source:power adapter Popular:adapter release time:2021-07-19 10:39:49 Article author:sznbone
The power adapter in my home is often burned out during charging. At first, I thought it was because the quality of the power adapter was not good, but I finally checked it and it was not. So what is the reason?
The first type: the output voltage is too high
There will be problems with excessively high output voltage, which generally all come from the voltage regulator tube sampling and the voltage regulator tube control loop. In the closed and closed control loop composed of power circuits such as direct current output, photocoupler, switching power supply control integrated ic, etc., problems in all of the parts are caused by the rise of the output voltage.
Type 2: Common faults of the route
The common faults of the route are very well understood, that is to say, the charger wire will be disconnected from the power supply or damaged. This problem can be solved by removing the cable.
The third type: commercial insurance burned out or destroyed
The key to check the positions of the rectifier bridge, diodes, switch tubes and their large filter capacitors. Burning and blackening of commercial insurance will also be caused by problems in the anti-interference power supply circuit. In particular, special attention is paid to the fact that commercial fuse burns due to thermal breakdown of the switch tube will generally burn out the integrated IC and current detection resistor of the switching power supply. The thermistor is also very easy to burn out along with commercial insurance.
The fourth type: output voltage is too low
The key reason for the low output voltage:
1. Switching switching power supply load short-circuit fault problem, especially in the DC/DC converter short-circuit fault or poor characteristics, etc.;
2. The output voltage end filter capacitor or rectifier diode is invalid, etc., which can be distinguished according to the substitution method;
3. The characteristics of the switching tube are reduced, which causes the switching tube to fail to be turned on and off normally, which increases the internal resistance of the switching power supply and reduces the load working capacity;
4. The switching transformer is not good enough, which not only causes the output voltage to decrease, but also leads to insufficient encouragement of the switching tube and destroying the switching tube;
Type 5: Non-standard power plug
Our standard household installation single-phase electric power plug pole grounding device and the two methods of apex and soil. The application of the power plug shown in the figure should be able to prevent single-pole penetration. In addition, the appearance of the power plug does not match The requirements of the most common industrial plugs used in China are not detailed, it is very simple to cause electric shock accidents.
The sixth type: the marking of goods is not detailed or standardized
Identification should include the proper installation and proper guidance of the key information content of the customer to mark the shipping product, so as to ensure the personal safety of the customer and one of the fundamental methods for the safety of the industrial chain.
Seventh: commercial insurance damage
Commercial insurance destroys the key inspection rectifier bridge, diode, etc., in addition, it will also be caused by the hazard of the anti-interference power circuit. The key is to check the positions of the rectifier bridge, the diodes, and the large filter capacitor of the switch tube. Burning and blackening of commercial insurance will also be caused by problems in the anti-interference power supply circuit. In particular, special attention is paid to the fact that commercial fuse burns due to thermal breakdown of the switch tube will generally burn out the integrated IC and current detection resistor of the switching power supply. The thermistor is also very easy to burn out along with commercial insurance.
Read recommendations:
MK-C1806028 MKA ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
30-500W LED Power Supply 30-500W Power Supply
Transformer,High Frequency Transformer,Frequency Transformer
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 is the structure of the notebook power adapter?LINEAR ADAPTOR
2022-02-15What is a power adapter?Linear Power Adapter
2022-02-15Power adapter characteristics
2021-12-17How to choose the right power adapter for yourself?
2021-12-17R & D and production of more types of power adapters.power adapter Manufacturing
2021-12-07Power adapter CE certification.power supply adapter company
2021-12-03The main purpose and function of the power adapter.indian adapter Manufacturing
2021-12-03The difference between power adapter.dc power adapter wholesaler
2021-12-02Application of high frequency power adapter.dc power adapter wholesaler
2021-12-02Principle of switching power supply.india plug charger Merchant
2021-11-30Understand the cause of low output voltage caused by power adapter.ac power adapters Production
2021-11-30Is the power adapter a switching power supply?ac power adapters Production
2021-11-27What are the common insulation shielding technologies for power adapters?ac power adapters Productio
2021-11-279V power adapter price.india plug charger Merchant
2021-11-26power adapter customization.ac power adapter wholesaler
2021-11-26U.S. power adapter manufacturers.india plug charger Merchant
2021-11-25Power adapter customization.indian amplifier wholesaler
2021-11-259V power adapter.wall charger Factory
2021-11-24Switching power adapter manufacturer customization.adapter manufacturer
2021-11-23U.S. power adapter.adapter manufacturer
2021-11-23Quality issues must be considered when power adapters
2021-11-20usb power adapter.power supply factory
2021-11-20US standard power adapter wholesale customization.adapter manufacturer
2021-11-19Which switching power adapter is better.CE ADAPTOR wholesale
2021-11-19Which computer power adapter is of good quality.ac power adapter Processor
2021-11-18How to choose the right power adapter for yourself?ac power adapter Processor
2021-11-18Switching power adapter customization.AC ADAPTER wholesale
2021-11-17Which is the best standard power adapter?CE ADAPTOR Production
2021-11-17How to choose the right power adapter for yourself?
2021-11-1624V power adapter wholesale customization.LINEAR ADAPTOR sales
2021-11-16Popular recommended products
500W Charger,Charger
2020-08-28MKS-1202000-36 Switching Power Supply
2020-08-2936-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-2712VDC8A 96W power supply
2020-08-2824-65W Medical Switching Power Supply
2020-08-2712W POWER SUPPLY,12W CAR POWER SUPPLY,POWER SUPPLY,CAR POWER SUPPLY
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-273-100W PCBA power supply 3-100W Customized power supply 3-100W power supply
2020-08-27ER42 High Frequency Transformer
2020-08-2712-24W Medical Switching Power Supply
2020-08-27MKS-120200BS-36 Switching Power Supply
2020-08-293-15W Switching Power Supply
2020-08-2840W 4USB Charger,40W Charger,4USB Charger
2020-08-2712W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER
2020-08-27100-300W Charger,100W Charger,200W Charger,300W Charger
2020-08-27EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28EI-28 AC ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter Linear Adapter
2020-08-28MKS-120200EU-36 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
2020-08-2718-25W Switching Power Supply
2020-08-28MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-2810-24W Charger,24W Charger,10W Charger
2020-08-27MKS-1203000EX Switching Power Supply
2020-08-29MK-C1806028 MKA ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-2830-500W LED Power Supply 30-500W Power Supply
2020-08-27Transformer,High Frequency Transformer,Frequency Transformer
2020-08-2736-65W Switching Power Supply
2020-08-29MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28