principle of current. We all know that there is internal resistance of power supply, the more internal resistance, the much wastage. Therefore, while producing the adapter, the manufacturer will ensure the no load output voltage within a certain range according to internal resistance. The current critical value which voltage critical value corresponds to is current nominal value, the bigger current nominal value, the better load capacity. Choosing bigger current will not harm the battery, instead, it will charge faster.

This article describes how to choose the power adapter based on own demand, and provides 3 choosing conditions which easier understand. Then explains the 3 conditions respectively, very useful reading for a new hand. Hope this article helps a lot, and we will bring more basic knowledge in future.


Read recommendations:

6W adapter

4.2v 0.8a power adapter AC 90v-264v input to DC 4.2 12V class 2 wall amount switching power supply

60W bare board power supply

How to choose the right power adapter for you?

Talking about the production technology of power adapter.power adapter sales

Previous:Power adapter forced current sharing and remote sampling Back to list Next:Commonly used offline power adapter functions and basic requirements

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