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:
72-200W Switching Power Supply
19V2A 36W Switching Power Supply
MKS-1202000-36 Switching Power Supply
What is the development trend of the power adapter industry,AC ADAPTER
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 conditions of use and maintenance methods for switching power supplies?
2022-05-21Some Frequently Asked Questions about Power Adapters
2022-05-20How to deal with the electromagnetic interference of switching power supply which is difficult in EM
2022-05-19Six situations and solutions that cause the whistling of switching power supplies.power supply price
2022-05-18Lightning Surge Test Method for Switching Power Adapters.adapter factory
2022-05-17Two common power adapter output overload protection methods.ADAPTOR price
2022-05-16Common fault maintenance skills of switching power supply
2022-05-14How should we choose the charger?
2022-05-13Power adapter expertise.CE ADAPTOR
2022-05-12How to solve the high temperature rise of switching power supply transformer?
2022-05-11The role of varistor in switching power supply
2022-05-10Structural characteristics and working principle of varistor
2022-05-09The role of varistor in switching power supply
2022-05-09What are the main components of switching power supply
2022-05-07Two ways for MOS devices to dissipate in high-power power supplies,CE ADAPTOR Processing
2022-05-06Several common insulation protection technologies for power adapters
2022-05-05What are the unique advantages of high frequency switching power adapter
2022-04-27What are the main components of switching power supply.China cnc plastic cutting
2022-04-26Troubleshooting method of switching power supply,CE ADAPTOR wholesale
2022-04-25How to use the power adapter correctly
2022-04-23What is the comparison between a charger and an adapter?
2022-04-23The optimal solution of drone power management solution!
2022-04-22Several common insulation protection technologies for power adapters
2022-04-21What 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
2022-04-12Popular recommended products
24W USB Charger,24W Charger,USB Charger
2020-08-27100-300W Charger,100W Charger,200W Charger,300W Charger
2020-08-2724-65W Medical Switching Power Supply
2020-08-27MKS-1401700H Switching Power Supply
2020-08-2919V2A 36W Switching Power Supply
2020-08-2810-24W Charger,24W Charger,10W Charger
2020-08-27EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-2836-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-273-15W Switching Power Supply
2020-08-28ER42 High Frequency Transformer
2020-08-27Transformer，High Frequency Transformer，Frequency Transformer
2020-08-27MKS-1203000EX Switching Power Supply
2020-08-29MKS-120200BS-36 Switching Power Supply
2020-08-29EI Power Transformer Power Transformer
2020-08-2712VDC8A 96W power supply
2020-08-2830W PD Charger,30W Charger,PD Charger
2020-08-273-8W Charger,3W Charger,8W Charger,4W Charger,5W Charger,6W Charger,7W Charger
2020-08-2772-200W Switching Power Supply
2020-08-29MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-2845W PD Charger,45W Charger,PD Charger
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-27500W Charger,Charger
2020-08-28MKS-1202000-36 Switching Power Supply
2020-08-29EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-2824V21A LED Power Supply 24V Power Supply 21A Power Supply
2020-08-27MK-C1806028 MKA ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-2812W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER
2020-08-27200-500W Switching Power Supply
2020-08-2912-36W POE POWER SUPPLY
2020-08-27QC3.0 24W USB Charger,24W USB Charger,24W USB Charger,USB Charger
2020-08-27