home > News > power adapter

Fault detection steps of the power adapter!

source:power adapter     Popular:adapter     release time:2021-07-17 09:54:22     Article author:sznbone    

  The power adapter is a small and medium-sized electronic product that is easy to carry in daily life. This kind of machinery and equipment shows the same main parameters for products that must be charged by the battery. The transformer and its inverter circuit are formed, and the power adapter has two output methods. Generally speaking, it means the method of communicating AC output and DC output. Naturally, there will be different interface methods when there are different output releases. , Generally there will be plug-in wall and desktop type.

Fault detection steps of the power adapter!(图1)

  The types of power adapters can be roughly divided into two types:

  1. A simple transformer, some of which have the function of a voltage regulator tube, and the output is communication. This home appliance has an inverter circuit inside.

  2. Transformation regulator tube plus rectifier, the output is direct current. Such household appliances do not have an inverter circuit. Do not use one type of power adapter. Regarding the basic principles, it is nothing more than the two types of transformers and power switching power supplies. Naturally, it is also super cost-effective for capacitor divider circuits.

  Classified according to the interface: it can be divided into desktop type and plug-in wall; according to the type of output current: it can be divided into communication AC output type and DC output type. The general supporting facilities are in machines and equipment such as laptops, electronic computers, mobile phones, and home-installed IT machines and equipment.

  Power adapter failure test process

  First, you can check whether the power adapter or laptop battery is in good contact by flicking the power connector or battery. If it is abnormal, try to reinstall the power adapter or battery. Common fault conditions that will occur are deformation of the power connector or reduced ductility of the battery contact point.

  If the power supply or battery connector is good, you can use a digital multimeter to measure the output voltage of the power adapter or battery. The key is to check whether the output voltage is stable and whether the specific output voltage value is consistent with the power supply tolerance voltage. If the output is not stable or specific If the output voltage is too different from the product tolerance, the damaged power adapter or battery needs to be replaced.

  If the laptop power board, power adapter, and battery are all in good contact, then use the common disassembly and replacement methods to check whether the laptop power board is normal. If it is abnormal, it can be removed or repaired.

  If the inspection process shows that everything is normal, the notebook case must be opened at this time to check whether the power board and the motherboard are in good contact. If the power board and the motherboard are in good contact, it can be inferred that the common fault is on the notebook computer motherboard.

  If it is determined that the power board, main board, power adapter and battery are all normal, and other key components can be presumed to be damaged (common failures of the above power supply circuit), the key components should be replaced or repaired.


Read recommendations:

MKS-1201250HEU Switching Power Supply

36-65W Switching Power Supply

EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter

Power adapter CE certification.power supply adapter company

Quality issues must be considered when power adapters

Related Information

What is the structure of the notebook power adapter?LINEAR ADAPTOR

2022-02-15

What is a power adapter?Linear Power Adapter

2022-02-15

Power adapter characteristics

2021-12-17

How to choose the right power adapter for yourself?

2021-12-17

R & D and production of more types of power adapters.power adapter Manufacturing

2021-12-07

Power adapter CE certification.power supply adapter company

2021-12-03

The main purpose and function of the power adapter.indian adapter Manufacturing

2021-12-03

The difference between power adapter.dc power adapter wholesaler

2021-12-02

Application of high frequency power adapter.dc power adapter wholesaler

2021-12-02

Principle of switching power supply.india plug charger Merchant

2021-11-30

Understand the cause of low output voltage caused by power adapter.ac power adapters Production

2021-11-30

Is the power adapter a switching power supply?ac power adapters Production

2021-11-27

What are the common insulation shielding technologies for power adapters?ac power adapters Productio

2021-11-27

9V power adapter price.india plug charger Merchant

2021-11-26

power adapter customization.ac power adapter wholesaler

2021-11-26

U.S. power adapter manufacturers.india plug charger Merchant

2021-11-25

Power adapter customization.indian amplifier wholesaler

2021-11-25

9V power adapter.wall charger Factory

2021-11-24

Switching power adapter manufacturer customization.adapter manufacturer

2021-11-23

U.S. power adapter.adapter manufacturer

2021-11-23

Quality issues must be considered when power adapters

2021-11-20

usb power adapter.power supply factory

2021-11-20

US standard power adapter wholesale customization.adapter manufacturer

2021-11-19

Which switching power adapter is better.CE ADAPTOR wholesale

2021-11-19

Which computer power adapter is of good quality.ac power adapter Processor

2021-11-18

How to choose the right power adapter for yourself?ac power adapter Processor

2021-11-18

Switching power adapter customization.AC ADAPTER wholesale

2021-11-17

Which is the best standard power adapter?CE ADAPTOR Production

2021-11-17

How to choose the right power adapter for yourself?

2021-11-16

24V power adapter wholesale customization.LINEAR ADAPTOR sales

2021-11-16

Popular recommended products

EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li

2020-08-28

Transformer,High Frequency Transformer,Frequency Transformer

2020-08-27

60W 6USB Charger,60W Charger,6USB Charger,Charger

2020-08-27

24W USB Charger,24W Charger,USB Charger

2020-08-27

24-65W Switching Power Supply

2020-08-29

QC3.0 24W USB Charger,24W USB Charger,24W USB Charger,USB Charger

2020-08-27

12W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER

2020-08-27

MKS-1201250HEU Switching Power Supply

2020-08-29

30W PD Charger,30W Charger,PD Charger

2020-08-27

24-65W Medical Switching Power Supply

2020-08-27

EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter

2020-08-28

Inductance & Coil

2020-08-27

10-24W Charger,24W Charger,10W Charger

2020-08-27

MKS-120200BS-36 Switching Power Supply

2020-08-29

40W 4USB Charger,40W Charger,4USB Charger

2020-08-27

3-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply

2020-08-27

72-200W Switching Power Supply

2020-08-29

MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter

2020-08-28

EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter

2020-08-28

MKS-120200EU-36 Switching Power Supply

2020-08-29

EI-28 AC ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter Linear Adapter

2020-08-28

MK-C1806028 MKA ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter

2020-08-28

12-24W Medical Switching Power Supply

2020-08-27

MKS-1202000-36 Switching Power Supply

2020-08-29

18-25W Switching Power Supply

2020-08-28

24V21A LED Power Supply 24V Power Supply 21A Power Supply

2020-08-27

EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter

2020-08-28

19V2A 36W Switching Power Supply

2020-08-28

3-8W Charger,3W Charger,8W Charger,4W Charger,5W Charger,6W Charger,7W Charger

2020-08-27

MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter

2020-08-28
Copyright 2020 © Merryking Technology Co., Ltd. All rights reserved