source:Industry News Popular:adapter release time:2022-03-09 10:56:16 Article author:sznbone
The circuits in the power adapter are intricate, of which electronic components, circuit structure, basic working principles, etc. are the most basic knowledge. Do you know the little tricks of power adapter detection?
1. Buy an authentic adapter from a famous brand and weigh it with your hands. Generally, a good adapter will be heavier because there are more protection circuits.
2. Check whether the power adapter is in good contact by gently shaking the power connector or battery. If it is not normal, try to reinstall the power adapter. A possible problem situation is that the power connector is deformed.
3. Static observation.
Observe the distribution of components in the circuit, identify the characteristic components, and determine the key detection points during maintenance through observation. Sometimes, some obviously damaged components can be found for the faulty power supply, so as to lay a good foundation for repairing as soon as possible.
Fourth, measure the resistance.
For the circuit connections that are not easy to see, use the resistance measurement method to figure out its connection and direction, and then figure out the circuit structure, and at the same time master the ground resistance value of some key points to provide reference data for future maintenance.
5. Measure the voltage.
In the case of power-on, measure the voltage of some key points and master the first-hand information of maintenance. The method of voltage measurement is: the pointer multimeter uses the DC voltage gear (which gear is selected according to the specific object value) black test lead Ground, the red test lead is connected to the test point. The digital multimeter uses a DC voltage gear, the black mark is grounded, and the red meter is connected to the test point.
The above is a little trick for power adapter detection, I hope it can help everyone.
Read recommendations:
36-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
Transformer，High Frequency Transformer，Frequency Transformer
19V2A 36W Switching Power Supply
What are the precautions for using the power adapter?
What are the differences between ordinary transformers and isolation transformers
Popular recommended products
200-500W Switching Power Supply
2020-08-2924-65W Switching Power Supply
2020-08-2912V2ASwitching Power Supply
2020-08-28MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li
2020-08-28EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-28EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28ER42 High Frequency Transformer
2020-08-2712-36W POE POWER SUPPLY
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-27Transformer，High Frequency Transformer，Frequency Transformer
2020-08-2712-24W Medical Switching Power Supply
2020-08-273-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply
2020-08-2745W PD Charger,45W Charger,PD Charger
2020-08-2736-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-2724W USB Charger,24W Charger,USB Charger
2020-08-2724W 2USB Charger,24W Charger ,2USB Charger
2020-08-2710-24W Charger,24W Charger,10W Charger
2020-08-2730-500W LED Power Supply 30-500W Power Supply
2020-08-27Related Information
What are the unique advantages of high frequency switching power adapter
2022-04-20General Mechanism Analysis of Switching Power Adapter.ac power adapter wholesaler
2022-04-19Suppression method of low frequency ripple of switching power supply
2022-04-16Why is the power adapter making noise?
2022-04-15When the power adapter is in normal use, what is the normal temperature?
2022-04-1490% of people use the car charger incorrectly, are you using it right?CAR POWER SUPPLY sales
2022-04-13The difference between a power adapter and a voltage regulator
2022-04-12Select the power adapter to determine these three adaptation conditions.SWITCHING POWER Vendor
2022-04-11Why is the original power adapter better than the non-original one?TRANSFORMER Production
2022-04-09What are the industries where the power adapter can be applied?CAR CHARGER wholesale
2022-04-08What is the difference between high-end and low-end power adapters? How to check after playing,CAR P
2022-04-07How to design a good power adapter,CAR CHARGER wholesaler
2022-04-07Customized desktop power adapter
2022-04-06The quality of the switching power supply determines the safety of electricity use,CAR CHARGER whole
2022-04-02What are the advantages of wireless chargers?
2022-03-30PD charger is a must-have at home
2022-03-29What are the main materials of the power adapter shell?
2022-03-26What is a PD power adapter? It can make charging ubiquitous
2022-03-25Slow charging? Try a fast charger
2022-03-24Do you understand the cause of abnormal noise in the power adapter?
2022-03-23Reasons for abnormal noise of the power adapter
2022-03-22Talking about the common problems of the power adapter
2022-03-19General manufacturer power adapter reliability test items
2022-03-18More energy efficient and safe power adapter
2022-03-17Five ways to solve the power adapter overheating?
2022-03-16What are the common connection faults of cottage shared chargers on the market?
2022-03-15How to use the car charger and matters needing attention!
2022-03-14Do you know the difference between a power adapter and a charger,CAR CHARGER Processor
2022-03-12The power adapter has a very wide range of applications,Audio Transformer
2022-03-11What is the development trend of the power adapter industry,AC ADAPTER
2022-03-10Popular recommended products
12VDC8A 96W power supply
2020-08-28100-300W Charger,100W Charger,200W Charger,300W Charger
2020-08-27MKS-1202000-36 Switching Power Supply
2020-08-29200-500W Switching Power Supply
2020-08-2912W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER
2020-08-27MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-2812W 2USB Charger,2USB Charger,12W Charger,USB Charger
2020-08-2736-65W Switching Power Supply
2020-08-29EI Power Transformer Power Transformer
2020-08-2760W 6USB Charger,60W Charger,6USB Charger,Charger
2020-08-2712V2ASwitching Power Supply
2020-08-28EI-28 AC ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter Linear Adapter
2020-08-2812W POWER SUPPLY,12W CAR POWER SUPPLY,POWER SUPPLY,CAR POWER SUPPLY
2020-08-27MKS-120200EU-36 Switching Power Supply
2020-08-29500W Charger,Charger
2020-08-2824V21A LED Power Supply 24V Power Supply 21A Power Supply
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-2712-36W POE POWER SUPPLY
2020-08-27MKS-1203000EX Switching Power Supply
2020-08-29MKS-1201250HEU Switching Power Supply
2020-08-29EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-2824V1.5A 36W Switching Power Supply
2020-08-29EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li
2020-08-28MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28MKS-1401700H Switching Power Supply
2020-08-2972-200W Switching Power Supply
2020-08-2945W PD Charger,45W Charger,PD Charger
2020-08-273-100W PCBA power supply 3-100W Customized power supply 3-100W power supply
2020-08-2718-25W Switching Power Supply
2020-08-28