source:Industry News Popular:adapter release time:2022-05-11 10:03:06 Article author:yu
First of all, from the perspective of the transformer itself, once the temperature rise is too high, it is mainly caused by four problems, namely copper loss, winding process problems, transformer iron loss and transformer design power is too small. No-load heating means the transformer insulation is damaged or the input voltage of the transformer is too high. If the insulation is damaged, the coil needs to be rewound. If the input voltage is high, the input voltage should be reduced or the number of coil turns should be increased. If the voltage is normal and it is hot and hot when the load is on, it means that the load of the power transformer is too large, and its load design needs to be changed.
In the design process of the switching power supply transformer, the heating of the MOS tube is the most serious, and the problem of its own high temperature rise is caused by the loss. The loss of the MOS tube consists of two parts: the switching process loss and the on-state loss. To reduce the on-state loss, the on-state loss can be reduced by selecting a low on-state resistance switch tube. The switching process loss is caused by the size of the gate charge and the switching time. Yes, reducing switching losses can be reduced by selecting devices with faster switching speeds and shorter recovery times. But what is more important is to reduce the loss by designing a better control method and buffering technology, such as the use of soft switching technology, which can greatly reduce this loss.
In addition, there is also a possibility that the temperature rise of the power transformer itself will be too high, that is, the aging phenomenon of the transformer itself. When the engineer checks the transformer itself and the MOS tube and finds no abnormality, it is necessary to make a comprehensive judgment based on the working time and working life of the transformer.
Read recommendations:
19V2A 36W Switching Power Supply
QC3.0 24W USB Charger,24W USB Charger,24W USB Charger,USB Charger
3-100W PCBA power supply 3-100W Customized power supply 3-100W power supply
Common problems and solutions for crimping plug power cord terminals
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 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
500W Charger,Charger
2020-08-2810-24W Charger,24W Charger,10W Charger
2020-08-27200-500W Switching Power Supply
2020-08-29MKS-1203000EX Switching Power Supply
2020-08-29MK-C1806028 MKA ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-2824V21A LED Power Supply 24V Power Supply 21A Power Supply
2020-08-2745W PD Charger,45W Charger,PD Charger
2020-08-273-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply
2020-08-27EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28EI Power Transformer Power Transformer
2020-08-27EI-28 AC ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter Linear Adapter
2020-08-28100-300W Charger,100W Charger,200W Charger,300W Charger
2020-08-27EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-2812V2ASwitching Power Supply
2020-08-283-8W Charger,3W Charger,8W Charger,4W Charger,5W Charger,6W Charger,7W Charger
2020-08-27MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-2812W 2USB Charger,2USB Charger,12W Charger,USB Charger
2020-08-27MKS-1201250HEU Switching Power Supply
2020-08-2912-36W POE POWER SUPPLY
2020-08-27MKS-120200EU-36 Switching Power Supply
2020-08-29Inductance & Coil
2020-08-2730-500W LED Power Supply 30-500W Power Supply
2020-08-2736-65W Switching Power Supply
2020-08-2972-200W Switching Power Supply
2020-08-2960W 6USB Charger,60W Charger,6USB Charger,Charger
2020-08-2736-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-27EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28Transformer,Power Transformer,Ring Power Transformer
2020-08-27ER42 High Frequency Transformer
2020-08-2712W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER
2020-08-27